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Leetcode:Climbing Stairs 斐波那契数
戳我去解题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 ...
分类:其他好文   时间:2014-05-15 01:55:06    阅读次数:251
Series Determination
Series Determination                                                                       题目描述 Boudreaux and Thibodeaux aren't very good at math, so they need you to write a program that can de...
分类:其他好文   时间:2014-05-15 01:28:56    阅读次数:313
Leetcode 线性表 Two Sum
题意:给定一组数和另一个数,在这组数中找两个数,使它们的和等于给定的数 思路1: --> 错,因为题目要求返回下标。 1.排序 2.两个下标,一个指向头,一个指向尾 3.如果下标指向的两个元素相加大于给定的数,尾下标减一 如果小于,头下标加一 思路2: hash 1.用hash存储每个数的下标 2.数组,看hash[target-num[i]]是否存在 复杂度:时间O(n), 空间O(n)...
分类:其他好文   时间:2014-05-15 01:28:13    阅读次数:297
POJ 1002 487-3279
Description Businesses like to have memorable telephone numbers. One way to make a telephone number memorable is to have it spell a memorable word or phrase. For example, you can call the Universit...
分类:其他好文   时间:2014-05-15 00:20:39    阅读次数:332
LeetCode--Linked List Cycle
Linked List Cycle  Total Accepted: 17148 Total Submissions: 49300My Submissions Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra sp...
分类:其他好文   时间:2014-05-15 00:13:50    阅读次数:279
【LeetCode】- Two Sum(两数相加)
[ 问题: ] Given an array of integers, find two numbers such that they add up to a specific target number. The function twoSum should return indices of the two numbers such that they add up to the ta...
分类:其他好文   时间:2014-05-15 00:04:39    阅读次数:377
hdu 1867 A + B for you again
题目:     链接:...
分类:其他好文   时间:2014-05-14 23:53:03    阅读次数:482
【LeetCode】Linked List Cycle
Linked List CycleGiven a linked list, determine if it has a cycle in it.Follow up:Can you solve it without using extra space?做完Linked List Cycle II在做这...
分类:其他好文   时间:2014-05-14 23:30:00    阅读次数:399
Multiply Strings
Given two numbers represented as strings, return multiplication of the numbers as a string.Note: The numbers can be arbitrarily large and are non-nega...
分类:其他好文   时间:2014-05-14 23:11:14    阅读次数:398
Linux 高性能服务器编程——高级I/O函数
重定向dup和dup2函数[cpp] view plaincopyprint?#includeintdup(intfile_descriptor);intdup2(intfile_descriptor_one,intfile_descriptor_two);dup创建一个新的文件描述符, 此描述符和...
分类:系统相关   时间:2014-05-14 22:34:09    阅读次数:479
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