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Leetcode:Interleaving String 解题报告
Interleaving StringGiven s1, s2, s3, find whether s3 is formed by the interleaving of s1 and s2.For example,Given:s1 = "aabcc",s2 = "dbbca",When s3 = ...
分类:其他好文   时间:2014-12-27 21:40:23    阅读次数:326
LintCode-O(1) Check Power of 2
Using O(1) time to check whether an integer n is a power of 2.ExampleFor n=4, return trueFor n=5, return falseChallengeO(1) timeAnalysis:Use bit manip...
分类:其他好文   时间:2014-12-27 06:44:21    阅读次数:179
LeetCode Problem 9:Palindrome Number回文数
描述:Determine whether an integer is a palindrome. Do this without extra space.Some hints:Could negative integers be palindromes? (ie, -1)If you are thi...
分类:其他好文   时间:2014-12-24 19:57:39    阅读次数:127
[LeetCode]Symmetric Tree
【题目】 Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center). For example, this binary tree is symmetric: 1 / 2 2 / \ / 3 4 4 3...
分类:其他好文   时间:2014-12-24 10:00:49    阅读次数:181
Interview-Increasing Sequence with Length 3.
Given an array, determine whether there are three elements A[i],A[j],A[k], such that A[i]A[twoLen]) return true; 9 if (twoLen!=-1 && A[i]>...
分类:其他好文   时间:2014-12-24 06:25:20    阅读次数:202
NYOJ130 同样的雪花 【Hash】
同样的雪花时间限制:1000ms | 内存限制:65535KB难度:4描写叙述You may have heard that no two snowflakes are alike. Your task is to write a program to determine whether this ...
分类:其他好文   时间:2014-12-23 18:59:22    阅读次数:155
算法导论学习笔记(3)-习题2.3-7-排序+二分
question(题意): Describe a O(n lg(n))-time algorithm that, given a set S of n integers and another integer x, determines whether or not there exist two elements in S whose sum is exactly x. 设计一个O(n ...
分类:编程语言   时间:2014-12-23 09:05:46    阅读次数:239
Leetcode Palindrome Number
Determine whether an integer is a palindrome. Do this without extra space.对于这道题不能用额外的空间,即不能用一个数组来保存各个位数,因此对于这种问题可以采用判断两头数字的方法 1 package Palindrome.Num...
分类:其他好文   时间:2014-12-22 22:42:10    阅读次数:167
leetcode------Symmetric Tree
标题:Symmetric Tree通过率:31.1%难度:简单Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center).For example, this binary ...
分类:其他好文   时间:2014-12-21 23:18:31    阅读次数:226
【LeetCode】Palindrome Number
Palindrome NumberDetermine whether an integer is a palindrome. Do this without extra space.click to show spoilers.Some hints:Could negative integers b...
分类:其他好文   时间:2014-12-21 22:00:15    阅读次数:131
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