传入两个变量l和r, 表示当前节点表示的线段。 cpp voidpushUp(ll p){sum[p] = sum[lc(p)] + sum[rc(p)];}voidbuild(ll p, ll l, ll r){if(l == r){sum[p] = a[l];return;}ll mid = (l + r) >>1;build(lc(p), l, mid);build(rc(p), mid +1, r);pushUp(p);} 区间...
CLRS/other/segmentTree.cpp Go to file Copy path Cannot retrieve contributors at this time 79 lines (67 sloc)2.21 KB RawBlame #include<iostream> #include<vector> usingnamespacestd; structSegmentTreeNode{ intstart, end, sum; SegmentTreeNode *left, *right; ...
} TNode, *SegmentTree; typedefstructQNode{ /*队列的结点结构,队列用于层序遍历线段树*/ TNode* ptr2TNode; structQNode*next; } QNode, *Queue; SegmentTreebuild(int* arr,intl,intr); voidinOrder(SegmentTree T); voidpreOrder(SegmentTree T); voidpostOrder(SegmentTree T); voidlevelOrder(Segment...
cpp 考点: 线段树 题解: 线段树为二叉树,如果查询区间位于当前区间之中,返回max值即可,如果超出范围,返回极小值即可,继续向左右搜索。 /** * DefinitionofSegmentTreeNode: * class SegmentTreeNode { * public: * intstart,end,max; * SegmentTreeNode *left, *right; * SegmentTreeNode(intstart, intend,...
DynamicSegmentTree 徒影**徒影上传cpp DynamicSegmentTree是一种基于平衡二叉树的动态线段树,它的主要特点是在插入、删除和查询操作时,不需要遍历整个线段树,只需要遍历到需要更新的节点即可。这种数据结构可以有效地减少树的深度,提高查询和更新的效率。 DynamicSegmentTree的基本思想是将线段树分为两部分,一部分是叶子...
我花了几天打算自己写一个zero-copy的版本, 使用boost里现成的managed_shared_memory和interprocess_semphore, container/vector等库, 但压力测试一直有问题, 有的传100多笔数据就出错,有的500多笔数据出错, 都是boost低层的rbtree之类的内存布局出错,调不下去,所以放弃自己写,而寻找开源的实现。
test.cpp: In function ‘int main()’: test.cpp:19: error: no matching function for call to ‘set_intersection(std::_Rb_tree_const_iterator<int>, std::_Rb_tree_const_iterator<int>, std::_Rb_tree_const_iterator<int>, std::_Rb_tree_const_iterator<int>)’ 我从这个错误中了解到,在...
This is the benchmark, along with the four segment tree implementations I checked and a prefix sum for comparison.↵ ↵ <spoiler summary="Benchmark code">↵ ```cpp↵ #include <iostream>↵ #include <random>↵ #include <ctime>↵ ...
SegTreeNode* root = new SegTreeNode(0, n-1); init(root, 0, n-1);for (auto & building : buildings) sort(buildings.begin(), buildings.end(), [](vector<int>&a, vector<int>&b){return a[2]<b[2];});for (auto & building: buildings) ...
AVL treeto balance tree. Magiccally, the addtional functions arevery independentwith our old code. Here is some functions we need to add, it is not different from AVL tree: intlink(intll,intu,intrr){Left[u]=ll,Right[u]=rr;returnupdate(u),u;}intright_rotate(intu){intll=Left[u]...