06 2017 档案
摘要：Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000. Example: Example:
阅读全文
摘要：Given a string, find the length of the longest substring without repeating characters. Examples: Given "abcabcbb", the answer is "abc", which the leng
阅读全文
摘要：Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets must close in the
阅读全文
摘要：Given an array of strings, group anagrams together. For example, given: ["eat", "tea", "tan", "ate", "nat", "bat"], Return: Note: All inputs will be i
阅读全文
摘要：The count-and-say sequence is the sequence of integers with the first five terms as following: 1 is read off as "one 1" or 11.11 is read off as "two 1
阅读全文
摘要：Given an arbitrary ransom note string and another string containing letters from all the magazines, write a function that will return true if the rans
阅读全文
摘要：Write a function that takes a string as input and returns the string reversed.
阅读全文
摘要：Implement strStr(). Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. 非常容易的一道题目，注意各种特殊情况，先列举出c
阅读全文
摘要：Given a sorted integer array without duplicates, return the summary of its ranges. For example, given [0,1,2,4,5,7], return ["0->2","4->5","7"]. 这个题目不
阅读全文
摘要：Given an array of n integers where n > 1, nums, return an array output such that output[i] is equal to the product of all the elements of nums except
阅读全文
摘要：Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpo
阅读全文
摘要：Given an integer array of size n, find all elements that appear more than ⌊ n/3 ⌋ times. The algorithm should run in linear time and in O(1) space. 第一
阅读全文
摘要：Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times. You may assume that the
阅读全文
摘要：Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive), prove that at least one duplicate number must exist.
阅读全文
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
摘要：Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers. If such arrangement is not possib
阅读全文
摘要：Given a collection of intervals, merge all overlapping intervals. For example,Given [1,3],[2,6],[8,10],[15,18],return [1,6],[8,10],[15,18]. 思路 本题要合并重叠
阅读全文
摘要：在北邮人论坛上看到一个关于找机器学习相关工作的经验帖，很有感悟。其中提到了数据结构与算法的重要性，很有感悟。 敬录如下： 算法bug free能力要极强，面试算法题不难，所以这个能力很重要。如果自己的背景实力不行，项目不行，那就先刷他三四遍leetcode。切记，bug free。 算法的另外一个考
阅读全文
浙公网安备 33010602011771号