yawenw

2020年2月24日

摘要： 1 """ 2 Given a positive integer n, find the least number of perfect square numbers (for example, 1, 4, 9, 16, ...) which sum to n. 3 Example 1: 4 Inp 阅读全文

posted @ 2020-02-24 22:42 yawenw 阅读(146) 评论(0) 推荐(0) 编辑

leetcode480 Sliding Window Median

摘要： 1 """ 2 Median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value. So the median is the mean of 阅读全文

posted @ 2020-02-24 17:41 yawenw 阅读(116) 评论(0) 推荐(0) 编辑

leetcode295 Find Median from Data Stream

摘要： 1 """ 2 Median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value. So the median is the mean of 阅读全文

posted @ 2020-02-24 16:23 yawenw 阅读(188) 评论(0) 推荐(0) 编辑

2020年2月23日

leetcode424 Longest Repeating Character Replacement

摘要： 1 """ 2 Given a string s that consists of only uppercase English letters, you can perform at most k operations on that string. 3 In one operation, you 阅读全文

posted @ 2020-02-23 20:12 yawenw 阅读(145) 评论(0) 推荐(0) 编辑

2020年2月22日

leetcode209 Minimum Size Subarray Sum

摘要： 1 """ 2 Given an array of n positive integers and a positive integer s, find the minimal length of a contiguous subarray of which the sum ≥ s. If ther 阅读全文

posted @ 2020-02-22 19:56 yawenw 阅读(103) 评论(0) 推荐(0) 编辑

leetcode713 Subarray Product Less Than K

摘要： 1 """ 2 Your are given an array of positive integers nums. 3 Count and print the number of (contiguous) subarrays where the product of all the element 阅读全文

posted @ 2020-02-22 18:14 yawenw 阅读(160) 评论(0) 推荐(0) 编辑

leetcode42 Trapping Rain Water

摘要： 1 """ 2 Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after 阅读全文

posted @ 2020-02-22 17:10 yawenw 阅读(126) 评论(0) 推荐(0) 编辑

2020年2月21日

leetcode16 3Sum Closest

摘要： 1 """ 2 Given an array nums of n integers and an integer target, find three integers in nums such that the sum is closest to target. Return the sum of 阅读全文

posted @ 2020-02-21 22:34 yawenw 阅读(125) 评论(0) 推荐(0) 编辑

leetcode844 Backspace String Compare

摘要： 1 """ 2 Given two strings S and T, return if they are equal when both are typed into empty text editors. # means a backspace character. 3 Example 1: 4 阅读全文

posted @ 2020-02-21 22:33 yawenw 阅读(94) 评论(0) 推荐(0) 编辑

leetcode977 Squares of a Sorted Array

摘要： 1 """ 2 Given an array of integers A sorted in non-decreasing order, return an array of the squares of each number, also in sorted non-decreasing orde 阅读全文

posted @ 2020-02-21 22:32 yawenw 阅读(119) 评论(0) 推荐(0) 编辑

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