Description 题库链接 给你一个 \(0,1\) 矩阵,只准你在 \(1\) 上放物品:并且要满足物品不能相邻.允许空放,问方案数,取模. \(1\leq n,m\leq 12\) Solution 状压 \(DP\) . 记 \(f_{i,t}\) 为处理到第 \(i\) 行时放物品的状态为 \(t\) 的方案数. 若第 \(i\) 行的 \(1\) 的状态为 \(a\) .显然由于必须放在 \(1\) 上,所以 \(a~and~t = a\) ,其中 \(and\) 为按位与:并且…

USACO 2006 November Gold Corn Fields 题目描述: Farmer John has purchased a lush new rectangular pasture composed of M by N square parcels. He wants to grow some yummy corn for the cows on a number of squares. Regrettably, some of the squares are infertil…

洛谷 P1879 [USACO06NOV]玉米田Corn Fields 洛谷传送门 题目描述 Farmer John has purchased a lush new rectangular pasture composed of M by N (1 ≤ M ≤ 12; 1 ≤ N ≤ 12) square parcels. He wants to grow some yummy corn for the cows on a number of squares. Regrettably, som…

Corn Fields Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 9806   Accepted: 5185 Description Farmer John has purchased a lush new rectangular pasture composed of M by N (1 ≤ M ≤ 12; 1 ≤ N ≤ 12) square parcels. He wants to grow some yumm…

http://poj.org/problem?id=3254 Corn Fields Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 9118   Accepted: 4843 Description Farmer John has purchased a lush new rectangular pasture composed of M by N (1 ≤ M ≤ 12; 1 ≤ N ≤ 12) square parc…

Corn Fields Time Limit: 2000MS Memory Limit: 65536K Description Farmer John has purchased a lush new rectangular pasture composed of M by N (1 ≤ M ≤ 12; 1 ≤ N ≤ 12) square parcels. He wants to grow some yummy corn for the cows on a number of squares.…

http://poj.org/problem?id=3254 Corn Fields Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 7588   Accepted: 4050 Description Farmer John has purchased a lush new rectangular pasture composed of M by N (1 ≤ M ≤ 12; 1 ≤ N ≤ 12) square parc…

Corn Fields Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 8062   Accepted: 4295 Description Farmer John has purchased a lush new rectangular pasture composed of M by N (1 ≤ M ≤ 12; 1 ≤ N ≤ 12) square parcels. He wants to grow some yumm…

Corn Fields Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 16909 Accepted: 8939 Description Farmer John has purchased a lush new rectangular pasture composed of M by N (1 ≤ M ≤ 12; 1 ≤ N ≤ 12) square parcels. He wants to grow some yummy c…

Corn Fields 2015-11-25 13:42:33 Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 10658   Accepted: 5602 Description Farmer John has purchased a lush new rectangular pasture composed of M by N (1 ≤ M ≤ 12; 1 ≤ N ≤ 12) square parcels. He wa…