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Problem : You are given two non empty linked lists representing two non negative integers. The digits are stored in reverse order and each of their no 阅读全文
posted @ 2020-03-27 17:02
littledy
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Problem : Implement strStr(). Return the index of the first occurrence of needle in haystack, or 1 if needle is not part of haystack. Example 1: Examp 阅读全文
posted @ 2020-03-26 00:20
littledy
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Problem : Given an array nums and a value val, remove all instances of that value in place and return the new length. Do not allocate extra space for 阅读全文
posted @ 2020-03-25 23:56
littledy
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Problem : Given a sorted array nums, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate 阅读全文
posted @ 2020-03-25 23:42
littledy
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Problem : Determine whether an integer is a palindrome. An integer is a palindrome when it reads the same backward as forward. Example 1: Example 2: E 阅读全文
posted @ 2020-03-25 22:40
littledy
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Problem : Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string 阅读全文
posted @ 2020-03-25 21:53
littledy
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Problem : Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists 阅读全文
posted @ 2020-03-25 21:15
littledy
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什么是Linux 两层含义： 一种是Linus Benedict Torvalds编写的开源操作系统的内核 另一种是广义的操作系统 执行环境： 云主机 无数据的PC（不推荐多系统混跑） 虚拟机（推荐方式） 版本 内核版本 内核版本分为三个部分：主版本号、次版本号、末版本号；次版本号是奇数为开发版，偶 阅读全文
posted @ 2020-03-07 12:49
littledy
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Problem : Given a non empty string s and a dictionary wordDict containing a list of non empty words, determine if s can be segmented into a space sepa 阅读全文
posted @ 2020-02-21 21:48
littledy
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Problem : 思路 ： 用DP算法。状态方程为： Solution (C++) : 性能 ： Runtime: 8 ms Memory Usage: 8.9 MB 阅读全文
posted @ 2020-02-18 20:33
littledy
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