correction to foldint

subjects/foldint.en.md

@@ -20,7 +20,7 @@ The function should have as parameters a function, `f func(int, int) int` a slic
 ### Expected function
 
 ```go
-func FoldInt(f func(int, int) int, slice []int, acc int) {
+func FoldInt(f func(int, int) int, arr []int, n int) {
 
 }
 ```