foo.cc: In member function 'void AlGO::Graph_Theory::HLPP_MaxFlow<N, M>::BFS()':
foo.cc:193:17: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
  193 |                 while(!QU.empty())QU.pop();QU.push(T);
      |                 ^~~~~
foo.cc:193:44: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
  193 |                 while(!QU.empty())QU.pop();QU.push(T);
      |                                            ^~
foo.cc: In member function 'bool AlGO::OIMath::Number_Theory::Miller_Rabin_CheckPrime::operator()(long long int)':
foo.cc:574:28: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
  574 |                     while(u&1^1)u>>=1,++t;
      |                           ~^~
foo.cc: In function 'long long int AlGO::FastIO::Read()':
foo.cc:950:29: warning: 'last' may be used uninitialized [-Wmaybe-uninitialized]
  950 |             return last=='-'?-s:s;
      |                    ~~~~~~~~~^~~~~
foo.cc:947:39: note: 'last' was declared here
  947 |             int s=0;char ch=getchar(),last;
      |                                       ^~~~

Found 10 testcases.
[Hydro](https://hydro.ac)提供评测服务