12 2016 档案

LeetCode 88 Merge Sorted Array
摘要：Problem: 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 阅读全文
posted @ 2016-12-31 13:42 SillyVicky 阅读(130) 评论(0) 推荐(0)
LeetCode 27 Remove Element
摘要：Problem: 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 ar 阅读全文
posted @ 2016-12-30 11:35 SillyVicky 阅读(85) 评论(0) 推荐(0)
LeetCode 26 Remove Duplicates from Sorted Array
摘要：Problem: 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 阅读全文
posted @ 2016-12-30 11:11 SillyVicky 阅读(129) 评论(0) 推荐(0)
LeetCode 448 Find All Numbers Disappeared in an Array
摘要：Problem: Given an array of integers where 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once. Find all the elements o 阅读全文
posted @ 2016-12-30 09:20 SillyVicky 阅读(1593) 评论(0) 推荐(0)
LeetCode 219 Contains Duplicate II
摘要：Problem: Given an array of integers and an integer k, find out whether there are two distinct indices i and j in the array such that nums[i] = nums[j] 阅读全文
posted @ 2016-12-29 11:26 SillyVicky 阅读(141) 评论(0) 推荐(0)
LeetCode 118 Pascal's Triangle
摘要：Problem: Given numRows, generate the first numRows of Pascal's triangle. For example, given numRows = 5,Return Summary: 输出杨辉三角的前n行。 Solution: 方法类似于Lee 阅读全文
posted @ 2016-12-29 01:24 SillyVicky 阅读(169) 评论(0) 推荐(0)
LeetCode 119 Pascal's Triangle II
摘要：Problem: Given an index k, return the kth row of the Pascal's triangle. For example, given k = 3,Return [1,3,3,1]. Note:Could you optimize your algori 阅读全文
posted @ 2016-12-28 12:19 SillyVicky 阅读(180) 评论(0) 推荐(0)
LeetCode 1 Two Sum
摘要：Problem: 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 woul 阅读全文
posted @ 2016-12-28 09:18 SillyVicky 阅读(129) 评论(0) 推荐(0)
LeetCode 414 Third Maximum Number
摘要：Problem: Given a non-empty array of integers, return the third maximum number in this array. If it does not exist, return the maximum number. The time 阅读全文
posted @ 2016-12-28 09:08 SillyVicky 阅读(177) 评论(0) 推荐(0)
LeetCode 459 Repeated Substring Pattern
摘要：Problem: Given a non-empty string check if it can be constructed by taking a substring of it and appending multiple copies of the substring together. 阅读全文
posted @ 2016-12-28 05:28 SillyVicky 阅读(921) 评论(0) 推荐(0)
LeetCode 455 Assign Cookies
摘要：Problem: Assume you are an awesome parent and want to give your children some cookies. But, you should give each child at most one cookie. Each child 阅读全文
posted @ 2016-12-18 12:07 SillyVicky 阅读(285) 评论(0) 推荐(0)
LeetCode 463 Island Perimeter
摘要：Problem: You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizo 阅读全文
posted @ 2016-12-16 12:58 SillyVicky 阅读(220) 评论(0) 推荐(0)
LeetCode 409 Longest Palindrome
摘要：Problem: Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those lett 阅读全文
posted @ 2016-12-16 05:57 SillyVicky 阅读(603) 评论(0) 推荐(0)
LeetCode 404 Sum of Left Leaves
摘要：Problem: Find the sum of all left leaves in a given binary tree. Summary: 求左子叶之和。 Analysis： 1. 求左子叶之和，即需要遍历整棵二叉树，常规的方法则为递归。首先我想到的是调用子函数，在子函数中递归，每递归至一个 阅读全文
posted @ 2016-12-16 05:42 SillyVicky 阅读(170) 评论(0) 推荐(0)