做项目时经常遇到树状层级数据.从各个层级数据的转换查询等.场景如行业类别的多层级,行政区层级,检查项类别层级等等. 数据结构如 Id Name ParentId #region area树状节点的转化 public List<Area> ConvertToLeafChildAreas(List<int> areaIds) { var allAreas = GetNewAreas().ToList(); List<Area> leafChildren = new Lis
借用学长的活:60种颜色是突破口(我咋不知道QAQ) 好像这几道都是线段树+dfs序??于是你可以把60种颜色压进一个long long 里,然后向上合并的时候与一下(太妙了~) 所以记得开long long (又调了一个半小时...打代码只花了20分钟???) #include<cstdio> #include<iostream> #define ll long long #define R register int #define ls (tr<<1) #defin
Apple Tree Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 18623 Accepted: 5629 Description There is an apple tree outside of kaka's house. Every autumn, a lot of apples will grow in the tree. Kaka likes apple very much, so he has been
Turing Tree Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4948 Accepted Submission(s): 1746 Problem Description After inventing Turing Tree, 3xian always felt boring when solving problems a
Apple Tree Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 26762 Accepted: 7947 Description There is an apple tree outside of kaka's house. Every autumn, a lot of apples will grow in the tree. Kaka likes apple very much, so he has been
Apple Tree Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 27470 Accepted: 8140 Description There is an apple tree outside of kaka's house. Every autumn, a lot of apples will gr
Apple Tree Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 16180 Accepted: 4836 Description There is an apple tree outside of kaka's house. Every autumn, a lot of apples will grow in the tree. Kaka likes apple very much, so he has been
C. Propagating tree Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/383/problem/C Description Iahub likes trees very much. Recently he discovered an interesting tree named propagating tree. The tree consists of n nodes numb
The Query on the Tree Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 57 Accepted Submission(s): 20 Problem Description 度度熊近期沉迷在和树有关的游戏了.他一直觉得树是最奇妙的数据结构. 一天他遇到这样一个问题: 有一棵树,树的每一个点有点权,每次有三种操作:
Fenwick Tree Input The first line of input contains two integers NN, QQ, where 1≤N≤50000001≤N≤5000000 is the length of the array and 0≤Q≤50000000≤Q≤5000000 is the number of operations. Then follow QQ lines giving the operations. There are two types o