Factorial Trailing ZeroesGiven an integern, return the number of trailing zeroes inn!.Note:Your solution should be in logarithmic time complexity.思路:不...
分类:
其他好文 时间:
2015-01-15 15:57:13
阅读次数:
158
LeetCode172——Factorial Trailing Zeroes
Given an integer n, return the number of trailing zeroes in n!.
Note: Your solution should be in logarithmic time complexity.
难度系数:容易
题目大意:给定一个整数n,...
分类:
其他好文 时间:
2015-01-13 01:27:55
阅读次数:
142
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:
2015-01-12 22:25:47
阅读次数:
451
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:
2015-01-12 14:25:06
阅读次数:
126
题目:
Given an integer n, return the number of trailing zeroes in n!.
Note: Your solution should be in logarithmic time complexity.
思路:
我们要计算 N! 中有多少个后导0.
我们来找一下规律,考虑n!的质数因子。后缀0,只有可能是质因子2...
分类:
编程语言 时间:
2015-01-11 16:16:18
阅读次数:
272
题目描述:给出一个integer n,计算n!结尾0的个数题目分析:考虑暴力,计算n!统计最后面0的个数。先不说数字溢出,其次n是一个integer ,O(n)复杂度超时我们接着考虑,产生0的情况只有包含因子5的数乘以一个偶数会在结尾产生0(5*2,15*2,75*2),因为偶数的个数大于因子包含5...
分类:
其他好文 时间:
2015-01-10 18:09:03
阅读次数:
162
https://oj.leetcode.com/problems/factorial-trailing-zeroes/publicclassSolution{
publicinttrailingZeroes(intn){
if(n<=0)
return0;//Invalidinput.
//Howmany5s,25s,125s...
intbase=5;
intfives=0;
do
{
fives+=n/d;
base*=5;
}
while(base<=n);
returnfives;
}
}
分类:
其他好文 时间:
2015-01-09 19:29:55
阅读次数:
171
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:
2015-01-09 00:00:03
阅读次数:
531
Given an integer n, return the number of trailing zeroes in n!.
Note: Your solution should be in logarithmic time complexity.
Credits:
Special thanks to @ts for adding this problem and creating all...
分类:
编程语言 时间:
2015-01-07 23:42:23
阅读次数:
401
本文是在学习中的总结,欢迎转载但请注明出处:http://blog.csdn.net/pistolove/article/details/42417535
Given an integer n, return the number of trailing zeroes in n!.
Note: Your solution should be in logarithmic...
分类:
其他好文 时间:
2015-01-06 10:06:32
阅读次数:
122