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Some refactoring

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Tiago Garcia 2023-06-24 22:26:39 +01:00
parent bd026a7ff9
commit 47b55aaaec
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15 changed files with 366 additions and 346 deletions
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3
README.md
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@ -1,10 +1,13 @@
# Advent of Code # Advent of Code
## Solutions for the AoC Challenges, all in C# ## Solutions for the AoC Challenges, all in C#
### They might not be the best solutions but they work and that's the important part of a coders job :xdd: ### They might not be the best solutions but they work and that's the important part of a coders job :xdd:
## Solutions organized by year, 1 file per day. ## Solutions organized by year, 1 file per day.
### [2022](https://github.com/TiagoRG/AdventOfCode/tree/main/AdventOfCode/Year2022) ### [2022](https://github.com/TiagoRG/AdventOfCode/tree/main/AdventOfCode/Year2022)
* [Day 1](https://github.com/TiagoRG/AdventOfCode/tree/main/AdventOfCode/Year2022/Day1.cs) * [Day 1](https://github.com/TiagoRG/AdventOfCode/tree/main/AdventOfCode/Year2022/Day1.cs)
* [Day 2](https://github.com/TiagoRG/AdventOfCode/tree/main/AdventOfCode/Year2022/Day2.cs) * [Day 2](https://github.com/TiagoRG/AdventOfCode/tree/main/AdventOfCode/Year2022/Day2.cs)
* [Day 3](https://github.com/TiagoRG/AdventOfCode/tree/main/AdventOfCode/Year2022/Day3.cs) * [Day 3](https://github.com/TiagoRG/AdventOfCode/tree/main/AdventOfCode/Year2022/Day3.cs)

36
Utils/Extensions/LinqExtensions.cs
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@ -11,10 +11,10 @@ public static class LinqExtensions
/// <returns></returns> /// <returns></returns>
public static List<T> Sublist<T>(this List<T> list, int startIndex, int endIndex = default) public static List<T> Sublist<T>(this List<T> list, int startIndex, int endIndex = default)
{ {
List<T> result = new List<T>(); var result = new List<T>();
if (endIndex == default) if (endIndex == default)
endIndex = list.Count; endIndex = list.Count;
for (int i = startIndex; i < endIndex; i++) for (var i = startIndex; i < endIndex; i++)
result.Add(list[i]); result.Add(list[i]);
return result; return result;
} }
@ -27,8 +27,8 @@ public static class LinqExtensions
/// <returns></returns> /// <returns></returns>
public static List<T> GetColumn<T>(this List<List<T>> list, int column) public static List<T> GetColumn<T>(this List<List<T>> list, int column)
{ {
List<T> result = new List<T>(); var result = new List<T>();
foreach (List<T> row in list) result.AddRange(row.Where((t, i) => i == column)); foreach (var row in list) result.AddRange(row.Where((t, i) => i == column));
return result; return result;
} }
@ -39,9 +39,9 @@ public static class LinqExtensions
/// <returns>The reversed list</returns> /// <returns>The reversed list</returns>
public static List<T> Reversed<T>(this List<T> list) public static List<T> Reversed<T>(this List<T> list)
{ {
List<T> reversed = new List<T>(); var reversed = new List<T>();
for (int i = 0; i < list.Count; i++) for (var i = 0; i < list.Count; i++)
reversed.Add(list[list.Count-1-i]); reversed.Add(list[list.Count - 1 - i]);
return reversed; return reversed;
} }
@ -52,8 +52,8 @@ public static class LinqExtensions
/// <returns>A copy of the original list</returns> /// <returns>A copy of the original list</returns>
public static List<T> Clone<T>(this List<T> original) public static List<T> Clone<T>(this List<T> original)
{ {
List<T> ret = new List<T>(original.Count); var ret = new List<T>(original.Count);
foreach (T element in original) foreach (var element in original)
ret.Add(element); ret.Add(element);
return ret; return ret;
} }
@ -63,9 +63,9 @@ public static class LinqExtensions
where TValue : ICloneable where TValue : ICloneable
where TKey : notnull where TKey : notnull
{ {
Dictionary<TKey, TValue> ret = new Dictionary<TKey, TValue>(original.Count, original.Comparer); var ret = new Dictionary<TKey, TValue>(original.Count, original.Comparer);
foreach (KeyValuePair<TKey, TValue> entry in original) foreach (var entry in original)
ret.Add(entry.Key, (TValue) entry.Value.Clone()); ret.Add(entry.Key, (TValue)entry.Value.Clone());
return ret; return ret;
} }
@ -73,8 +73,8 @@ public static class LinqExtensions
(this Dictionary<TKey, List<TValue>> original) (this Dictionary<TKey, List<TValue>> original)
where TKey : notnull where TKey : notnull
{ {
Dictionary<TKey, List<TValue>> ret = new Dictionary<TKey, List<TValue>>(original.Count, original.Comparer); var ret = new Dictionary<TKey, List<TValue>>(original.Count, original.Comparer);
foreach (KeyValuePair<TKey, List<TValue>> entry in original) foreach (var entry in original)
ret.Add(entry.Key, entry.Value.Clone()); ret.Add(entry.Key, entry.Value.Clone());
return ret; return ret;
} }
@ -82,20 +82,20 @@ public static class LinqExtensions
public static void Fill<T>(this List<T> list, int count, T element) public static void Fill<T>(this List<T> list, int count, T element)
where T : ICloneable where T : ICloneable
{ {
for (int i = 0; i < count; i++) for (var i = 0; i < count; i++)
list.Add(element); list.Add(element);
} }
public static void Fill<T>(this List<List<T>> list, int count, List<T> element) public static void Fill<T>(this List<List<T>> list, int count, List<T> element)
{ {
for (int i = 0; i < count; i++) for (var i = 0; i < count; i++)
list.Add(element.Clone()); list.Add(element.Clone());
} }
public static void Set<T>(this List<T> list, int index, T element) public static void Set<T>(this List<T> list, int index, T element)
{ {
List<T> backup = list.Clone(); var backup = list.Clone();
list.Clear(); list.Clear();
for (int i = 0; i < list.Count; i++) list.Add(i == index ? element : list[i]); for (var i = 0; i < list.Count; i++) list.Add(i == index ? element : list[i]);
} }
} }

18
Utils/Extensions/MathExtensions.cs
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@ -18,7 +18,7 @@ public static class MathExtensions
{ {
Convert.ToInt32(s); Convert.ToInt32(s);
} }
catch (FormatException ignored) catch (FormatException)
{ {
return false; return false;
} }
@ -28,30 +28,32 @@ public static class MathExtensions
public static ulong ProductOfMax(this List<ulong> list, int maxCount) public static ulong ProductOfMax(this List<ulong> list, int maxCount)
{ {
List<ulong> maxList = new List<ulong>(maxCount); var maxList = new List<ulong>(maxCount);
foreach (ulong number in list) foreach (var number in list)
{ {
if (maxList.Count < maxList.Capacity) if (maxList.Count < maxList.Capacity)
{
maxList.Add(number); maxList.Add(number);
else }
if (number > maxList.Min()) else if (number > maxList.Min())
{ {
maxList.RemoveAt(0); maxList.RemoveAt(0);
maxList.Add(number); maxList.Add(number);
} }
maxList.Sort(); maxList.Sort();
} }
ulong product = 1; ulong product = 1;
maxList.ForEach(n => product*=n); maxList.ForEach(n => product *= n);
return product; return product;
} }
public static int LeastCommonMultiplier(this List<int> list) public static int LeastCommonMultiplier(this List<int> list)
{ {
int lcm = 1; var lcm = 1;
foreach (int i in list) foreach (var i in list)
lcm *= i / MathTools.GreatCommonDivider(lcm, i); lcm *= i / MathTools.GreatCommonDivider(lcm, i);
return lcm; return lcm;
} }

29
Year2022/Day1.cs
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@ -6,10 +6,12 @@ public class Day1
public Day1() public Day1()
{ {
Console.WriteLine("\nDay1 Solution"); Console.WriteLine($@"
Console.WriteLine($"Part1 Result: {Part1()}"); Day1 Solution
Console.WriteLine($"Part2 Result: {Part2()}"); Part1 Result: {Part1()}
Console.WriteLine("\n=============================\n"); Part2 Result: {Part2()}
=============================");
} }
private static int Part1() private static int Part1()
@ -19,30 +21,21 @@ public class Day1
private static int Part2() private static int Part2()
{ {
List<int> top3 = new List<int>(); return CaloriesPerElf.Order().Reverse().ToArray()[..3].Sum();
for (int i = 0; i < 3; i++)
{
top3.Add(CaloriesPerElf.Max());
CaloriesPerElf.Remove(CaloriesPerElf.Max());
}
return top3.Sum();
} }
private static List<int> GetCaloriesPerElf() private static List<int> GetCaloriesPerElf()
{ {
string[] calories = File.ReadAllLines("inputs/day1.txt"); var calories = File.ReadAllLines("inputs/day1.txt");
int[] caloriesPerDay = new int[calories.Length]; var caloriesPerDay = new int[calories.Length];
var index = 0; var index = 0;
foreach (string calorie in calories) foreach (var calorie in calories)
{
if (calorie == "") if (calorie == "")
index++; index++;
else else
caloriesPerDay[index] += Convert.ToInt32(calorie); caloriesPerDay[index] += Convert.ToInt32(calorie);
}
int elfCount = caloriesPerDay.ToList().IndexOf(0); var elfCount = caloriesPerDay.ToList().IndexOf(0);
return caloriesPerDay.ToList().GetRange(0, elfCount); return caloriesPerDay.ToList().GetRange(0, elfCount);
} }
} }

67
Year2022/Day10.cs
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@ -1,42 +1,43 @@
using AdventOfCode.Utils;
namespace AdventOfCode.Year2022; namespace AdventOfCode.Year2022;
public class Day10 public class Day10
{ {
private static readonly List<string> CommandsList = new(); private static readonly List<string> CommandsList = new();
public Day10() public Day10()
{ {
Console.WriteLine("Day10 Solution");
File.ReadAllLines("inputs/day10.txt").ToList().ForEach(line => CommandsList.Add(line)); File.ReadAllLines("inputs/day10.txt").ToList().ForEach(line => CommandsList.Add(line));
Console.WriteLine($@"
Console.WriteLine($"Part1 Result: {Part1()}"); Day10 Solution
Console.WriteLine($"Part2 Result: {Part2()}"); Part1 Result: {Part1()}
Console.WriteLine("\n=============================\n"); Part2 Result: {Part2()}
=============================");
} }
private static int Part1() private static int Part1()
{ {
int sum = 0; var sum = 0;
int currentPower = 1; var currentPower = 1;
int listIndex = 0; var listIndex = 0;
int addPower = 0; var addPower = 0;
int skipCycles = 0; var skipCycles = 0;
for (int cycle = 1; cycle <= 220; cycle++) for (var cycle = 1; cycle <= 220; cycle++)
{ {
if (skipCycles == 0) if (skipCycles == 0)
{ {
currentPower += addPower; currentPower += addPower;
string line = CommandsList[listIndex]; var line = CommandsList[listIndex];
string cmd = line.Substring(0, 4); var cmd = line.Substring(0, 4);
skipCycles = cmd == "noop" ? 0 : 1; skipCycles = cmd == "noop" ? 0 : 1;
addPower = cmd == "noop" ? 0 : Convert.ToInt32(line.Split(" ")[1]); addPower = cmd == "noop" ? 0 : Convert.ToInt32(line.Split(" ")[1]);
listIndex++; listIndex++;
} }
else else
{
skipCycles--; skipCycles--;
}
if ((cycle - 20) % 40 == 0) if ((cycle - 20) % 40 == 0)
sum += currentPower * cycle; sum += currentPower * cycle;
@ -47,37 +48,39 @@ public class Day10
private static string Part2() private static string Part2()
{ {
char[] crt = new char[40*6]; var crt = new char[40 * 6];
int registerPos = 0; var registerPos = 0;
int listIndex = 0; var listIndex = 0;
int movePos = 0; var movePos = 0;
int skipCycles = 0; var skipCycles = 0;
for (int cycle = 0; cycle < 240; cycle++) for (var cycle = 0; cycle < 240; cycle++)
{ {
if (skipCycles == 0) if (skipCycles == 0)
{ {
registerPos += movePos; registerPos += movePos;
string line = CommandsList[listIndex]; var line = CommandsList[listIndex];
string cmd = line[..4]; var cmd = line[..4];
skipCycles = cmd == "noop" ? 0 : 1; skipCycles = cmd == "noop" ? 0 : 1;
movePos = cmd == "noop" ? 0 : Convert.ToInt32(line.Split(" ")[1]); movePos = cmd == "noop" ? 0 : Convert.ToInt32(line.Split(" ")[1]);
listIndex++; listIndex++;
} }
else else
{
skipCycles--; skipCycles--;
char[] sprite = CreateSprite(registerPos);
crt[cycle] = sprite[cycle%40];
} }
string result = "\n"; var sprite = CreateSprite(registerPos);
int charI = 0; crt[cycle] = sprite[cycle % 40];
}
var result = "\n";
var charI = 0;
crt.ToList().ForEach(c => crt.ToList().ForEach(c =>
{ {
result += c.ToString(); result += c.ToString();
if ((charI+1)%40==0) if ((charI + 1) % 40 == 0)
result += "\n"; result += "\n";
charI++; charI++;
}); });
@ -86,9 +89,9 @@ public class Day10
private static char[] CreateSprite(int registerPos) private static char[] CreateSprite(int registerPos)
{ {
char[] result = new char[40]; var result = new char[40];
for (int i = 0; i < 40; i++) for (var i = 0; i < 40; i++)
result[i] = i > registerPos-1 && i < registerPos+3 ? '#' : '.'; result[i] = i > registerPos - 1 && i < registerPos + 3 ? '#' : ' ';
return result; return result;
} }
} }

78
Year2022/Day11.cs
View File

@ -9,45 +9,45 @@ public class Day11
public Day11() public Day11()
{ {
Console.WriteLine("Day11 Solution");
File.ReadAllText("inputs/day11.txt").Split("\n\n").ToList().ForEach(monkey => File.ReadAllText("inputs/day11.txt").Split("\n\n").ToList().ForEach(monkey =>
{ {
string[] lines = monkey.Split("\n"); var lines = monkey.Split("\n");
// Getting starting items // Getting starting items
List<Item> items1 = new List<Item>(); var items1 = new List<Item>();
List<Item> items2 = new List<Item>(); var items2 = new List<Item>();
lines[1][(lines[1].IndexOf(':') + 2)..].Split(", ").ToList().ForEach(item => lines[1][(lines[1].IndexOf(':') + 2)..].Split(", ").ToList().ForEach(item =>
{ {
items1.Add(new(Convert.ToInt32(item))); items1.Add(new Item(Convert.ToInt32(item)));
items2.Add(new(Convert.ToInt32(item))); items2.Add(new Item(Convert.ToInt32(item)));
}); });
// Getting operation // Getting operation
string op = lines[2][19..]; var op = lines[2][19..];
// Getting test info // Getting test info
int test = Convert.ToInt32(lines[3][21..]); var test = Convert.ToInt32(lines[3][21..]);
(int, int) testMonkeys = (Convert.ToInt32(lines[4][29..]), Convert.ToInt32(lines[5][30..])); var testMonkeys = (Convert.ToInt32(lines[4][29..]), Convert.ToInt32(lines[5][30..]));
Part1Monkeys.Add(new Monkey(items1, op, test, testMonkeys)); Part1Monkeys.Add(new Monkey(items1, op, test, testMonkeys));
Part2Monkeys.Add(new Monkey(items2, op, test, testMonkeys)); Part2Monkeys.Add(new Monkey(items2, op, test, testMonkeys));
}); });
Console.WriteLine($@"
Day11 Solution
Part1 Result: {Part1()}
Part2 Result: {Part2()}
Console.WriteLine($"Part1 Result: {Part1()}"); =============================");
Console.WriteLine($"Part2 Result: {Part2()}");
Console.WriteLine("\n=============================\n");
} }
private static ulong Part1() private static ulong Part1()
{ {
ulong[] inspections = new ulong[Part1Monkeys.Count]; var inspections = new ulong[Part1Monkeys.Count];
for (int round = 0; round < 20; round++) for (var round = 0; round < 20; round++)
foreach (Monkey monkey in Part1Monkeys) foreach (var monkey in Part1Monkeys)
{ {
foreach (Item item in monkey.Items) foreach (var item in monkey.Items)
{ {
if (monkey.Operation.Contains('+')) if (monkey.Operation.Contains('+'))
item.Value += Convert.ToInt32(monkey.Operation.Split(" ").Last()); item.Value += Convert.ToInt32(monkey.Operation.Split(" ").Last());
@ -63,6 +63,7 @@ public class Day11
].Items.Add(item); ].Items.Add(item);
inspections[Part1Monkeys.IndexOf(monkey)]++; inspections[Part1Monkeys.IndexOf(monkey)]++;
} }
monkey.Items.Clear(); monkey.Items.Clear();
} }
@ -75,23 +76,18 @@ public class Day11
foreach (var monkey in Part2Monkeys) foreach (var monkey in Part2Monkeys)
{ {
monkey.UpdateItems(); monkey.UpdateItems();
Dictionary<int, List<Item>> receiversAndItems = monkey.GetReceiversAndItems(); var receiversAndItems = monkey.GetReceiversAndItems();
foreach (int key in receiversAndItems.Keys) foreach (var key in receiversAndItems.Keys)
Part2Monkeys[key].ReceiveItems(receiversAndItems[key]); Part2Monkeys[key].ReceiveItems(receiversAndItems[key]);
} }
List<ulong> topMonkeys = new List<ulong>();
Part2Monkeys.ForEach(monkey => topMonkeys.Add((ulong) monkey.TotalItemsChecked)); var topMonkeys = new List<ulong>();
Part2Monkeys.ForEach(monkey => topMonkeys.Add((ulong)monkey.TotalItemsChecked));
return topMonkeys.ProductOfMax(2); return topMonkeys.ProductOfMax(2);
} }
private class Monkey private class Monkey
{ {
public List<Item> Items { get; set; }
public string Operation { get; }
public int DivisionTest { get; }
public (int, int) TestMonkeys { get; }
public int TotalItemsChecked { get; private set; }
public Monkey(List<Item> items, string operation, int divisionTest, (int, int) testMonkeys) public Monkey(List<Item> items, string operation, int divisionTest, (int, int) testMonkeys)
{ {
Items = items; Items = items;
@ -101,23 +97,29 @@ public class Day11
TotalItemsChecked = 0; TotalItemsChecked = 0;
} }
public List<Item> Items { get; private set; }
public string Operation { get; }
public int DivisionTest { get; }
public (int, int) TestMonkeys { get; }
public int TotalItemsChecked { get; private set; }
public void UpdateItems() public void UpdateItems()
{ {
if (Operation.Contains('+')) if (Operation.Contains('+'))
foreach (Item item in Items) foreach (var item in Items)
item.UpdateDivisibleBy(Operator.Add, Convert.ToInt32(Operation.Split(" ").Last())); item.UpdateDivisibleBy(Operator.Add, Convert.ToInt32(Operation.Split(" ").Last()));
else if (Operation == "old * old") else if (Operation == "old * old")
foreach (Item item in Items) foreach (var item in Items)
item.UpdateDivisibleBy(Operator.Square); item.UpdateDivisibleBy(Operator.Square);
else else
foreach (Item item in Items) foreach (var item in Items)
item.UpdateDivisibleBy(Operator.Multiply, Convert.ToInt32(Operation.Split(" ").Last())); item.UpdateDivisibleBy(Operator.Multiply, Convert.ToInt32(Operation.Split(" ").Last()));
TotalItemsChecked += Items.Count; TotalItemsChecked += Items.Count;
} }
public Dictionary<int, List<Item>> GetReceiversAndItems() public Dictionary<int, List<Item>> GetReceiversAndItems()
{ {
Dictionary<int, List<Item>> result = new Dictionary<int, List<Item>> var result = new Dictionary<int, List<Item>>
{ {
[TestMonkeys.Item1] = new(), [TestMonkeys.Item1] = new(),
[TestMonkeys.Item2] = new() [TestMonkeys.Item2] = new()
@ -141,19 +143,19 @@ public class Day11
private class Item private class Item
{ {
public int Value { get; set; }
public Dictionary<int, int> DivisibleBy { get; } = new();
public Item(int value) public Item(int value)
{ {
Value = value; Value = value;
foreach (int i in new[] { 2, 3, 5, 7, 11, 13, 17, 19, 23 }) foreach (var i in new[] { 2, 3, 5, 7, 11, 13, 17, 19, 23 })
DivisibleBy.Add(i, value % i); DivisibleBy.Add(i, value % i);
} }
public int Value { get; set; }
public Dictionary<int, int> DivisibleBy { get; } = new();
public void UpdateDivisibleBy(Operator op, int value = default) public void UpdateDivisibleBy(Operator op, int value = default)
{ {
foreach (int key in DivisibleBy.Keys) foreach (var key in DivisibleBy.Keys)
DivisibleBy[key] = op switch DivisibleBy[key] = op switch
{ {
Operator.Add => (DivisibleBy[key] + value) % key, Operator.Add => (DivisibleBy[key] + value) % key,
@ -166,6 +168,8 @@ public class Day11
private enum Operator private enum Operator
{ {
Add, Multiply, Square Add,
Multiply,
Square
} }
} }

26
Year2022/Day2.cs
View File

@ -6,16 +6,18 @@ public class Day2
public Day2() public Day2()
{ {
Console.WriteLine("Day2 Solution"); Console.WriteLine($@"
Console.WriteLine($"Part1 Result: {Part1()}"); Day2 Solution
Console.WriteLine($"Part2 Result: {Part2()}"); Part1 Result: {Part1()}
Console.WriteLine("\n=============================\n"); Part2 Result: {Part2()}
=============================");
} }
private static int Part1() private static int Part1()
{ {
int score = 0; var score = 0;
foreach (string[] match in Matches) foreach (var match in Matches)
{ {
if (match[0] == "A") if (match[0] == "A")
{ {
@ -26,6 +28,7 @@ public class Day2
if (match[1] == "Z") if (match[1] == "Z")
score += 3; score += 3;
} }
if (match[0] == "B") if (match[0] == "B")
{ {
if (match[1] == "X") if (match[1] == "X")
@ -35,6 +38,7 @@ public class Day2
if (match[1] == "Z") if (match[1] == "Z")
score += 3 + 6; score += 3 + 6;
} }
if (match[0] == "C") if (match[0] == "C")
{ {
if (match[1] == "X") if (match[1] == "X")
@ -51,8 +55,8 @@ public class Day2
private static int Part2() private static int Part2()
{ {
int score = 0; var score = 0;
foreach (string[] match in Matches) foreach (var match in Matches)
{ {
if (match[0] == "A") if (match[0] == "A")
{ {
@ -63,6 +67,7 @@ public class Day2
if (match[1] == "Z") if (match[1] == "Z")
score += 2 + 6; score += 2 + 6;
} }
if (match[0] == "B") if (match[0] == "B")
{ {
if (match[1] == "X") if (match[1] == "X")
@ -72,6 +77,7 @@ public class Day2
if (match[1] == "Z") if (match[1] == "Z")
score += 3 + 6; score += 3 + 6;
} }
if (match[0] == "C") if (match[0] == "C")
{ {
if (match[1] == "X") if (match[1] == "X")
@ -88,8 +94,8 @@ public class Day2
private static List<string[]> LoadMatches() private static List<string[]> LoadMatches()
{ {
List<string[]> matches = new List<string[]>(); var matches = new List<string[]>();
foreach (string line in File.ReadAllLines("inputs/day2.txt")) foreach (var line in File.ReadAllLines("inputs/day2.txt"))
matches.Add(line.Split(" ")); matches.Add(line.Split(" "));
return matches; return matches;
} }

58
Year2022/Day3.cs
View File

@ -6,55 +6,54 @@ public class Day3
public Day3() public Day3()
{ {
Console.WriteLine("Day3 Solution"); Console.WriteLine($@"
Console.WriteLine($"Part1 Result: {Part1()}"); Day3 Solution
Console.WriteLine($"Part2 Result: {Part2()}"); Part1 Result: {Part1()}
Console.WriteLine("\n=============================\n"); Part2 Result: {Part2()}
=============================");
} }
private static int Part1() private static int Part1()
{ {
int sum = 0; var sum = 0;
List<char> duplicates = new List<char>(); var duplicates = new List<char>();
foreach (string backpack in Backpacks) foreach (var backpack in Backpacks)
{ {
int compartmentSize = backpack.Length / 2; var compartmentSize = backpack.Length / 2;
List<char> itemsInCompartment1 = new List<char>(); var itemsInCompartment1 = new List<char>();
List<char> itemsInCompartment2 = new List<char>(); var itemsInCompartment2 = new List<char>();
for (int i = 0; i < compartmentSize; i++) for (var i = 0; i < compartmentSize; i++)
itemsInCompartment1.Add(backpack[i]); itemsInCompartment1.Add(backpack[i]);
for (int i = compartmentSize; i < compartmentSize * 2; i++) for (var i = compartmentSize; i < compartmentSize * 2; i++)
itemsInCompartment2.Add(backpack[i]); itemsInCompartment2.Add(backpack[i]);
char duplicatedItem = itemsInCompartment1.Intersect(itemsInCompartment2).FirstOrDefault(); var duplicatedItem = itemsInCompartment1.Intersect(itemsInCompartment2).FirstOrDefault();
duplicates.Add(duplicatedItem); duplicates.Add(duplicatedItem);
} }
foreach (char duplicate in duplicates) foreach (var duplicate in duplicates)
{ if (char.IsUpper(duplicate))
if (Char.IsUpper(duplicate))
sum += Convert.ToInt16(duplicate) - 38; sum += Convert.ToInt16(duplicate) - 38;
else else
sum += Convert.ToInt16(duplicate) - 96; sum += Convert.ToInt16(duplicate) - 96;
}
return sum; return sum;
} }
private static int Part2() private static int Part2()
{ {
int sum = 0; var sum = 0;
List<List<string>> groups = new List<List<string>>(); var groups = new List<List<string>>();
for (int i = 0; i < Backpacks.Length; i+=3) for (var i = 0; i < Backpacks.Length; i += 3)
{ {
List<string> group = new List<string>(); var group = new List<string>();
for (int x = 0; x < 3; x++) for (var x = 0; x < 3; x++)
{
try try
{ {
group.Add(Backpacks[i + x]); group.Add(Backpacks[i + x]);
@ -63,26 +62,23 @@ public class Day3
{ {
break; break;
} }
}
if (group.All(x => x != "")) if (group.All(x => x != ""))
groups.Add(group); groups.Add(group);
} }
List<char> duplicates = new List<char>(); var duplicates = new List<char>();
foreach (List<string> group in groups) foreach (var group in groups)
{ {
string[] groupArray = group.ToArray(); var groupArray = group.ToArray();
duplicates.Add(groupArray[0].Intersect(groupArray[1].Intersect(groupArray[2])).FirstOrDefault()); duplicates.Add(groupArray[0].Intersect(groupArray[1].Intersect(groupArray[2])).FirstOrDefault());
} }
foreach (char duplicate in duplicates) foreach (var duplicate in duplicates)
{ if (char.IsUpper(duplicate))
if (Char.IsUpper(duplicate))
sum += Convert.ToInt16(duplicate) - 38; sum += Convert.ToInt16(duplicate) - 38;
else else
sum += Convert.ToInt16(duplicate) - 96; sum += Convert.ToInt16(duplicate) - 96;
}
return sum; return sum;
} }

35
Year2022/Day4.cs
View File

@ -4,12 +4,10 @@ public class Day4
{ {
public Day4() public Day4()
{ {
Console.WriteLine("Day4 Solution"); var lines = File.ReadAllLines("inputs/day4.txt");
var containedCount = 0;
string[] lines = File.ReadAllLines("inputs/day4.txt"); var intersectedCount = 0;
int containedCount = 0; foreach (var line in lines)
int intersectedCount = 0;
foreach (string line in lines)
{ {
if (IsContained(line)) if (IsContained(line))
containedCount++; containedCount++;
@ -17,34 +15,37 @@ public class Day4
intersectedCount++; intersectedCount++;
} }
Console.WriteLine($"Part1 Result: {containedCount}"); Console.WriteLine($@"
Console.WriteLine($"Part2 Result: {intersectedCount}"); Day4 Solution
Console.WriteLine("\n=============================\n"); Part1 Result: {containedCount}
Part2 Result: {intersectedCount}
=============================");
} }
private static bool IsContained(string line) private static bool IsContained(string line)
{ {
int[][] limits = GetLimits(line); var limits = GetLimits(line);
return (limits[0][0] >= limits[1][0] && limits[0][1] <= limits[1][1]) return (limits[0][0] >= limits[1][0] && limits[0][1] <= limits[1][1])
|| (limits[1][0] >= limits[0][0] && limits[1][1] <= limits[0][1]); || (limits[1][0] >= limits[0][0] && limits[1][1] <= limits[0][1]);
} }
private static bool IsIntersected(string line) private static bool IsIntersected(string line)
{ {
int[][] limits = GetLimits(line); var limits = GetLimits(line);
return (limits[0][1] >= limits[1][0] && limits[0][0] <= limits[1][1]) return (limits[0][1] >= limits[1][0] && limits[0][0] <= limits[1][1])
|| (limits[1][1] >= limits[0][0] && limits[1][0] <= limits[0][1]); || (limits[1][1] >= limits[0][0] && limits[1][0] <= limits[0][1]);
} }
private static int[][] GetLimits(string line) private static int[][] GetLimits(string line)
{ {
string[] pair = line.Split(","); var pair = line.Split(",");
string[] pair1 = pair[0].Split("-"); var pair1 = pair[0].Split("-");
string[] pair2 = pair[1].Split("-"); var pair2 = pair[1].Split("-");
return new [] return new[]
{ {
new [] {Convert.ToInt32(pair1[0]), Convert.ToInt32(pair1[1])}, new[] { Convert.ToInt32(pair1[0]), Convert.ToInt32(pair1[1]) },
new [] {Convert.ToInt32(pair2[0]), Convert.ToInt32(pair2[1])} new[] { Convert.ToInt32(pair2[0]), Convert.ToInt32(pair2[1]) }
}; };
} }
} }

65
Year2022/Day5.cs
View File

@ -6,59 +6,59 @@ public class Day5
{ {
private static readonly Dictionary<int, List<char>> Crates = new() private static readonly Dictionary<int, List<char>> Crates = new()
{ {
[1] = new(), [1] = new List<char>(),
[2] = new(), [2] = new List<char>(),
[3] = new(), [3] = new List<char>(),
[4] = new(), [4] = new List<char>(),
[5] = new(), [5] = new List<char>(),
[6] = new(), [6] = new List<char>(),
[7] = new(), [7] = new List<char>(),
[8] = new(), [8] = new List<char>(),
[9] = new() [9] = new List<char>()
}; };
private static readonly List<(int, int, int)> Moves = new(); private static readonly List<(int, int, int)> Moves = new();
public Day5() public Day5()
{ {
Console.WriteLine("Day5 Solution"); var input = File.ReadAllText("inputs/day5.txt").Split("\n\n");
string[] input = File.ReadAllText("inputs/day5.txt").Split("\n\n");
LoadCrates(input[0]); LoadCrates(input[0]);
LoadMoves(input[1]); LoadMoves(input[1]);
Console.WriteLine($@"
Day5 Solution
Part1 Result: {Parts(Part.Part1)}
Part2 Result: {Parts(Part.Part2)}
Console.WriteLine($"Part1 Result: {Parts(Part.Part1)}"); =============================");
Console.WriteLine($"Part2 Result: {Parts(Part.Part2)}");
Console.WriteLine("\n=============================\n");
} }
private static string Parts(Part part) private static string Parts(Part part)
{ {
Dictionary<int, List<char>> crates = Crates.Clone(); var crates = Crates.Clone();
foreach ((int, int, int) move in Moves) foreach (var move in Moves)
{ {
List<char> cratesMoved = crates[move.Item2].Sublist(0, move.Item1); var cratesMoved = crates[move.Item2].Sublist(0, move.Item1);
for (int i = 0; i < move.Item1; i++) for (var i = 0; i < move.Item1; i++)
crates[move.Item2].Remove(crates[move.Item2][0]); crates[move.Item2].Remove(crates[move.Item2][0]);
foreach (char crate in part == Part.Part1 ? cratesMoved : cratesMoved.Reversed()) foreach (var crate in part == Part.Part1 ? cratesMoved : cratesMoved.Reversed())
crates[move.Item3].Insert(0, crate); crates[move.Item3].Insert(0, crate);
} }
string result = ""; var result = "";
foreach (List<char> crateList in crates.Values) foreach (var crateList in crates.Values)
result += crateList[0]; result += crateList[0];
return result; return result;
} }
private static void LoadCrates(string crates) private static void LoadCrates(string crates)
{ {
string[] crate_lines = crates.Split("\n"); var crate_lines = crates.Split("\n");
foreach (string line in crate_lines) foreach (var line in crate_lines)
{ {
int firstCrate = 0; var firstCrate = 0;
if (line[firstCrate] == '[') if (line[firstCrate] == '[')
Crates[1].Add(line[1]); Crates[1].Add(line[1]);
while (line.Substring(firstCrate+1).Contains('[')) while (line.Substring(firstCrate + 1).Contains('['))
{ {
firstCrate = line.IndexOf('[', firstCrate + 1); firstCrate = line.IndexOf('[', firstCrate + 1);
Crates[firstCrate / 4 + 1].Add(line[firstCrate + 1]); Crates[firstCrate / 4 + 1].Add(line[firstCrate + 1]);
@ -68,18 +68,19 @@ public class Day5
private static void LoadMoves(string moves) private static void LoadMoves(string moves)
{ {
string[] move_lines = moves.Split("\n"); var move_lines = moves.Split("\n");
foreach (string line in move_lines) foreach (var line in move_lines)
{ {
string move = line.Substring(5); var move = line.Substring(5);
string[] moved = move.Split(" from "); var moved = move.Split(" from ");
string[] crates = moved[1].Split(" to "); var crates = moved[1].Split(" to ");
Moves.Add((Convert.ToInt32(moved[0]), Convert.ToInt32(crates[0]), Convert.ToInt32(crates[1]))); Moves.Add((Convert.ToInt32(moved[0]), Convert.ToInt32(crates[0]), Convert.ToInt32(crates[1])));
} }
} }
private enum Part private enum Part
{ {
Part1, Part2 Part1,
Part2
} }
} }

12
Year2022/Day6.cs
View File

@ -6,15 +6,17 @@ public class Day6
public Day6() public Day6()
{ {
Console.WriteLine("Day6 Solution"); Console.WriteLine($@"
Console.WriteLine($"Part1 Result: {GetValidMarkerIndex(4)}"); Day6 Solution
Console.WriteLine($"Part2 Result: {GetValidMarkerIndex(14)}"); Part1 Result: {GetValidMarkerIndex(4)}
Console.WriteLine("\n=============================\n"); Part2 Result: {GetValidMarkerIndex(14)}
=============================");
} }
private static int? GetValidMarkerIndex(int size) private static int? GetValidMarkerIndex(int size)
{ {
for (int i = 0; i < Input.Length-size; i++) for (var i = 0; i < Input.Length - size; i++)
if (ValidateMarker(Input.Substring(i, size))) if (ValidateMarker(Input.Substring(i, size)))
return i + size; return i + size;
return null; return null;

57
Year2022/Day7.cs
View File

@ -6,18 +6,20 @@ public class Day7
public Day7() public Day7()
{ {
Console.WriteLine("Day7 Solution"); Console.WriteLine($@"
Console.WriteLine($"Part1 Result: {Part1()}"); Day7 Solution
Console.WriteLine($"Part2 Result: {Part2()}"); Part1 Result: {Part1()}
Console.WriteLine("\n=============================\n"); Part2 Result: {Part2()}
=============================");
} }
private static int Part1() private static int Part1()
{ {
int sum = 0; var sum = 0;
foreach (string path in Tree.Keys) foreach (var path in Tree.Keys)
{ {
int size = CalculateDirSize(path); var size = CalculateDirSize(path);
if (size <= 100000) if (size <= 100000)
sum += size; sum += size;
} }
@ -27,16 +29,13 @@ public class Day7
private static int Part2() private static int Part2()
{ {
int neededSpace = CalculateDirSize("/") - 40000000; var neededSpace = CalculateDirSize("/") - 40000000;
if (neededSpace <= 0) if (neededSpace <= 0) return 0;
{
return 0;
}
List<int> bigEnoughDir = new List<int>(); var bigEnoughDir = new List<int>();
foreach (string path in Tree.Keys) foreach (var path in Tree.Keys)
{ {
int size = CalculateDirSize(path); var size = CalculateDirSize(path);
if (size > neededSpace) if (size > neededSpace)
bigEnoughDir.Add(size); bigEnoughDir.Add(size);
} }
@ -47,11 +46,11 @@ public class Day7
private static int CalculateDirSize(string path) private static int CalculateDirSize(string path)
{ {
int size = 0; var size = 0;
List<string> dirContent = Tree[path]; var dirContent = Tree[path];
foreach (string content in dirContent) foreach (var content in dirContent)
{ {
string[] properties = content.Split(" "); var properties = content.Split(" ");
if (properties[0] == "dir") if (properties[0] == "dir")
size += CalculateDirSize(path + properties[1] + "/"); size += CalculateDirSize(path + properties[1] + "/");
else else
@ -63,39 +62,41 @@ public class Day7
private static Dictionary<string, List<string>> GetTree() private static Dictionary<string, List<string>> GetTree()
{ {
Dictionary<string, List<string>> tree = new Dictionary<string, List<string>>(); var tree = new Dictionary<string, List<string>>();
string currentPath = ""; var currentPath = "";
IEnumerable<string> input = File.ReadLines("inputs/day7.txt"); var input = File.ReadLines("inputs/day7.txt");
foreach (string line in input) foreach (var line in input)
{
if (line.StartsWith("$")) if (line.StartsWith("$"))
{ {
string[] cmdLine = line.Substring(2).Split(" "); var cmdLine = line.Substring(2).Split(" ");
if (cmdLine[0] == "cd") if (cmdLine[0] == "cd")
{ {
string dir = cmdLine[1]; var dir = cmdLine[1];
if (dir == "/") if (dir == "/")
{
currentPath = "/"; currentPath = "/";
}
else if (dir == "..") else if (dir == "..")
{ {
if (currentPath == "/") continue; if (currentPath == "/") continue;
int slashIndex = currentPath var slashIndex = currentPath
.Substring(0, currentPath.Length - 1) .Substring(0, currentPath.Length - 1)
.LastIndexOf('/'); .LastIndexOf('/');
currentPath = currentPath.Substring(0, slashIndex + 1); currentPath = currentPath.Substring(0, slashIndex + 1);
} }
else else
{
currentPath += dir + "/"; currentPath += dir + "/";
} }
} }
}
else else
{ {
if (!tree.ContainsKey(currentPath)) if (!tree.ContainsKey(currentPath))
tree.Add(currentPath, new List<string>()); tree.Add(currentPath, new List<string>());
tree[currentPath].Add(line); tree[currentPath].Add(line);
} }
}
return tree; return tree;
} }

47
Year2022/Day8.cs
View File

@ -8,18 +8,20 @@ public class Day8
public Day8() public Day8()
{ {
Console.WriteLine("Day8 Solution"); Console.WriteLine($@"
Console.WriteLine($"Part1 Result: {Part1()}"); Day8 Solution
Console.WriteLine($"Part2 Result: {Part2()}"); Part1 Result: {Part1()}
Console.WriteLine("\n=============================\n"); Part2 Result: {Part2()}
=============================");
} }
private static int Part1() private static int Part1()
{ {
int count = 0; var count = 0;
for (int i = 0; i < TreeMap.Count; i++) for (var i = 0; i < TreeMap.Count; i++)
for (int j = 0; j < TreeMap[i].Count; j++) for (var j = 0; j < TreeMap[i].Count; j++)
if (i == 0 || i == TreeMap.Count-1 || j == 0 || j == TreeMap.Count-1 if (i == 0 || i == TreeMap.Count - 1 || j == 0 || j == TreeMap.Count - 1
|| TreeMap[i].Sublist(0, j).Max() < TreeMap[i][j] || TreeMap[i].Sublist(0, j).Max() < TreeMap[i][j]
|| TreeMap[i].Sublist(j + 1, TreeMap[i].Count).DefaultIfEmpty().Max() < TreeMap[i][j] || TreeMap[i].Sublist(j + 1, TreeMap[i].Count).DefaultIfEmpty().Max() < TreeMap[i][j]
|| TreeMap.GetColumn(j).Sublist(0, i).Max() < TreeMap[i][j] || TreeMap.GetColumn(j).Sublist(0, i).Max() < TreeMap[i][j]
@ -30,18 +32,18 @@ public class Day8
private static int Part2() private static int Part2()
{ {
int highestScore = 0; var highestScore = 0;
for (int i = 0; i < TreeMap.Count; i++) for (var i = 0; i < TreeMap.Count; i++)
for (int j = 0; j < TreeMap[i].Count; j++) for (var j = 0; j < TreeMap[i].Count; j++)
{ {
if (i == 0 || j == 0) continue; if (i == 0 || j == 0) continue;
int currentTree = TreeMap[i][j]; var currentTree = TreeMap[i][j];
int currentTreeScore = 1; var currentTreeScore = 1;
int directionCount = 0; var directionCount = 0;
for (int k = i - 1; k >= 0; k--) for (var k = i - 1; k >= 0; k--)
{ {
directionCount++; directionCount++;
if (TreeMap[k][j] >= currentTree) break; if (TreeMap[k][j] >= currentTree) break;
@ -50,7 +52,7 @@ public class Day8
currentTreeScore *= directionCount; currentTreeScore *= directionCount;
directionCount = 0; directionCount = 0;
for (int k = j - 1; k >= 0; k--) for (var k = j - 1; k >= 0; k--)
{ {
directionCount++; directionCount++;
if (TreeMap[i][k] >= currentTree) break; if (TreeMap[i][k] >= currentTree) break;
@ -59,7 +61,7 @@ public class Day8
currentTreeScore *= directionCount; currentTreeScore *= directionCount;
directionCount = 0; directionCount = 0;
for (int k = i + 1; k < TreeMap.Count; k++) for (var k = i + 1; k < TreeMap.Count; k++)
{ {
directionCount++; directionCount++;
if (TreeMap[k][j] >= currentTree) break; if (TreeMap[k][j] >= currentTree) break;
@ -68,7 +70,7 @@ public class Day8
currentTreeScore *= directionCount; currentTreeScore *= directionCount;
directionCount = 0; directionCount = 0;
for (int k = j + 1; k < TreeMap[i].Count; k++) for (var k = j + 1; k < TreeMap[i].Count; k++)
{ {
directionCount++; directionCount++;
if (TreeMap[i][k] >= currentTree) break; if (TreeMap[i][k] >= currentTree) break;
@ -83,14 +85,15 @@ public class Day8
private static List<List<int>> LoadMap() private static List<List<int>> LoadMap()
{ {
List<List<int>> map = new List<List<int>>(); var map = new List<List<int>>();
string[] lines = File.ReadAllLines("inputs/day8.txt"); var lines = File.ReadAllLines("inputs/day8.txt");
for (int i = 0; i < lines.Length; i++) for (var i = 0; i < lines.Length; i++)
{ {
map.Add(new List<int>()); map.Add(new List<int>());
for (int j = 0; j < lines[i].Length; j++) for (var j = 0; j < lines[i].Length; j++)
map[i].Add(Convert.ToInt32(lines[i][j].ToString())); map[i].Add(Convert.ToInt32(lines[i][j].ToString()));
} }
return map; return map;
} }
} }

42
Year2022/Day9.cs
View File

@ -6,34 +6,37 @@ public class Day9
{ {
public Day9() public Day9()
{ {
Console.WriteLine("Day9 Solution"); var moves = new List<(char, int)>();
List<(char, int)> moves = new List<(char, int)>();
File.ReadAllLines("inputs/day9.txt").ToList().ForEach(line => File.ReadAllLines("inputs/day9.txt").ToList().ForEach(line =>
{ {
string[] split = line.Split(" "); var split = line.Split(" ");
moves.Add((Convert.ToChar(split[0]), Convert.ToInt32(split[1]))); moves.Add((Convert.ToChar(split[0]), Convert.ToInt32(split[1])));
}); });
Console.WriteLine($"Part1 Result: {GetPositionCount(moves, 2)}"); Console.WriteLine($@"
Console.WriteLine($"Part2 Result: {GetPositionCount(moves, 10)}"); Day9 Solution
Console.WriteLine("\n=============================\n"); Part1 Result: {GetPositionCount(moves, 2)}
Part2 Result: {GetPositionCount(moves, 10)}
=============================");
} }
private static int GetPositionCount(List<(char, int)> moves, int knots) private static int GetPositionCount(List<(char, int)> moves, int knots)
{ {
List<List<int>> currentPositions = new List<List<int>>(); var currentPositions = new List<List<int>>();
currentPositions.Fill(knots, new List<int>(new[]{0,0})); currentPositions.Fill(knots, new List<int>(new[] { 0, 0 }));
HashSet<(int, int)> tailHistory = new HashSet<(int, int)>(); var tailHistory = new HashSet<(int, int)>();
foreach ((char, int) move in moves) foreach (var move in moves)
for (int moveN = 0; moveN < move.Item2; moveN++) for (var moveN = 0; moveN < move.Item2; moveN++)
{ {
int[] vector = GetVector(move.Item1); var vector = GetVector(move.Item1);
int[] previousTailPosition = currentPositions[0].ToArray(); var previousTailPosition = currentPositions[0].ToArray();
currentPositions[0] = UpdateHead(vector, currentPositions[0]); currentPositions[0] = UpdateHead(vector, currentPositions[0]);
for (int tailN = 0; tailN < knots-1; tailN++) for (var tailN = 0; tailN < knots - 1; tailN++)
{ {
int[] nextPreviousTailPosition = currentPositions[tailN + 1].ToArray(); var nextPreviousTailPosition = currentPositions[tailN + 1].ToArray();
currentPositions[tailN + 1] = UpdateTail(currentPositions[tailN], currentPositions[tailN + 1], previousTailPosition); currentPositions[tailN + 1] = UpdateTail(currentPositions[tailN], currentPositions[tailN + 1],
previousTailPosition);
previousTailPosition = nextPreviousTailPosition; previousTailPosition = nextPreviousTailPosition;
if (tailN == knots - 2) if (tailN == knots - 2)
tailHistory.Add((currentPositions[knots - 1][0], currentPositions[knots - 1][1])); tailHistory.Add((currentPositions[knots - 1][0], currentPositions[knots - 1][1]));
@ -50,9 +53,10 @@ public class Day9
return new List<int> { currentPosition[0], currentPosition[1] }; return new List<int> { currentPosition[0], currentPosition[1] };
} }
private static List<int> UpdateTail(List<int> currentHeadPosition, List<int> currentTailPosition, int[] previousTailPosition) private static List<int> UpdateTail(List<int> currentHeadPosition, List<int> currentTailPosition,
int[] previousTailPosition)
{ {
List<int> head = new List<int> var head = new List<int>
{ {
currentHeadPosition[0] - previousTailPosition[0], currentHeadPosition[0] - previousTailPosition[0],
currentHeadPosition[1] - previousTailPosition[1] currentHeadPosition[1] - previousTailPosition[1]
@ -69,7 +73,7 @@ public class Day9
currentTailPosition[1] + head[1] currentTailPosition[1] + head[1]
}; };
List<int> difference = new List<int> var difference = new List<int>
{ {
currentHeadPosition[0] - currentTailPosition[0], currentHeadPosition[0] - currentTailPosition[0],
currentHeadPosition[1] - currentTailPosition[1] currentHeadPosition[1] - currentTailPosition[1]

1
Year2022/Loader2022.cs
View File

@ -21,5 +21,6 @@ public static class Loader2022
new Day9(); new Day9();
new Day10(); new Day10();
// new Day11(); // new Day11();
// new Day12();
} }
} }