diff --git a/1ano/1semestre/fp/extra3/ex02.py b/1ano/1semestre/fp/extra3/ex02.py
index 06af1d6..5809bdc 100644
--- a/1ano/1semestre/fp/extra3/ex02.py
+++ b/1ano/1semestre/fp/extra3/ex02.py
@@ -5,12 +5,8 @@
 # os primeiros n elementos igualam os últimos n elementos (sem sobreposição).
 
 def firstEqualLast(lst):
-    if len(lst) <= 1:
-        return 0
-
     n = 0
     for i in range(1, len(lst)//2+1):
-        if lst[:i] == lst[len(lst)-i:]:
+        if lst[:i] == lst[-i:]:
             n = i
-
     return n
diff --git a/1ano/2semestre/README.md b/1ano/2semestre/README.md
index 9b19431..2253c75 100644
--- a/1ano/2semestre/README.md
+++ b/1ano/2semestre/README.md
@@ -5,6 +5,7 @@
 - [Laboratórios de Informática](https://github.com/TiagoRG/uaveiro-leci/tree/master/1ano/2semestre/labi)
 - [Laboratório de Sistemas Digitais](https://github.com/TiagoRG/uaveiro-leci/tree/master/1ano/2semestre/lsd)
 - [Matem&aacute;tica Discreta](https://github.com/TiagoRG/uaveiro-leci/tree/master/1ano/2semestre/md)
+- [C&aacute;lculo - 2](https://github.com/TiagoRG/uaveiro-leci/tree/master/1ano/2semestre/c2)
 
 ---
 *Pode conter erros, caso encontre algum, crie um* [*ticket*](https://github.com/TiagoRG/uaveiro-leci/issues/new)
diff --git a/1ano/README.md b/1ano/README.md
index 3651b9e..a494f50 100755
--- a/1ano/README.md
+++ b/1ano/README.md
@@ -14,6 +14,7 @@
 - [Laboratórios de Informática](https://github.com/TiagoRG/uaveiro-leci/tree/master/1ano/2semestre/labi)
 - [Laboratório de Sistemas Digitais](https://github.com/TiagoRG/uaveiro-leci/tree/master/1ano/2semestre/lsd)
 - [Matem&aacute;tica Discreta](https://github.com/TiagoRG/uaveiro-leci/tree/master/1ano/2semestre/md)
+- [C&aacute;lculo - 2](https://github.com/TiagoRG/uaveiro-leci/tree/master/1ano/2semestre/c2)
 
 ---
 *Pode conter erros, caso encontre algum, crie um* [*ticket*](https://github.com/TiagoRG/uaveiro-leci/issues/new)