/in/foo.cc: In function 'int main()':
/in/foo.cc:51:52: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long long int' [-Wformat=]
    printf("f[n][%d][k]=%d\n",sts[s],f[n][sts[s]][k]);
                                                    ^