/in/foo.cc: In function 'int main()':
/in/foo.cc:23:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(int a=1;a<sum[N];a++)
  ^~~
/in/foo.cc:32:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
    if(Ans>0)
    ^~