CF Hello2020 D. New Year and Conference
D. New Year and Conference 题意 有\(2n\)个区间，分别为\([sa_1,ea_1],[sb_1,eb_1],[sa_2,ea_2],[sb_2,eb_2],\cdots,[sa_n,ea_n],[sb_n,eb_n]\)，每两个区间为一对，共\(n\)对区间 ...
原文：CF1619D. New Year's Problem
CF D. New Year s Problem 大致题意 Vlad要给 n 个朋友买礼物，有 m 个商店。定义 p ij 为从第 i 个商店给第 j 个朋友买礼物产生的快乐值 由矩阵给出 。定义 为所有朋友的快乐值的最小值。Vlad最多访问 n 个商店，给每一位朋友买一样礼物，问 值最大是多少。 解题思路 二分 遇到这种求最小值最大的题，很快就可以想到使用二分解决。这道题的关键在于考虑判断能否实 ...
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