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【Leetcode刷题】240.Search a 2D Matrix II 搜索二维矩阵 II Link: leetcode240 Link: 力扣240 问题描述 相关Topics: Binary Search 二分查找，Divide and Conquer 分治算法 Write an efficient algorithm that searches for a target value in an m x n integer matrix. The matrix has the following p

【Leetcode刷题】277. Find the Celebrity 搜寻名人 Link: leetcode277 （English version, 中文站需会员） 问题描述 相关Topics: Array, 贪心算法 Suppose you are at a party with n people (labeled from 0 to n - 1), and among them, there may exist one celebrity. The definition of a celebrity