/in/foo.cc: In function 'int main()':
/in/foo.cc:12:16: warning: format '%ld' expects argument of type 'long int*', but argument 2 has type 'll* {aka long long int*}' [-Wformat=]
  scanf("%ld",&n);
                ^
/in/foo.cc:18:23: warning: format '%ld' expects argument of type 'long int*', but argument 2 has type 'll* {aka long long int*}' [-Wformat=]
      scanf("%ld",&a[i]);
                       ^
/in/foo.cc:25:27: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'll {aka long long int}' [-Wformat=]
     printf("%ld\n",f[1][n]);
                           ^