55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
#include <ctype.h>
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#include <stdio.h>
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#include <string.h>
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#include <strings.h>
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int main() {
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char string1[50], string2[50];
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printf("String 1: ");
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scanf("%s", string1);
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printf("String 2: ");
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scanf("%s", string2);
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// Count how many letters in string 1
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int count = 0;
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for (int i = 0; i<(int)(sizeof(string1)/sizeof(*string1)); i++) {
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if(isalpha(string1[i])) count++;
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}
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printf("Letters in string 1: %d\n", count);
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// Count how many uppercase letters in string 2
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count = 0;
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for (int i = 0; i<(int)(sizeof(string2)/sizeof(*string2)); i++) {
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if(isupper(string2[i])) count++;
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}
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printf("Uppercase in string 2: %d\n", count);
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// Convert both strings to lowercase
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for (int i = 0; i<(int)(sizeof(string1)/sizeof(*string1)); i++) {
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if(isupper(string1[i])) string1[i] = tolower(string1[i]);
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}
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for (int i = 0; i<(int)(sizeof(string2)/sizeof(*string2)); i++) {
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if(isupper(string2[i])) string2[i] = tolower(string2[i]);
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}
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printf("String 1 to lower: %s\nString 2 to lower: %s\n", string1, string2);
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if (strcmp(string1, string2) < 0) {
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printf("Strings are different\nOrdered alphabetically: %s, %s", string1, string2);
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} else if (strcmp(string1, string2) > 0) {
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printf("Strings are different\nOrdered alphabetically: %s, %s", string2, string1);
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} else {
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printf("Strings are equal");
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}
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// create a copy of string2 with name string3
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char string3[50];
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strcpy(string3, string2);
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// concatenate string2 and string3
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strcat(string2, string3);
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printf("\nConcatenated string2 and string3: %s", string2);
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return 0;
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}
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