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…

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…

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…

                                                                     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, …

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…

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…

Katu Puzzle Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 9987   Accepted: 3741 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…

题目 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) such that…

Description 给出一个关系,包括 And,Xor,Or 问是否存在解. Sol 经典的2-SAT问题. 把每个值看成两个点,一个点代表选 \(0\) ,另一个代表选 \(1\) . 首先来看 Xor : 如果两个值异或起来为 \(1\) :那么连边 \((i_0,j_1),(i_1,j_0),(j_0,i_1),(j_1,i_0)\) . 否则 连边 \((i_0,j_0),(i_1,j_1),(j_0,i_0),(j_1,i_1)\) . 然后是 And. 如果两个值 And 起来为…

题目链接 题意:给出a, b, c 和操作类型 (与或异或),问是否满足所有的式子 主要是建图: 对于 and , c == 1: 说明 a 和 b都是1,那么 0 就不能取, a' -> a , b' - > b ,因为 a 和 a'是对立事件,对于 a' - >a说明,a'如果成立,那么a也一定存在,显然这是不可能的所以a'不会 成立的. c == 0 说明 a 和 b不全为1, a' -> b , b' -> a 对于 or,  c == 1 :说明 a 和 b 不全为…