/in/foo.cc: In function 'int main()':
/in/foo.cc:23:31: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
   scanf("%d%d",&x[i].q,&x[i].f);
                               ^
/in/foo.cc:23:31: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
/in/foo.cc:29:7: warning: variable 'flag' set but not used [-Wunused-but-set-variable]
   int flag=1;
       ^~~~