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每日算法之三十一:Combination Sum
给定一个整数序列,求解一个子序列,子序列之和等于给定目标值。子序列满足以下条件: 1)子序列是有序的 2)子序列的元素个数不限,可以是给定元素的重复元素。 3)结果中的子序列是唯一的 原题描述如下: Given a set of candidate numbers (C) and a target number (T), find all unique combinations ...
分类:其他好文   时间:2014-06-11 06:26:03    阅读次数:302
leetcode - Maximum Depth of Binary Tree
题目:Maximum Depth of Binary TreeGiven a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the ro...
分类:其他好文   时间:2014-06-10 10:09:13    阅读次数:237
【Leetcode】Max Points on a Line
Givennpoints on a 2D plane, find the maximum number of points that lie on the same straight line.每次固定一个点,然后遍历所有其它点,记录每种斜率出现的次数。需要考虑两种特殊情况:斜率不存在和点与固定点重...
分类:其他好文   时间:2014-06-10 08:44:57    阅读次数:164
Leetcode:Longest Common Prefix 最长公共前缀
戳我去解题Write a function to find the longest common prefix string amongst an array of strings.class Solution {public: string longestCommonPrefix(vecto...
分类:其他好文   时间:2014-06-10 08:29:55    阅读次数:189
Leetcode::Longest Common Prefix && Search for a Range
一次总结两道题,两道题目都比较基础Description:Write a function to find the longest common prefix string amongst an array of strings.分析: 这道题目最重要的知道什么叫prefix前缀, 否则一不小心就做...
分类:其他好文   时间:2014-06-09 21:08:16    阅读次数:224
[cc150] 硬币问题
Given an infinite number of quarters (25 cents), dimes (10 cents), nickels (5 cents) and pennies (1 cent), find how many ways to represent n cents.思路:...
分类:其他好文   时间:2014-06-09 20:04:56    阅读次数:238
[leetcode]Combination Sum @ Python
原题地址:https://oj.leetcode.com/problems/combination-sum/题意:Given a set of candidate numbers (C) and a target number (T), find all unique combinations in...
分类:编程语言   时间:2014-06-09 17:50:09    阅读次数:333
LeetCode:Substring with Concatenation of All Words
You are given a string, S, and a list of words, L, that are all of the same length. Find all starting indices of substring(s) in S that is a concatena...
分类:其他好文   时间:2014-06-09 17:49:34    阅读次数:240
[leetcode]First Missing Positive @ Python
原题地址:https://oj.leetcode.com/problems/first-missing-positive/题意:Given an unsorted integer array, find the first missing positive integer.For example,G...
分类:编程语言   时间:2014-06-09 17:44:43    阅读次数:980
[leetcode]Combination Sum II @ Python
原题地址:https://oj.leetcode.com/problems/combination-sum-ii/题意:Given a collection of candidate numbers (C) and a target number (T), find all unique combi...
分类:编程语言   时间:2014-06-09 17:41:58    阅读次数:320
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