lca
lca简称最近公共祖先——简介在此,不过多赘述
这里主要写的是倍增算法,oi-wiki上用的是vector,由于本人不会,只会用链表,所以这里就放链表的代码了例题加一个数组按倍增数组的方式存距离即可题解——点击查看代码
#include<bits/stdc++.h>
#define int long lon…
参考
https://www.cnblogs.com/joshua317/p/18061002故障现象
kvm虚拟机从一台主机迁移至另外一台主机后启动失败
报错信息如下# Type "journalctl" to view system logs.使用命令查看错误信息
# Failed to mount /sysroot原因分析
CentOS系统启动时出现Failed to mo…
原题链接在这里:https://leetcode.com/problems/pyramid-transition-matrix/description/
题目:
You are stacking blocks to form a pyramid. Each block has a color, which is represented by a single letter. Each row of blocks contains one less block than the row …