fix: check victory earlier and remove the other check

drop4.c

@@ -11,11 +11,6 @@
 #define P1 1
 #define P2 2
 #define WIN_LENGTH 4
-
-#define DIR_HORIZONTAL 0
-#define DIR_VERTICAL 1
-#define DIR_DIAG_DOWN 2
-#define DIR_DIAG_UP 3
 #define NUM_DIRECTIONS 4
 
 typedef struct {
@@ -95,6 +90,8 @@ int is_winning_move(Game *game) {
         break;
       count++;
     }
+    if (count >= WIN_LENGTH)
+      return 1;
     for (int offset = 1; offset < WIN_LENGTH; offset++) {
       int new_row = row - directions[dir][0] * offset;
       int new_col = col - directions[dir][1] * offset;
@@ -106,8 +103,6 @@ int is_winning_move(Game *game) {
       if (count >= WIN_LENGTH)
         return 1;
     }
-    if (count >= WIN_LENGTH)
-      return 1;
   }
   return 0;
 }