CF527 ABCDE

发布时间：2020-12-13 20:07:09 所属栏目：PHP教程来源：网络整理

导读：XGG Blog CF527A Playing with Paper CF527B Error Correct System CF527C Glass Carving CF527D Clique Problem CF527E Data Center Drama CF527A Playing with Paper Divide. Code CF527B Error Correct System Greedy. Code CF527C Glass Carving O ( n l

XGG Blog

CF527A Playing with Paper
CF527B Error Correct System
CF527C Glass Carving
CF527D Clique Problem
CF527E Data Center Drama

CF527A Playing with Paper

Divide.

Code

CF527B Error Correct System

Greedy.

Code

CF527C Glass Carving

$O(n log n)$ : use stl set and upper_bound.
$O(n)$ : solve the problem from the last query to the first.

Code

CF527D Clique Problem

Find the maximum set of intervals which are not intersect with each other. Sort the intervals by their right position and choose them greedily.

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CF527E Data Center Drama

Eulerian Cycle.

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（编辑：李大同）

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