| 比赛 | 26暑假集训模拟赛2 | 评测结果 | AAAWWWEWEE |
|---|---|---|---|
| 题目名称 | and I am home | 最终得分 | 30 |
| 用户昵称 | rzzakioi | 运行时间 | 0.475 s |
| 代码语言 | C++ | 内存使用 | 3.70 MiB |
| 提交时间 | 2026-07-02 12:46:54 | ||
#include<bits/stdc++.h>
#define int long long
using namespace std;
int a[25]={0,8,44,224,1068,4960,22416,99968,439212,1914208,8264208,35486336,151387792,643320960,724290238,492408309,288582012,419589270,78853442,905109687};
signed main(){
freopen("home.in","r",stdin);
freopen("home.out","w",stdout);
int n;
scanf("%lld",&n);
printf("%lld",a[n]);
return 0;
}