bugfix

tests/exemple_collision.c

@@ -43,6 +43,7 @@ int main(){
 
       return 0;
     } else {
+      i++;
       l = list_push(l, p);
     }
   }

tests/list_tests.c

 #include <assert.h>
 #include <stdio.h>
-#include "linked_list.h"
+#include "list.h"
 #include "bignum.h"
 
 void test_emptyness() {