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A + B Again 2057 有符号的64进位的运算
Problem DescriptionThere must be many A + B problems in our HDOJ , now a new one is coming.Give you two hexadecimal integers , your task is to calcula...
分类:其他好文   时间:2015-07-05 16:23:22    阅读次数:125
有序数组去重2--Remove Duplicates from Sorted Array II
https://leetcode.com/problems/remove-duplicates-from-sorted-array-ii/Remove Duplicates from Sorted Array IIFollow up for "Remove Duplicates":What if d...
分类:编程语言   时间:2015-07-05 12:19:38    阅读次数:131
归并有序数组--Merge Sorted Array
https://leetcode.com/problems/merge-sorted-array/Merge Sorted ArrayGiven two sorted integer arraysnums1andnums2, mergenums2intonums1as one sorted arra...
分类:编程语言   时间:2015-07-05 12:19:06    阅读次数:127
删除有序数组重复项1--Remove Duplicates from Sorted Array
https://leetcode.com/problems/remove-duplicates-from-sorted-array/Remove Duplicates from Sorted ArrayGiven a sorted array, remove the duplicates in pl...
分类:编程语言   时间:2015-07-05 10:59:32    阅读次数:118
Leetcode:Container With Most Water
转载请注明本文地址:http://blog.csdn.net/yangnanhai93 Leetcode题目链接地址:https://leetcode.com/problems/container-with-most-water/ 暴力的方式还是很简单的,O(n^2)可以完成,任意两个的组合都是可以解决这个问题的,但是,仔细想想,可以发现,题目还是有规律的。 算法的思路是选择...
分类:其他好文   时间:2015-07-05 09:46:32    阅读次数:96
Leetcode:Palindrome Number
题目出处:https://leetcode.com/problems/palindrome-number/ 题目:Determine whether an integer is a palindrome. Do this without extra space. 翻译:判断一个整型数是否是回文数 思路:将整型数转化为字符串,依次比较首尾 代码: public class Solution...
分类:其他好文   时间:2015-07-04 14:08:01    阅读次数:171
leetcode | Path Sum
Path Sum :https://leetcode.com/problems/path-sum/ 解析:求根到叶节点路径上所有节点的和等于target的值 即判断是否存在 一个叶节点的值等于target;如何判断一个节点是叶节点:该节点本身非空,左右节点为空。/** * Definition for a binary tree node. * struct TreeNode { *...
分类:其他好文   时间:2015-07-03 17:33:57    阅读次数:109
leetcode | Path Sum II
Path Sum II : https://leetcode.com/problems/path-sum-ii/ 解析: 和上一题的区别就是,要记录所有能满足条件的路径。 要保存当前的结果,并且每次递归后都要恢复递归前的结果;每当递归到叶子节点时,判断是否需要当前结果(path)保存下来。 叶节点时 sum == 0, 保存当前结果,然后逐步恢复递归前结果 叶节点时 sum != 0,不保...
分类:其他好文   时间:2015-07-03 17:29:20    阅读次数:115
leetcode | Balanced Binary Tree
Balanced Binary Tree : https://leetcode.com/problems/balanced-binary-tree/given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary...
分类:其他好文   时间:2015-07-03 15:51:33    阅读次数:118
8 String to Integer (atoi)
8 String to Integer (atoi)链接:https://leetcode.com/problems/string-to-integer-atoi/ 问题描述: Implement atoi to convert a string to an integer.Hint: Carefully consider all possible input cases. If you wa...
分类:其他好文   时间:2015-07-03 14:03:32    阅读次数:105
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