蓝桥杯-振兴中华

荒废了好多天没有敲代码了，先拿蓝桥杯的题目练练手

这题虽然结果正确，但写的时候不敢肯定它是对的

#include <iostream>
using namespace std;

int a[4][5] = {1,2,3,4,5,
               2,3,4,5,6,
               3,4,5,6,7,
               4,5,6,7,8};
int num = 0;
void dfs(int x,int y)
{if(x==3 && y==4)
         num++;
     if(a[x][y+1] == a[x][y]+1)
        dfs(x,y+1);
     if(a[x+1][y] == a[x][y]+1)
        dfs(x+1,y);
        }
int main()
{
    dfs(0,0);
    cout << num;
    system("pause");
    return 0;
}