随笔分类 -  leetcode

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leetcode 32. Longest Valid Parentheses
摘要：Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the lo 阅读全文
posted @ 2016-08-05 12:50 冰凌花花～ 阅读(136) 评论(1) 推荐(0)
leetcode 70. Climbing Stairs
摘要：You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you cl 阅读全文
posted @ 2016-08-02 12:44 冰凌花花～ 阅读(124) 评论(0) 推荐(0)
leetcode 300. Longest Increasing Subsequence
摘要：Given an unsorted array of integers, find the length of longest increasing subsequence. For example,Given [10, 9, 2, 5, 3, 7, 101, 18],The longest inc 阅读全文
posted @ 2016-08-02 12:39 冰凌花花～ 阅读(582) 评论(0) 推荐(0)
leetcode 53. Maximum Subarray
摘要：Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array [−2,1,−3,4,−1,2, 阅读全文
posted @ 2016-08-02 11:28 冰凌花花～ 阅读(124) 评论(0) 推荐(0)
leetcode 215. Kth Largest Element in an Array
摘要：Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element. For exam 阅读全文
posted @ 2016-07-29 12:33 冰凌花花～ 阅读(221) 评论(0) 推荐(0)
leetcode 82. Remove Duplicates from Sorted List II
摘要：Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list. For example,Given 1->2 阅读全文
posted @ 2016-07-28 14:57 冰凌花花～ 阅读(129) 评论(0) 推荐(0)
leetcode 86. Partition List
摘要：Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x. You should preserve the 阅读全文
posted @ 2016-07-28 13:07 冰凌花花～ 阅读(131) 评论(0) 推荐(0)
leetcode 62. Unique Paths
摘要：A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below). The robot can only move either down or right at any p 阅读全文
posted @ 2016-07-27 10:07 冰凌花花～ 阅读(179) 评论(0) 推荐(0)
leetcode 345. Reverse Vowels of a String
摘要：Write a function that takes a string as input and reverse only the vowels of a string. Example 1:Given s = "hello", return "holle". Example 2:Given s 阅读全文
posted @ 2016-07-26 14:47 冰凌花花～ 阅读(119) 评论(0) 推荐(0)
leetcode 344. Reverse String
摘要：Write a function that takes a string as input and returns the string reversed. Example:Given s = "hello", return "olleh". 第一次使用的是string来做，从后往前遍历输入的str 阅读全文
posted @ 2016-07-26 11:56 冰凌花花～ 阅读(180) 评论(0) 推荐(0)
leetcode 88. Merge Sorted Array
摘要：Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array. Note:You may assume that nums1 has enough space (size tha 阅读全文
posted @ 2016-07-25 20:31 冰凌花花～ 阅读(109) 评论(0) 推荐(0)
leetcode 83. Remove Duplicates from Sorted List
摘要：Given a sorted linked list, delete all duplicates such that each element appear only once. For example,Given 1->1->2, return 1->2.Given 1->1->2->3->3, 阅读全文
posted @ 2016-07-25 19:36 冰凌花花～ 阅读(189) 评论(0) 推荐(0)
leetcode 7. Reverse Integer
摘要：Reverse digits of an integer. Example1: x = 123, return 321Example2: x = -123, return -321 click to show spoilers. Have you thought about this? Here a 阅读全文
posted @ 2016-07-24 22:51 冰凌花花～ 阅读(173) 评论(0) 推荐(0)
leetcode 26. Remove Duplicates from Sorted Array
摘要：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 fo 阅读全文
posted @ 2016-07-22 17:38 冰凌花花～ 阅读(148) 评论(0) 推荐(0)

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