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Add Two Numbers leetcode java
题目:You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a sin....
分类:编程语言   时间:2014-07-24 10:01:23    阅读次数:223
Longest Consecutive Sequence
Given an unsorted array of integers, find the length of the longest consecutive elements sequence.For example, Given [100, 4, 200, 1, 3, 2], The lo...
分类:其他好文   时间:2014-07-24 00:49:07    阅读次数:200
poj 3292 Semi-prime H-numbers
题目链接:http://poj.org/problem?id=3292 题目大意:就是给你一个模4余1的数H-number,如果一个H-number是H-primes 当且仅当它的因子只有1和它本身(除1外)。一个H-number是H-semi-prime当且仅当它只由两个H-primes的乘积表示。H-number剩下其他的数均为H-composite。给你一个数h,问1到h有多少个H-sem...
分类:其他好文   时间:2014-07-23 22:38:17    阅读次数:302
Two Sum
1.hashMap方法O(n)空间换时间public class Solution { public int[] twoSum(int[] numbers, int target) { HashMap hash=new HashMap(); int ans[]=ne...
分类:其他好文   时间:2014-07-23 22:20:57    阅读次数:262
[leetcode]Next Permutation
Next PermutationImplement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers.If such arrangemen...
分类:其他好文   时间:2014-07-23 20:34:45    阅读次数:206
LeetCode:Decode Ways
A message containing letters from A-Z is being encoded to numbers using the following mapping: 'A' -> 1 'B' -> 2 ... 'Z' -> 26 Given an encoded message containing digits, determine the total numb...
分类:其他好文   时间:2014-07-23 17:06:05    阅读次数:324
[leetcode]Add Two Numbers
Add Two NumbersYou are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes co...
分类:其他好文   时间:2014-07-23 16:51:51    阅读次数:251
HDU1711 最基础的kmp算法
Problem DescriptionGiven two sequences of numbers : a[1], a[2], ...... , a[N], and b[1], b[2], ...... , b[M] (1 2 #include 3 using namespace std; 4 .....
分类:其他好文   时间:2014-07-23 12:27:06    阅读次数:252
【leetcode刷题笔记】Remove Duplicates from Sorted List II
Given a sorted linked list, delete all nodes that have duplicate numbers, leaving onlydistinctnumbers from the original list.For example,Given1->2->3-...
分类:其他好文   时间:2014-07-23 12:20:16    阅读次数:205
OJ1 Two Sum
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 nu...
分类:其他好文   时间:2014-07-23 12:03:26    阅读次数:287
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