/in/foo.c: In function 'main':
/in/foo.c:24:17: warning: unused variable 'opponent_rounds' [-Wunused-variable]
   24 |             int opponent_rounds = (n - i) / 1;  // 对手从右侧拿
      |                 ^~~~~~~~~~~~~~~
/in/foo.c:23:17: warning: unused variable 'ming_rounds' [-Wunused-variable]
   23 |             int ming_rounds = (i + 1) / 1;      // 小明从左侧拿
      |                 ^~~~~~~~~~~