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leetcode题目：Search a 2D Matrix II 问题描述如下： Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: Integers in each row are sorted in asc
2017-03-04 15:30:04
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原创 记录数据中重复数字问题
问题描述如下： Given an array of integers, 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once. Find all the elements that appear twice in this array. Could you do
2017-02-25 16:20:13
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