/in/foo.cc: In function 'int main()':
/in/foo.cc:22:22: 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:22:22: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
/in/foo.cc:25:32: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
             scanf("%d",&a[i][j]);
                                ^
/in/foo.cc:29:20: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
     printf("%d",ans);
                    ^