/in/foo.cc: In function 'int main()':
/in/foo.cc:45:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(int i=1;i<=top;i++)printf("%d ",ans[i]);puts("");
  ^~~
/in/foo.cc:45:46: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
  for(int i=1;i<=top;i++)printf("%d ",ans[i]);puts("");
                                              ^~~~