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LeetCode Contains Duplicate III
LeetCode Contains Duplicate III题目思路我的方法是先用一个结构体,存下每个数字的值和其原坐标; 然后根据值大小排序; 接着遍历每一个数字num[i].val; 利用二分查找找到刚好比num[i].val - t - 1大的数字的坐标; 然后根据坐标判断是否存在值即可; 关于二分查找可见:Binary Search代码struct num { int p...
分类:其他好文   时间:2015-06-06 09:09:47    阅读次数:96
Contains Duplicate II
https://leetcode.com/problems/contains-duplicate-ii/Given an array of integers and an integerk, find out whether there there are two distinct indicesi...
分类:其他好文   时间:2015-06-06 00:17:46    阅读次数:165
[LeetCode] Clone Graph
Clone an undirected graph. Each node in the graph contains alabeland a list of itsneighbors.OJ's undirected graph serialization:Nodes are labeled uniq...
分类:其他好文   时间:2015-06-05 12:15:11    阅读次数:112
Contains Duplicate III
Contains Duplicate III问题:Given an array of integers, find out whether there are two distinct indicesiandjin the array such that the difference between...
分类:其他好文   时间:2015-06-05 12:13:12    阅读次数:127
【Clone Graph】cpp
题目:Clone an undirected graph. Each node in the graph contains alabeland a list of itsneighbors.OJ's undirected graph serialization:Nodes are labeled u...
分类:其他好文   时间:2015-06-05 11:33:38    阅读次数:112
LeetCode "Contains Duplicate III"
Lesson learnt: std::multiset is a heap structure supporting random removal...class Solution { public: bool containsNearbyAlmostDuplicate(vec...
分类:其他好文   时间:2015-06-05 08:44:00    阅读次数:129
Rightmost Digit(快速幂)
DescriptionGiven a positive integer N, you should output the most right digit of N^N. InputThe input contains several test cases. The first line of th...
分类:Web程序   时间:2015-06-04 18:50:26    阅读次数:160
[LeetCode-JAVA] Contains Duplicate III
题目:Given an array of integers, find out whether there are two distinct indicesiandjin the array such that the difference betweennums[i]andnums[j]is at...
分类:编程语言   时间:2015-06-04 15:18:12    阅读次数:181
leetcode—217 Contains Duplicate(包含重复的数)
解题思路: 起初使用的HashMap,一个for循环,将i与数组中的值nums[i],作为键值对进行存储,如果不重复,存入,如果重复直接返回true。 但是在leetcode的OJ编译时,出现了time limited限制。 随后,查阅资料,此处应该使用HashSet,因为HashMap存储时是对键值对进行存储,如果用一个无穷,不重复的数组进行判断,复杂度与时间消耗是很多的。 而HashSet的好处在于:HashSet实现了Set接口,它不允许集合中有重复的值,在进行存储时,先进行判断,使用conta...
分类:其他好文   时间:2015-06-04 13:56:34    阅读次数:179
数据结构题目
1. 第K个置换序列 set[1,2,3,…,n]contains a total of n! unique permutations.By listing and labeling all of the permutations in order, We get the following se....
分类:其他好文   时间:2015-06-04 13:17:27    阅读次数:260
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