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摘要: Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find all unique quadruplets in the array whic 阅读全文
posted @ 2017-11-10 19:01 hozhangel 阅读(153) 评论(0) 推荐(0) 编辑
摘要: Given a digit string, return all possible letter combinations that the number could represent. A mapping of digit to letters (just like on the telepho 阅读全文
posted @ 2017-11-10 17:15 hozhangel 阅读(247) 评论(0) 推荐(0) 编辑
摘要: Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. 阅读全文
posted @ 2017-11-10 16:26 hozhangel 阅读(178) 评论(0) 推荐(0) 编辑
摘要: 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 阅读全文
posted @ 2017-11-09 20:11 hozhangel 阅读(314) 评论(0) 推荐(0) 编辑
摘要: https://leetcode.com/problems/longest-common-prefix/description/ Write a function to find the longest common prefix string amongst an array of strings 阅读全文
posted @ 2017-11-08 20:36 hozhangel 阅读(173) 评论(0) 推荐(0) 编辑
摘要: Given a roman numeral, convert it to an integer. Input is guaranteed to be within the range from 1 to 3999. leetcode上已有的解决方法: 1、https://leetcode.com/p 阅读全文
posted @ 2017-11-08 20:06 hozhangel 阅读(109) 评论(0) 推荐(0) 编辑
摘要: Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. 罗马数字: 基本字符 I V X L C D M 相应的阿拉伯数字表示为 1 5 1 阅读全文
posted @ 2017-11-08 19:21 hozhangel 阅读(264) 评论(0) 推荐(0) 编辑
摘要: 2017-11-07 21:58:22 https://leetcode.com/problems/container-with-most-water/description/ Given n non-negative integers a1, a2, ..., an, where each rep 阅读全文
posted @ 2017-11-08 18:52 hozhangel 阅读(189) 评论(0) 推荐(0) 编辑
摘要: Implement regular expression matching with support for '.' and '*'. '.' Matches any single character. '*' Matches zero or more of the preceding elemen 阅读全文
posted @ 2017-11-07 21:32 hozhangel 阅读(191) 评论(0) 推荐(0) 编辑
摘要: notepad++快捷键 数据结构相关问题 机器学习面试1000题..(知乎用户:七月在线) PCA SVM详细介绍 HMM KNN 张量 强化学习 K-Means EM算法 图片 segmentation 机器学习性能评估指标 逻辑回归的常见面试点总结 Machine Learning - Log 阅读全文
posted @ 2017-11-07 16:11 hozhangel 阅读(160) 评论(0) 推荐(0) 编辑
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