/in/foo.cc: In function 'int main()':
/in/foo.cc:4:36: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
     scanf("%d %d %d %d",&n,&m,&x,&y);
                                    ^
/in/foo.cc:4:36: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
/in/foo.cc:4:36: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'long long int*' [-Wformat=]
/in/foo.cc:4:36: warning: format '%d' expects argument of type 'int*', but argument 5 has type 'long long int*' [-Wformat=]