/in/foo.cc: In function 'int main()':
/in/foo.cc:19:24: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
     scanf("%d %d",&n,&m);
                        ^
/in/foo.cc:19:24: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
/in/foo.cc:23:28: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
         scanf("%d %d",&x,&y);
                            ^
/in/foo.cc:23:28: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
/in/foo.cc:27:28: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
         scanf("%d %d",&x,&y);
                            ^
/in/foo.cc:27:28: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]