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RSS订阅原创 73. Set Matrix Zeroes［medium
73. Set Matrix Zeroes 题目： Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. 题解： O(m+n)的方法是容易想到的，而空间复杂度O(1)，只要利用原矩阵的一行和一列来使用O(m+n)的方法就行了。
2017-07-08 13:49:06
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原创 leetcode 题解 91. Decode Ways［medium
题目： A message containing letters from A-Z is being encoded to numbers using the following mapping: 'A' -> 1 'B' -> 2 ... 'Z' -> 26 Given an encoded message containing digits, determine the t
2017-07-08 13:39:27
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原创 103. Binary Tree Zigzag Level Order Traversal［medium］
题目： Given a binary tree, return the zigzag level order traversal of its nodes' values. (ie, from left to right, then right to left for the next level and alternate between). For example: Given
2017-07-08 13:05:34
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原创 leetcode题解 132. Palindrome Partitioning II[hard]
题目： Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. For example, given s = "aab",
2017-07-08 12:41:29
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原创 [LeetCode] 3Sum 三数之和[medium]
[LeetCode] 3Sum 三数之和 Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero. No
2017-05-15 15:58:07
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原创 151.Reverse Words in a String[medium]
Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". Update (2015-02-12): For C programmers: Try to solve it in-place in
2017-04-25 21:36:08
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151. Reverse Words in a String[medium]
Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". Update (2015-02-12): For C programmers: Try to solve it in-place in
2017-04-24 16:54:50
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LeetCode 151. Reverse Words in a String [string][medium]
Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". Update (2015-02-12): For C programmers: Try to solve it in-place in
2017-04-16 07:56:28
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LeetCode 151. Reverse Words in a String [string][medium]
Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". Update (2015-02-12): For C programmers: Try to solve it in-place in
2017-04-16 02:18:07
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原创 [编程题] 最大和
在一个N*N的数组中寻找所有横，竖，左上到右下，右上到左下，四种方向的直线连续D个数字的和里面最大的值 输入描述: 每个测试输入包含1个测试用例，第一行包括两个整数 N 和 D : 3 <= N <= 100 1 <= D <= N 接下来有N行，每行N个数字d: 0 输出描述: 输出一个整数，表示找到的和的最大值 输入例子: 4 2 87 98 79 61
2017-04-07 03:05:28
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原创 [编程题] 字符串编码
给定一个字符串，请你将字符串重新编码，将连续的字符替换成“连续出现的个数+字符”。比如字符串AAAABCCDAA会被编码成4A1B2C1D2A。 输入描述: 每个测试输入包含1个测试用例 每个测试用例输入只有一行字符串，字符串只包括大写英文字母，长度不超过10000。 输出描述: 输出编码后的字符串 输入例子: AAAABCCDAA 输出例子: 4
2017-04-06 22:50:17
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原创 LeetCode 495. Teemo Attacking [tag:Array][difficulty:Medium]
题目介绍 In LLP world, there is a hero called Teemo and his attacking can make his enemy Ashe be in poisoned condition. Now, given the Teemo's attacking ascending time series towards Ashe and the poiso
2017-03-02 14:13:31
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LeetCode 495. Teemo Attacking (Tag:Array; Difficulty: Medium)
题目 : In LLP world, there is a hero called Teemo and his attacking can make his enemy Ashe be in poisoned condition. Now, given the Teemo's attacking ascending time series towards Ashe and the pois
2017-03-02 11:51:25
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