高精度
by 金庆涵 @ 2020-04-11 15:30:37
@[金庆涵](/user/177878) 不用，longlong就行
by 老子是北瓜 @ 2020-04-11 15:32:13
@[金庆涵](/user/177878) 高精了，依旧
https://www.luogu.com.cn/record/32676369
by 帅皮的瓜粉 @ 2020-04-11 15:33:49
不是高精，开long long说错了233
by 帅皮的瓜粉 @ 2020-04-11 15:34:06
@[老子是白菜](/user/121813)
by 帅皮的瓜粉 @ 2020-04-11 15:34:14
```cpp
#include<bits/stdc++.h>
using namespace std;
char m[1000][1000];
long long s=0;
long long a,b,c,d;
long long t[1000][1000];
int dfs(int x,int y)
{
if(x==0&&y==0)
{
return 1;
}
if(x<0||y<0)return 0;
if(m[x][y])return 0;
if(t[x][y]==0)
{
t[x][y]=dfs(x-1,y)+dfs(x,y-1);
}
return t[x][y];
}
int main()
{
scanf("%d%d%d%d",&a,&b,&c,&d);
m[c][d]=1;
m[c-2][d-1]=1;
m[c-2][d+1]=1;
m[c-1][d+2]=1;
m[c-1][d-2]=1;
m[c+2][d+1]=1;
m[c+2][d-1]=1;
m[c+1][d+2]=1;
m[c+1][d-2]=1;
printf("%d",dfs(a,b));
return 0;
}
```
by 帅皮的瓜粉 @ 2020-04-11 15:34:25
唉，我都不会C++，怎么会这么难的题啊
by Luban @ 2020-04-11 15:49:02
但是你没开ull
by Luban @ 2020-04-11 15:49:17
@[可爱小鲁班](/user/113600) ？？？,ull是什么
by 帅皮的瓜粉 @ 2020-04-11 15:50:06
@[可爱小鲁班](/user/113600) 橙名巨佬帮帮我吧，不然我作业就完不成了qwq
by 帅皮的瓜粉 @ 2020-04-11 15:50:27