此题链接单击这里
=================
#include <iostream>
#include <cstring>
#include <cmath>
using namespace std;
int a[30][30];
int c[21][21][21];
int d[
=================
#include <iostream>
#include <cstring>
#include <cmath>
using namespace std;
int a[30][30];
int c[21][21][21];
int d[