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 ...
分类：
其他好文 时间：
2020-02-25 00:00:16
阅读次数：
59
LeetCode 1362. Closest Divisors最接近的因数【Medium】【Python】【数学】 Problem "LeetCode" Given an integer , find the closest two integers in absolute difference w ...
分类：
编程语言 时间：
2020-02-23 20:17:07
阅读次数：
90
题目： Given a binary tree, find the length of the longest path where each node in the path has the same value. This path may or may not pass through the ...
分类：
编程语言 时间：
2020-02-23 19:56:52
阅读次数：
92
LeetCode 1358. Number of Substrings Containing All Three Characters包含所有三种字符的子字符串数目【Medium】【Python】【双指针】【滑窗】 Problem "LeetCode" Given a string consisti ...
分类：
编程语言 时间：
2020-02-23 11:20:46
阅读次数：
84
LeetCode 0034. Find First and Last Position of Element in Sorted Array在排序数组中查找元素的第一个和最后一个位置【Medium】【Python】【二分】 Problem "LeetCode" Given an array of i ...
分类：
编程语言 时间：
2020-02-23 09:45:30
阅读次数：
68
题目： Given a string containing only three types of characters: '(', ')' and '*', write a function to check whether this string is valid. We define the ...
分类：
编程语言 时间：
2020-02-22 23:46:53
阅读次数：
104
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 ...
分类：
移动开发 时间：
2020-02-22 17:20:15
阅读次数：
109
You are given a square board of characters. You can move on the board starting at the bottom right square marked with the character 'S'. You need to r ...
分类：
其他好文 时间：
2020-02-22 13:33:15
阅读次数：
59
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 ...
分类：
其他好文 时间：
2020-02-22 00:41:15
阅读次数：
83
题目： In this problem, a tree is an undirected graph that is connected and has no cycles. The given input is a graph that started as a tree with N nodes ...
分类：
编程语言 时间：
2020-02-21 22:42:00
阅读次数：
81
