foo.cc: In function ‘int main()’:
foo.cc:5:14: error: ‘n’ was not declared in this scope
    5 |         cin>>n>>k;
      |              ^
foo.cc:5:17: error: ‘k’ was not declared in this scope
    5 |         cin>>n>>k;
      |                 ^

正在同步测试数据，请稍后
Found 3 testcases.