比赛 2024暑假C班集训A 评测结果 AAAAAAAAAA
题目名称 牧场的安排 最终得分 100
用户昵称 darkMoon 运行时间 0.032 s
代码语言 C++ 内存使用 3.42 MiB
提交时间 2024-07-10 09:14:19
显示代码纯文本
#include<bits/stdc++.h>
#define int long long
using namespace std;
// #define fin cin
// #define fout cout
ifstream fin("cowfood.in");
ofstream fout("cowfood.out");
auto mread = [](){int x;fin >> x;return x;};
const int N = 20, M = 5005, MOD = 1e8;
int n = mread(), m = mread(), a[N][N], f[N][M];
signed main(){
    for(int i = 1; i <= n; i ++){
        for(int j = 0; j < m; j ++){
            a[i][j] = mread();
        }
    }
    int ma = (1 << m);
    f[0][0] = 1;
    for(int i = 1; i <= n; i ++){
        for(int j = 0; j < ma; j ++){
            int e = 1;
            for(int k = 0; k < m; k ++){
                if(((j >> k) & 1) && !a[i][k]){
                    e = 0;
                    break;
                }
                if(k < m - 1){
                    if(((j >> k) & 1) && ((j >> k + 1) & 1)){
                        e = 0;
                        break;
                    }
                }
            }
            if(e == 0){
                continue;
            }
            int tmp = (ma - 1) ^ j;
            for(int k = tmp; k; --k &= tmp){
                (f[i][j] += f[i - 1][k]) %= MOD;
            }
            (f[i][j] += f[i - 1][0]) %= MOD;
            // cout << i << " " << (bitset<5>)j << " " << f[i][j] << "\n";
        }
    }
    int ans = 0;
    for(int i = 0; i < ma; i ++){
        (ans += f[n][i]) %= MOD;
    }
    fout << ans;
    return 0;
}