/in/foo.cc: In function 'int main()':
/in/foo.cc:30:18: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
     scanf("%d",&n);
                  ^
/in/foo.cc:31:44: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
     for(int i=0;i<n;i++) scanf("%d",&num[i]);
                                            ^
/in/foo.cc:32:24: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
     scanf("%d %d",&a,&b);
                        ^
/in/foo.cc:32:24: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
/in/foo.cc:34:20: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
     printf("%d",ans);
                    ^