/in/foo.cc: In function 'int main()':
/in/foo.cc:17:1: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
 for(int i=1;i<=n;i++)
 ^~~
/in/foo.cc:27:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
  int now=n; int all=m,cnt=0;
  ^~~
/in/foo.cc:27:23: warning: unused variable 'cnt' [-Wunused-variable]
  int now=n; int all=m,cnt=0;
                       ^~~