唐宋元明清201712151935887

数据结构

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全部文章 / 数据结构（共3篇）

HDU - 2795 Billboard（线段树）

At the entrance to the university, there is a huge rectangular billboard of size h*w (h is its height and w is its width). The board is the place wher...

2019-01-20

0 538

CodeForces - 1042D Petya and Array （树状数组+离散化）

Petya has an array aa consisting of nn integers. He has learned partial sums recently, and now he can calculate the sum of elements on any segment of ...

2018-12-02

0 889

沈阳网络赛 J题 Ka Chang （树状数组+dfs序+分块思想）

Given a rooted tree ( the root is node 11 ) of NN nodes. Initially, each node has zero point. Then, you need to handle QQ operations. There're two ty...

2018-09-11

0 482