记录详情

foo.cc: In function 'int main()':
foo.cc:6:7: warning: unused variable 'a' [-Wunused-variable]
    6 |   int a;
      |       ^

[Hydro](https://hydro.ac)提供评测服务

#	状态	耗时	内存占用
#1	Wrong Answer Read 4, expect 29.	4ms	412.0 KiB
#2	Wrong Answer Read 4, expect 146.	4ms	412.0 KiB

Wrong Answer