/in/foo.cc: In function 'int main()':
/in/foo.cc:62:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for(int u=1;u<=N;u++)
     ^~~
/in/foo.cc:70:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
  int inZero=0,outZero=0;
  ^~~