/in/foo.cc: In function 'int main()':
/in/foo.cc:51:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   for(rg i=1;i<=n;i++)
   ^~~
/in/foo.cc:53:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
    printf("%d\n",ans);
    ^~~~~~