随笔分类 -  leetcode

leetcode----------Single Number
摘要：题目Single Number通过率45.1%难度Medium Given an array of integers, every element appearstwiceexcept for one. Find that single one.Note:Your algorithm should ... 阅读全文
posted @ 2015-07-06 20:18 pku_min 阅读(140) 评论(0) 推荐(0)
leetcode----------Merge Sorted Array
摘要：题目Merge Sorted Array通过率30.7%难度EasyGiven two sorted integer arrays A and B, merge B into A as one sorted array.Note:You may assume that A has enough sp... 阅读全文
posted @ 2015-01-19 19:52 pku_min 阅读(124) 评论(0) 推荐(0)
leetcode----------Merge Two Sorted Lists
摘要：题目Merge Two Sorted Lists通过率33.2%难度EasyMerge two sorted linked lists and return it as a new list. The new list should be made by splicing together the ... 阅读全文
posted @ 2015-01-14 11:21 pku_min 阅读(131) 评论(0) 推荐(0)
leetcode----------Majority Element
摘要：题目Majority Element通过率33.8%难度EasyGiven an array of sizen, find the majority element. The majority element is the element that appears more than⌊ n/2 ⌋t... 阅读全文
posted @ 2015-01-13 22:19 pku_min 阅读(152) 评论(0) 推荐(0)
leetcode----------Excel Sheet Column Title
摘要：题目Excel Sheet Column Title通过率17.2%难度EasyGiven a positive integer, return its corresponding column title as appear in an Excel sheet.For example: 1 ... 阅读全文
posted @ 2015-01-11 17:19 pku_min 阅读(155) 评论(0) 推荐(0)
leetcode----------Excel Sheet Column Number
摘要：题目Excel Sheet Column Number通过率40.5%难度EasyRelated to questionExcel Sheet Column TitleGiven a column title as appear in an Excel sheet, return its corre... 阅读全文
posted @ 2015-01-11 16:16 pku_min 阅读(144) 评论(0) 推荐(0)
leetcode----------Pascal's Triangle II
摘要：题目Pascal's Triangle II通过率29.8%难度EasyGiven an indexk, return thekthrow of the Pascal's triangle.For example, givenk= 3,Return[1,3,3,1].Note:Could you o... 阅读全文
posted @ 2015-01-10 10:53 pku_min 阅读(142) 评论(0) 推荐(0)
leetcode----------Pascal's Triangle
摘要：题目Pascal's Triangle通过率30.7%难度EasyGivennumRows, generate the firstnumRowsof Pascal's triangle.For example, givennumRows= 5,Return[ [1], [1,1], ... 阅读全文
posted @ 2015-01-10 10:24 pku_min 阅读(211) 评论(0) 推荐(0)
leetcode----------Climbing Stairs
摘要：You are climbing a stair case. It takesnsteps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb... 阅读全文
posted @ 2015-01-08 11:04 pku_min 阅读(131) 评论(0) 推荐(0)
leetcode----------Balanced Binary Tree
摘要：Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary tree in which the depth... 阅读全文
posted @ 2015-01-08 10:44 pku_min 阅读(148) 评论(0) 推荐(0)
leetcode----------Roman to Integer
摘要：题目Roman to Integer通过率34.2%难度EasyGiven a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999.首先来看一下罗马数字的编... 阅读全文
posted @ 2014-12-24 22:01 pku_min 阅读(198) 评论(0) 推荐(0)
leetcode----------Remove Duplicates from Sorted Array
摘要：题目Remove Duplicates from Sorted Array通过率31.9%难度EasyGiven a sorted array, remove the duplicates in place such that each element appear onlyonceand retu... 阅读全文
posted @ 2014-12-22 16:24 pku_min 阅读(110) 评论(0) 推荐(0)
leetcode----------Remove Duplicates from Sorted List
摘要：题目Remove Duplicates from Sorted List通过率34.4%难度EasyGiven a sorted linked list, delete all duplicates such that each element appear onlyonce.For example... 阅读全文
posted @ 2014-12-21 20:08 pku_min 阅读(114) 评论(0) 推荐(0)
leetcode----------Maximum Depth of Binary Tree
摘要：题目Maximum Depth of Binary Tree通过率44.2%难度EasyGiven a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest pat... 阅读全文
posted @ 2014-12-18 19:49 pku_min 阅读(126) 评论(0) 推荐(0)
leetcode----------Reverse Integer
摘要：题目Reverse Integer通过率34.2%难度EasyReverse digits of an integer.Example1:x = 123, return 321Example2:x = -123, return -321click to show spoilers.Have you ... 阅读全文
posted @ 2014-12-18 12:43 pku_min 阅读(167) 评论(0) 推荐(0)
leetcode----------Binary Tree Level Order Traversal II
摘要：题目 Binary Tree Level Order Traversal II通过率30.6%难度EasyGiven a binary tree, return thebottom-up level ordertraversal of its nodes' values. (ie, from ... 阅读全文
posted @ 2014-12-13 22:54 pku_min 阅读(159) 评论(1) 推荐(0)
leetcode----------Same Tree
摘要：题目Same Tree通过率42.0%难度EasyGiven two binary trees, write a function to check if they are equal or not.Two binary trees are considered equal if they are ... 阅读全文
posted @ 2014-12-13 17:12 pku_min 阅读(160) 评论(0) 推荐(0)
leetcode----------Pow(x, n)
摘要：题目Pow( x, n)通过率26.2%难度MediumImplement pow(x,n). 初步构想：开始拿到题目就以为是简单的求幂运算，一直迭代乘法就可以了，事实证明，想法过于简单！！结果自己给自己挖了个坑，根本没有考虑到数的大小以及溢出的问题，自己默认n为正数了，要注意幂指数为负数的情况是... 阅读全文
posted @ 2014-12-13 16:57 pku_min 阅读(222) 评论(0) 推荐(0)
leetcode-开启刷题之旅
摘要：水平实在太low了，尤其是代码能力，一直以屌丝女程序猿为宏图目标，突然发现只成功了一半-屌丝女。 从今天开始code，每天两道题。 记录于此，以勉于己。 2014.12.12 ... 阅读全文
posted @ 2014-12-12 20:00 pku_min 阅读(159) 评论(2) 推荐(0)