codewars--js--Number of trailing zeros of N!

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codewars--js--Number of trailing zeros of N!

问题描述: Write a program that will calculate the number of trailing zeros in a factorial of a given number. N! = 1 * 2 * 3 * ... * N Be careful 1000! has 2568 digits... For more info, see: http://mathworld.wolfram.com/Factorial.html Examples zeros(6) =…

Trailing Zeros

Write an algorithm which computes the number of trailing zeros in n factorial. Have you met this question in a real interview? Yes Example 11! = 39916800, so the out should be 2 /* * param n: As desciption * return: An integer, denote the number of t…

lintcode ：Trailing Zeros 尾部的零

题目: 尾部的零设计一个算法,计算出n阶乘中尾部零的个数样例 11! = 39916800,因此应该返回 2 挑战 O(logN)的时间复杂度解题: 常用方法: 也许你在编程之美中看到,通过求能够被2 整除和能够被5整除个数的最小值就是答案,或者直接求能够被5整除的个数就是答案<能够被5整除的数显然比较小>,但是在这里,java python都试了,结果都会出现运行超时或者越界的问题. 维基百科中有如下计算方法: Java程序: class Solution { /* * param n…

[LeetCode] Factorial Trailing Zeros

Well, to compute the number of trailing zeros, we need to first think clear about what will generate a trailing 0? Obviously, a number multiplied by 10 will have a trailing 0 added to it. So we only need to find out how many 10's will appear in the e…

2. Trailing Zeros【easy】

2. Trailing Zeros[easy] Write an algorithm which computes the number of trailing zeros in n factorial. Have you met this question in a real interview? Yes Example 11! = 39916800, so the out should be 2 Challenge O(log N) time 解法一: class Solution { /*…

[Algorithm] 2. Trailing Zeros

Description Write an algorithm which computes the number of trailing zeros in n factorial. Example 11! = 39916800, so the out should be 2 Challenge O(log N) time Answer /* * @param n: A long integer * @return: An integer, denote the number of trailin…