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#leetcode#Kth Smallest Element in a BST
Given a binary search tree, write a function kthSmallest to find the kth smallest element in it. Note:  You may assume k is always valid, 1 ≤ k ≤ BST's total elements. Follow up: What if the...
分类:其他好文   时间:2015-07-02 10:09:45    阅读次数:110
Leetcode 230 Kth Smallest Element in a BST
Given a binary search tree, write a functionkthSmallestto find thekth smallest element in it.Note:You may assume k is always valid, 1 ≤ k ≤ BST's tota...
分类:其他好文   时间:2015-07-02 09:53:05    阅读次数:128
Leetcode 215 Kth Largest Element in an Array
1. 问题描述  找出数组中第k大的数,注意:数组为无序数组。   2. 方法与思路  是一道经典算法题。解法也有好几种,一种是先进行排序,然后取出第k大的数;由于排序算法最快效率为O(nlogn)O(nlogn),所以整体效率为O(nlogn)O(nlogn)。二是使用优先队列,SLT中有优先队列的用法,内部是以堆的方式实现。时间效率也比较高,O(nlogn)O(nlogn)。   class...
分类:其他好文   时间:2015-06-29 10:19:30    阅读次数:97
LeetCode——Kth Largest Element in an Array
Description:Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct eleme...
分类:其他好文   时间:2015-06-26 00:19:23    阅读次数:113
LeetCode——Pascal's Triangle II
Description:Given an index k, return the kth row of the Pascal's triangle.For example, given k = 3, Return [1,3,3,1].public class Solution { public...
分类:其他好文   时间:2015-06-19 22:58:21    阅读次数:172
【LeetCode 215】Kth Largest Element in an Array
Find thekth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element.For exampl...
分类:其他好文   时间:2015-06-16 14:43:22    阅读次数:161
Kth Largest Element in an Array
【重要的事情写在前面】先来说说swap的实现方式,这道题我本来自己写了个swap的算法,除了通常的swap(type& a, type& b){ type t = a; a = b; b = a;}的写法外,还有一种【极客】写法:swap(type& a, type& b){ a ^= b;...
分类:其他好文   时间:2015-06-14 15:06:14    阅读次数:131
Leetcode[215]-Kth Largest Element in an Array
Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element.For example, Given[3,2,1,5,6,4]and k = 2, return 5.Note:...
分类:其他好文   时间:2015-06-14 09:34:25    阅读次数:120
Java for LeetCode 215 Kth Largest Element in an Array【Coming Soon】
Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element.For examp...
分类:编程语言   时间:2015-06-09 23:30:58    阅读次数:237
计算第k个质因数只能为3,5,7的数
英文描述:Design an algorithm to find the kth number such that the only prime factorsare 3, 5, and 7思路:质因数只能为3,5,7,设这个数为val,则val = (3^i)(5^j)(7^n) (i,j,n>=...
分类:其他好文   时间:2015-06-09 19:35:03    阅读次数:92
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