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factorial
Drazil and
Factorial
(贪心YY)
题目链接:http://codeforces.com/contest/515/problem/C题意:定义了f(a)是正整数a中每一位数字的阶乘之和,求没有1,0数字且最大的b使得f(b)=f(a)思路:可以用数组记录f(a)有哪些因数,而且让b最大,所以可以把非素数的因数分成素数因数,然后从高位到低位输出,有些细节还是要注意。//Accepted31ms4KB #include #include
kalilili
·
2015-02-18 11:00
Drazil and
Factorial
C.Draziland
Factorial
timelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputDrazilisplayingamathgamewithVarda.Let'sdefine
u014355480
·
2015-02-18 10:00
ACM
codeforces
Codeforces Round #292 Div1 A
ProblemDrazilisplayingamathgamewithVarda.Let’sdefineforpositiveintegerxasaproductof
factorial
sofitsdigits.Forexample
UESTC_peterpan
·
2015-02-18 03:00
素数相关
[LeetCode]172.
Factorial
Trailing Zeroes
题目Givenanintegern,returnthenumberoftrailingzeroesinn!.Note:Yoursolutionshouldbeinlogarithmictimecomplexity.分析朴素解法:首先求出n!,然后计算末尾0的个数。(重复÷10,直到余数非0)该解法在输入的数字稍大时就会导致阶乘得数溢出,不足取。O(logn)解法:考虑n!的质数因子。后缀0总是由质
SunnyYoona
·
2015-02-07 20:00
LeetCode
经典面试题
[LeetCode]
Factorial
Trailing Zeroes
Givenaninteger n,returnthenumberoftrailingzeroesin n!.Note: Yoursolutionshouldbeinlogarithmictimecomplexity.解题思路:只有因子2和因子5相乘会产生10,同时因为因子2的数量大于因子5的数量,所以只需看序列中因子5的个数。它可以通过n/5得到,同时序列中还含有25,125,……这样的因子,其数
u011331383
·
2015-02-06 16:00
LeetCode
c语言__n的阶乘
factorial
#includevoid
Factorial
(void){ intn=0,num=1,i=1;start: printf("Pleaseinputnumber:"); scanf_s("%d",&n);
清风白月
·
2015-02-05 14:00
leetcode 172:
Factorial
Trailing Zeroes
Givenaninteger n,returnthenumberoftrailingzeroesin n!.Note: Yoursolutionshouldbeinlogarithmictimecomplexity.Credits:Specialthanksto @ts foraddingthisproblemandcreatingalltestcases.注意时间复杂度public class
刘小米
·
2015-02-03 10:00
HDU2212 DFS【水题】【打表】
32768K(Java/Others)TotalSubmission(s):5692 AcceptedSubmission(s):3520ProblemDescriptionADFS(digital
factorial
sum
u011676797
·
2015-01-30 22:00
[leetcode]
Factorial
Trailing Zeroes
Factorial
TrailingZeroes#include usingnamespacestd; classSolution{ public: inttrailingZeroes(intn){
lydyangliu
·
2015-01-30 15:00
编程之美-不要被阶乘吓到
先来看怎么计算阶乘,当然可以是循环,也可以是递归,上代码:publiclong
factorial
1(intn){ longsum=1; for(inti=1;i=5时,f(n!)=k+f(k!)
My_Jobs
·
2015-01-30 12:00
#
Factorial
Trailing Zeros#
详解:http://www.programmerinterview.com/index.php/java-questions/find-trailing-zeros-in-
factorial
/http:
ChiBaoNeLiuLiuNi
·
2015-01-15 03:00
LeetCode172——
Factorial
Trailing Zeroes
LeetCode172——
Factorial
TrailingZeroesGivenanintegern,returnthenumberoftrailingzeroesinn!.
booirror
·
2015-01-13 00:00
LeetCode
C++
算法
阶乘
[LeetCode]
Factorial
Trailing Zeroes 求阶乘末尾零的个数
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 p
·
2015-01-12 21:00
LeetCode
[C++]LeetCode: 88
Factorial
Trailing Zeroes (阶乘后导零)
题目:Givenaninteger n,returnthenumberoftrailingzeroesin n!.Note: Yoursolutionshouldbeinlogarithmictimecomplexity.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*质因子5得到。如果我们可以计算得到min{num(2),num(5)},就
cinderella_niu
·
2015-01-11 15:00
Math
LeetCode
Majority Element&&
Factorial
Trailing Zeroes
水题两道Givenanarrayofsize n,findthemajorityelement.Themajorityelementistheelementthatappearsmorethan ⌊n/2⌋ times.Youmayassumethatthearrayisnon-emptyandthemajorityelementalwaysexistinthearray.Credits:Spec
liupan1114250779
·
2015-01-10 13:00
[LeetCode]172
Factorial
Trailing Zeroes
https://oj.leetcode.com/problems/
factorial
-trailing-zeroes/public class Solution { public int trailingZeroes
furuijie8679
·
2015-01-09 17:57
LeetCode
递归与迭代
等于1,就可以翻译出如下的代码:int
factorial
(intn){if(n==1){return1;}returnn*
factorial
(n-1);}多么的简洁明了,对于
factorial
(4)可以写出下面的递归过程
艾斯泽
·
2015-01-09 14:00
求100的阶乘各位数之和
int
factorial
_ten(intn); intmain() {
factorial
_ten(100); return0; } int
factorial
_ten(intn) { inti;
hxh88888888
·
2015-01-07 14:00
C语言
LeetCode -
Factorial
Trailing Zeroes
Givenaninteger n,returnthenumberoftrailingzeroesin n!.Note: Yoursolutionshouldbeinlogarithmictimecomplexity.这个要用到数学知识了。参见Wikipedia-TrailingZeroes。Thenumberoftrailingzerosinthe decimalrepresentation o
yuanhsh
·
2015-01-07 10:00
trailing
zeroes
Factorial
Trailing Zeroes
Givenaninteger n,returnthenumberoftrailingzeroesin n!.Note: Yoursolutionshouldbeinlogarithmictimecomplexity.题意:求n!后面有多少个0,尾部这里就不考虑负数和0了,这种情况直接认为0方法1:0只可能是10,4x5,2x5,6x5,...,而实际就是2*5得到一个0,这样就只是求解质因数了,得
凌虚子
·
2015-01-06 15:00
Factorial
digit sum (without BigInteger)
Factorial
digitsumn!means n ×(n −1)×...×3×2×1Forexample,10!
yuanhsh
·
2015-01-06 12:00
SUM
factorial
digit
[置顶] Lettcode_172_
Factorial
Trailing Zeroes
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/42417535Givenaninteger n,returnthenumberoftrailingzeroesin n!.Note: Yoursolutionshouldbeinlogarithmictimecomplexity.思路:(1)题意为求解一个整数
pistolove
·
2015-01-05 22:00
Math
LeetCode
算法
【LeetCode】
Factorial
Trailing Zeroes
n久不做题了,之前因为考研,然后又是假期,一直懒得做,今天开始吧Givenanintegern,returnthenumberoftrailingzeroesinn!.Note:Yoursolutionshouldbeinlogarithmictimecomplexity. 开始没有看到是阶乘,之后又研究复杂度的问题代码如下:class Solution { public: int t
kd2012mvp
·
2015-01-04 22:46
LeetCode
【LeetCode】
Factorial
Trailing Zeroes
n久不做题了,之前因为考研,然后又是假期,一直懒得做,今天开始吧Givenanintegern,returnthenumberoftrailingzeroesinn!.Note:Yoursolutionshouldbeinlogarithmictimecomplexity.开始没有看到是阶乘,之后又研究复杂度的问题代码如下:class Solution {public: int traili
kd2012mvp
·
2015-01-04 22:46
leetcode
Leetcode:
Factorial
Trailing Zeroes
Givenanintegern,returnthenumberoftrailingzeroesinn!.Note:Yoursolutionshouldbeinlogarithmictimecomplexity.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的数量一定多于5的个数,于是我们只看n前面有多少个5就行了,
doc_sgl
·
2015-01-02 21:32
程序员笔试面试
算法与数据结构
Leetcode
LeetCode(172)
Factorial
Trailing Zeroes
题目如下:Givenanintegern,returnthenumberoftrailingzeroesinn!.Note:Yoursolutionshouldbeinlogarithmictimecomplexity.分析如下:看上去简单,但是写出logarithmictimecomplexity的代码还是需要一些思考的。分析在下面的代码注释中。我的代码://88ms classSolution
feliciafay
·
2015-01-02 03:00
LeetCode
python-math模块
数值计算函数math.ceil(x)返回≥x的最小整数math.floor(x)返回≤x的最大整数math.copysign(x,y)返回与y同号的x值math.fabs(x)返回x的绝对值math.
factorial
sherlockzoom
·
2015-01-01 20:00
python
Factorial
Trailing Zeroes
Givenaninteger n,returnthenumberoftrailingzeroesin n!.Note: Yoursolutionshouldbeinpolynomialtimecomplexity.publicclassSolution{ publicinttrailingZeroes(intn){ intcount=0; for(inti=n;i>0;i--){ if(i%5==
havedream_one
·
2014-12-30 10:00
LeetCode
factorial
z
trailing
leetcode 172:
Factorial
Trailing Zeroes
Factorial
TrailingZeroesTotalAccepted:28TotalSubmissions:69Givenanintegern,returnthenumberoftrailingzeroesinn
xudli
·
2014-12-30 09:00
递归和非递归
.*1 -------------------------------------------------- publicint
factorial
(intn){ if(1==n)return1; returnn
Cobbage
·
2014-12-29 22:00
经典递归分析
阶乘(
factorial
)阶乘大家应该都很熟悉了。下面是一些简单例子:2!=2*1=23!=3*2*1=6用一个简单的循环就可以把它写出
国栋
·
2014-12-24 22:00
阶乘
递归
栈
迭代
菲波那契
Project Eluer - 20
Factorial
digitsumProblem20n!meansn×(n−1)×...×3×2×1Forexample,10!
u013647382
·
2014-12-18 12:00
算法
python
欧拉项目
ProjectEluer
阶乘
=1)unsignedlong
Factorial
(intn) { unsigned
cay22
·
2014-12-13 16:00
阶乘
九度OJ 1038 Sum of
factorial
s (模拟)
题目1038:Sumof
Factorial
s时间限制:1秒内存限制:32兆特殊判题:否提交:1491解决:635题目描述: JohnvonNeumann,b.Dec.28,1903,d.Feb.8,1957
wdkirchhoff
·
2014-12-13 15:00
九度OJ
1038
CC150 19.3
19.3 Writeanalgorithmwhichcomputesthenumberoftrailingzerosinn
factorial
.int numOfZerosInNFactory(int n
furuijie8679
·
2014-12-10 13:24
interview
UVA - 568 - Just the Facts (简单数论!)
,readas`` N
factorial
,"denotestheproductofthefirst N positivein
u014355480
·
2014-12-07 21:00
数论
ACM
uva
JavaScript笔记五:函数表达式
1、函数表达式 varfunction=function(){ //函数体 };2、递归 function
factorial
(num){ if(num<=1){return1; }
u010893129
·
2014-12-06 18:00
JavaScript
前端
Web应用
Python math模块
数值计算函数math.ceil(x)返回≥x的最小整数math.floor(x)返回≤x的最大整数math.copysign(x,y)返回与y同号的x值math.fabs(x)返回x的绝对值math.
factorial
Calling_Wisdom
·
2014-12-05 17:13
python
Python
学习笔记
Python math模块
返回≥x的最小整数math.floor(x) 返回≤x的最大整数math.copysign(x,y) 返回与y同号的x值math.fabs(x) 返回x的绝对值math.
factorial
Calling_Wisdom
·
2014-12-05 17:00
python
编写函数计算n的阶乘(n
#includeusingnamespacestd;int
factorial
(inta){intresult=1;for(inti=1;i>n;for(inti=1;i<=n;i++){sum
Erick_Who
·
2014-12-02 16:53
C++
ACM
Art of Programming contest chapters:1-4
4TableofContents1.学习算法注意点2.一些规则3.C字符串处理函数(部分)4.基础数据结构MathematicsPrimeNumberBigIntegerPermutationNumberTheory
Factorial
FibonacciSequencesModulusDynamicProgrammingLonges
wdkirchhoff
·
2014-11-16 21:00
ACM
第12周上机实践项目3——用递归方法求解(求n的阶乘)
*程序输出:他的阶乘 */ #include usingnamespacestd; int
factorial
(intx);
blue_skyrim
·
2014-11-15 21:00
编程
C++
递归
计算机
cpp
BZOJ 1968 AHOI2005 COMMON 约数研究 线性筛
=0则factoral[prime[j]*i]=
factorial
[i]*2cnt[prime[j]*i]=1若i%prime[j]==0则fac
PoPoQQQ
·
2014-11-15 18:00
bzoj
线性筛
BZOJ1968
Linux下如何编译、运行C、C++程序?
例如,假设你有两个源文件main.c和
factorial
.c两个源文件,现在要编译生成
冷月宫主
·
2014-11-07 16:28
C++
Linux
UVa 160 Factors and
Factorial
s
Factorsand
Factorial
sThe
factorial
ofanumber N (written N!)
u013604612
·
2014-11-05 23:00
阶乘
ACM
uva
阶乘算法全集,阶乘末尾非零位,阶末尾零的个数(转)
收藏 举报算法searchpiginsertcinput//阶乘各算法的C++类实现#include#include#include #include usingnamespacestd; class
Factorial
Enjoying_Science
·
2014-10-25 21:00
ACM
C++ primer第五版 练习 6.33
练习 6.33:编写一个递归函数,输出vector对象的内容 #include #include void
factorial
(std::vector&); int main(int argc
piaodonkey
·
2014-10-24 21:16
C++
include
C语言小技巧
/* 求阶乘时设置最大调用层数,防止栈占满 当从函数进入另一个函数时当前函数的内容会入栈,另一个函数调用完时在出栈 */ int
factorial
(int n, int level
·
2014-10-21 23:00
C语言
《JavaScript高级程序设计》笔记:函数表达式(七)
递归function
factorial
(num){if(num<=1){return1;}else{returnnum*arguments.callee(num-1);}}console.log(
factorial
风雨后见彩虹
·
2014-10-21 00:00
函数表达式
javascript
牛顿的广义二项式定理---微积分推倒的开始
(∏k=0n−1(α−k))xnwhere αn− denotesthe falling
factorial
.Thatis:(1+x)α=1+αx+α(α−1)2!x2+α(α−1)(α−2)3!x3
shareCode
·
2014-10-16 11:00
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