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项目介绍 一款简单快速构建后台管理系统前后端的框架,基于 Spring Boot、 Spring Boot Jpa、 Spring Security、JWT、Redis、Elasticsearch、Vue.js、Element-UI等目前主流技术栈。 项目源码 前端源码 后端源码 Github Ra 阅读全文
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描述 Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers. If such arrangement is not pos 阅读全文
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描述 Given an array nums, write a function to move all 0's to the end of it while maintaining the relative order of the non zero elements. Note: 1.You m 阅读全文
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描述 Given an array and a value, remove all instances of that value in place and return the new length. Do not allocate extra space for another array, y 阅读全文
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描述 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 w 阅读全文
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描述 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 intege 阅读全文
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描述 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 阅读全文
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描述 Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have 阅读全文
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描述 Given an unsorted array of integers, find the length of the longest consecutive elements sequence. Your algorithm should run in O(n) complexity. 示例 阅读全文
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描述 Follow up for "Remove Duplicates": What if duplicates are allowed at most twice? 示例 <! more 算法分析 难度 :中 分析 :条件参考Remove Duplicates算法,只不过之前元素只允许重复1次,现 阅读全文
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描述 Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space 阅读全文