Initialization

cv9/snake.c

@@ -12,7 +12,7 @@ struct snake* add_snake(struct snake* snake,int x,int y){
 struct snake* remove_snake(struct snake* snake) {
     struct snake* head;
     struct snake* this = head;
-    while (this->next != NULL){
+    if (this!= NULL) {
         this = this->next;
         free(this);
     }