/in/foo.cc: In function 'int main()':
/in/foo.cc:19:30: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'll* {aka long long int*}' [-Wformat=]
  scanf("%d%d%d%d",&m,&n,&k,&l);
                              ^
/in/foo.cc:19:30: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'll* {aka long long int*}' [-Wformat=]
/in/foo.cc:19:30: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'll* {aka long long int*}' [-Wformat=]
/in/foo.cc:19:30: warning: format '%d' expects argument of type 'int*', but argument 5 has type 'll* {aka long long int*}' [-Wformat=]