Codeforces Round #602 (Div. 2, based on Technocup 2020 Elimination Round 3)
A.Math Problem（CF 1262 A） 题目大意：给定n条线段，求一条线段，使得这个线段能够跟所有给定的线段都相交（端点值一样也算相交），最小化它的长度，可以是0. 很显然找出这n条线 ...
原文：Codeforces Round #602 (Div. 2, based on Technocup 2020 Elimination Round 3)
Codeforces Round Div. , based on Technocup Elimination Round A. Math Problem 题意：有t组数据，每组数据给出n个范围 Li,Ri ，求与n个范围都有交集的最小范围 Ans L,Ans R 的长度 L,R 的长度定义为R L 思路：这个区间只要从所有区间右端点的最小值覆盖到所有区间左端点的最大值即可。 View Code B ...
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