BZOJ 1725: [Usaco2006 Nov]Corn Fields牧场的安排

状压DP

#include<cstdio>
using namespace std;
const int mod=1e8;
int n,m,a[15][15],F[15][10005];
void memse(int x){for (int i=0; i<(1<<m); i++)if (F[x][i]){for (int j=0; j<m; j++)    if (!a[x][j] && i&(1<<j)) F[x][i]=0;}
}
int main(){scanf("%d%d",&n,&m);for (int i=0; i<n; i++)for (int j=0; j<m; j++)scanf("%d",&a[i][j]);for (int i=0; i<(1<<m); i++) if (!(i&(i>>1))) F[0][i]=1;for (int i=0; i<n; i++){memse(i);for (int pre=0; pre<(1<<m); pre++)if (F[i][pre])for (int now=0; now<(1<<m); now++)if (!(now&(now>>1)) && !(now&pre)) (F[i+1][now]+=F[i][pre])%=mod;}int ans=0;for (int i=0; i<(1<<m); i++) (ans+=F[n-1][i])%=mod;printf("%d\n",ans);return 0;
}

转载于:https://www.cnblogs.com/silenty/p/9869089.html

BZOJ 1725: [Usaco2006 Nov]Corn Fields牧场的安排相关推荐

bzoj:1725: [Usaco2006 Nov]Corn Fields牧场的安排
Description Farmer John新买了一块长方形的牧场,这块牧场被划分成M列N行(1<=M<=12; 1<=N<=12),每一格都是一块正方形的土地.FJ打算在牧 ...
【BZOJ】1725: [Usaco2006 Nov]Corn Fields牧场的安排
[算法]状压DP [题解]对于上一行的每个状态,每行进行DFS. #include<cstdio> #include<algorithm> #include<cstrin ...
BZOJ 1662: [Usaco2006 Nov]Round Numbers 圆环数（数位DP+恶心细节）
BZOJ 1662: [Usaco2006 Nov]Round Numbers 圆环数 Time Limit: 5 Sec Memory Limit: 64 MB Description 正如你所知 ...
BZOJ 1724: [Usaco2006 Nov]Fence Repair 切割木板
题目 1724: [Usaco2006 Nov]Fence Repair 切割木板 Time Limit: 5 Sec Memory Limit: 64 MB Description Farmer ...
bzoj 1726: [Usaco2006 Nov]Roadblocks第二短路（A*第k短路）
1726: [Usaco2006 Nov]Roadblocks第二短路 Time Limit: 5 Sec Memory Limit: 64 MB Submit: 1324 Solved: 627 ...
bzoj 1662: [Usaco2006 Nov]Round Numbers 圆环数（枚举）
1662: [Usaco2006 Nov]Round Numbers 圆环数 Time Limit: 5 Sec Memory Limit: 64 MB Submit: 413 Solved: 2 ...
bzoj 1661: [Usaco2006 Nov]Big Square 巨大正方形（枚举）
1661: [Usaco2006 Nov]Big Square 巨大正方形 Time Limit: 5 Sec Memory Limit: 64 MB Submit: 467 Solved: 23 ...
bzoj 1660: [Usaco2006 Nov]Bad Hair Day 乱发节（单调栈）
1660: [Usaco2006 Nov]Bad Hair Day 乱发节 Time Limit: 2 Sec Memory Limit: 64 MB Submit: 1180 Solved: 5 ...
牛客假日团队赛5 F 随机数 BZOJ 1662: [Usaco2006 Nov]Round Numbers 圆环数（dfs记忆化搜索的数位DP）...
链接:https://ac.nowcoder.com/acm/contest/984/F 来源:牛客网随机数时间限制:C/C++ 1秒,其他语言2秒空间限制:C/C++ 32768K,其他语言6 ...

BZOJ 1725: [Usaco2006 Nov]Corn Fields牧场的安排

BZOJ 1725: [Usaco2006 Nov]Corn Fields牧场的安排相关推荐

最新文章

热门文章