bzoj3678 Katu Puzzle

【bzoj3678 Katu Puzzle】的更多相关文章

题目链接题意给定一张图,对于每条边给出一个运算符\((\&,|,\otimes)\)和一个值\(c(0 \le c \le 1)\).问能否通过给每个点赋上一个值.使得每条边通过指定的运算都能得到指定的值. 思路 \(2-sat\)问题,需要注意的是当两数\(\&\)起来为\(1\)时.必须全部为\(1\),所以就从每个点的\(0\)向\(1\)连边.同理,当两数\(|\)起来为\(0\)时,必须全部为\(0\),所以就从每个点的\(1\)向\(0\)连边. 代码 /* * @Auth…

poj3678 Katu Puzzle 2-SAT

Katu Puzzle Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 6714 Accepted: 2472 Description Katu Puzzle is presented as a directed graph G(V, E) with each edge e(a, b) labeled by a boolean operator op (one of AND, OR, XOR) and an integ…

poj 3678 Katu Puzzle(2-sat)

Description Katu Puzzle ≤ c ≤ ). One Katu ≤ Xi ≤ ) such that for each edge e(a, b) labeled by op and c, the following formula holds: Xa op Xb = c The calculating rules are: AND 0 1 0 0 0 1 0 1 OR 0 1 0 0 1 1 1 1 XOR 0 1 0 0 1 1 1 0 Given a Katu Puzzl…

POJ 3678 Katu Puzzle（2 - SAT） - from lanshui_Yang

Description Katu Puzzle is presented as a directed graph G(V, E) with each edge e(a, b) labeled by a boolean operator op (one of AND, OR, XOR) and an integer c (0 ≤ c ≤ 1). One Katu is solvable if one can find each vertex Vi a value Xi (0 ≤ Xi ≤ 1) s…

POJ 3678 Katu Puzzle （2-SAT）

Katu Puzzle Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 11429 Accepted: 4233 Description Katu Puzzle is presented as a directed graph G(V, E) with each edge e(a, …

POJ 3678 Katu Puzzle （经典2-Sat）

Katu Puzzle Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 6553 Accepted: 2401 Description Katu Puzzle is presented as a directed graph G(V, E) with each edge e(a, b) labeled by a boolean operator op (one of AND, OR, XOR) and an integ…

poj 3678 Katu Puzzle 2-SAT 建图入门

Description Katu Puzzle is presented as a directed graph G(V, E) with each edge e(a, b) labeled by a boolean operator op (one of AND, OR, XOR) and an integer c (0 ≤ c ≤ 1). One Katu is solvable if one can find each vertex Vi a value Xi (0 ≤ Xi ≤ 1) s…