/in/foo.cc: In function 'int main()':
/in/foo.cc:12:28: warning: format '%ld' expects argument of type 'long int*', but argument 2 has type 'int*' [-Wformat=]
  while(scanf("%ld%ld",&n,&m)!=EOF){
                            ^
/in/foo.cc:12:28: warning: format '%ld' expects argument of type 'long int*', but argument 3 has type 'int*' [-Wformat=]