https://www.luogu.org/problemnew/show/P2420 异或满足 A ^ B = B ^ A A ^ A = 0 0 ^ A = A #include <cstdio> #include <iostream> using namespace std; ; #define yxy getchar() #define RR freopen("gg.in", "r", stdin) , head[N], A[N];…
Given a non-empty array of numbers, a0, a1, a2, … , an-1, where 0 ≤ ai < 231. Find the maximum result of ai XOR aj, where 0 ≤ i, j < n. Could you do this in O(n) runtime? Example: Input: [3, 10, 5, 25, 2, 8] Output: 28 Explanation: The maximum resul…
Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 5646 Accepted: 1226 Description In an edge-weighted tree, the xor-length of a path p is defined as the xor sum of the weights of edges on p: ⊕ is the xor operator. We say a path the xor-l…
测试环境: 操作系统 : Red Hat Enterprise Linux ES release 4 (Nahant Update 4) VMWARE 数据库 : Oracle Database 10g Release 10.2.0.4.0 - Production 简要介绍,一台服务器A位于虚拟机VMWARE上,由于测试需要,在VMWARE上克隆了该系统作为服务器B,过了一段时间,由于数据变更,需要将服务器A上的ORACLE数据库还原恢复到服务器B上.…