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Merge Sort
Good for array and linked list. Stable Sort.Time Complexity: Best, Average, Worst => O(nlogn);Space Complexity: O(n), in-place merge sort makes it ver...
分类:其他好文   时间:2015-01-04 13:25:46    阅读次数:156
O(n^2) Sortings
Insertion Sort:Time Complexity: Best O(n) (when already sorted); Average O(n^2); Worst O(n^2).Space Complexity: O(1) public static void main(String...
分类:其他好文   时间:2015-01-04 11:15:10    阅读次数:249
Left Shift Array with O(l) time complexity and O(1) space complexity
Algorithm 1:public static void main(String[] args) { int[] a = new int[]{1,2,3,4,5,6,7,8,9,10,11,12}; shiftN2(a, 1); System.ou...
分类:其他好文   时间:2015-01-04 07:37:58    阅读次数:159
Factorial Trailing Zeroes (divide and conquer)
QUESTIONGiven an integer n, return the number of trailing zeroes in n!.Note: Your solution should be in logarithmic time complexity.FIRST TRYclass Sol...
分类:其他好文   时间:2015-01-03 19:49:18    阅读次数:178
Leetcode: Factorial Trailing Zeroes
Given an integer n, return the number of trailing zeroes in n!. Note: Your solution should be in logarithmic time complexity. 解析: 只有2和5相乘才会出现0,其中整十也可以看做是2和5相乘的结果,所以,可以在n之前看看有多少个2以及多少个5就行了,又发现2的数量...
分类:其他好文   时间:2015-01-02 22:28:57    阅读次数:213
Factorial Trailing Zeroes
Given an integern, return the number of trailing zeroes inn!.Note:Your solution should be in logarithmic time complexity.类似于cc:http://www.cnblogs.com/...
分类:其他好文   时间:2014-12-31 08:40:38    阅读次数:193
[leetcode] Minimum WIndow
题目:(HashTable Two Point String)Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity ...
分类:Windows程序   时间:2014-12-31 07:36:09    阅读次数:177
[leetcode] Factorial Trailing Zeroes
题目:(Math)Given an integern, return the number of trailing zeroes inn!.Note:Your solution should be in logarithmic time complexity.题解:首先列几个例子找一找规律。然后发现...
分类:其他好文   时间:2014-12-30 23:26:41    阅读次数:170
HappyLeetcode39:Factorial Trailing Zeroes
Given an integer n, return the number of trailing zeroes in n!. Note: Your solution should be in logarithmic time complexity. 这个是我的代码,但是超时 class Solut...
分类:移动开发   时间:2014-12-30 22:06:15    阅读次数:169
LeetCode Factorial Trailing Zeroes
Given an integern, return the number of trailing zeroes inn!.Note:Your solution should be in logarithmic time complexity.Credits:Special thanks to@tsf...
分类:其他好文   时间:2014-12-30 22:01:42    阅读次数:107
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