1. 题目描述 Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it can trap after raining ...
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2021-02-18 13:31:34
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1. 题目描述 You are given an n x n 2D matrix representing an image, rotate the image by 90 degrees (clockwise). You have to rotate the image in-place, whi ...
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2021-02-18 13:08:31
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1. 题目描述 Given an array nums of distinct integers, return all the possible permutations. You can return the answer in any order. 2. Examples 示例1： Input ...
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2021-02-18 13:07:50
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题目描述 For this problem, you will write a program that reads in a sequence of 32-bit signed integers. After each odd-indexed value is read, output the m ...
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2021-02-18 13:06:04
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The K Weakest Rows in a Matrix (E) 题目 Given a m * n matrix mat of ones (representing soldiers) and zeros (representing civilians), return the indexes ...
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2021-02-18 13:02:33
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Given an array of non negative integers, return the maximum sum of elements in two non overlapping (contiguous) subarrays, which have lengths and . (F ...
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2021-02-18 12:53:23
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Given an increasing sequence S of N integers, the median is the number at the middle position. For example, the median of S1 = { 11, 12, 13, 14 } is 1 ...
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2021-02-17 14:40:27
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We are given a matrix with rows and columns has cells with integer coordinates , where?`0 这道题给了一个R行C列的矩阵，又给了一个起始点 (r0, c0)，让按照离起始点的曼哈顿距离从小到大排序坐标点。博主最先 ...
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2021-02-17 14:32:03
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A company is planning to interview people. Given the array where ,?the cost of flying the person to city is , and the cost of flying the person to cit ...
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2021-02-17 14:20:21
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1047 Student List for Course Zhejiang University has 40,000 students and provides 2,500 courses. Now given the registered course list of each student, ...
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2021-02-17 14:09:06
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