javascript factorial

Source: http://www.cnblogs.com/stonehat/p/3603267.htmlHere, worship the original author heheWe know that the number of bits of integer n is calculated as: log10 (n) +1So the number of n! is log10 (n!) +1If the specific value of n! is required, the calculation will be very slow for a large n (for example, n=1000000), and if only the number of digits of the factorial is obtained, the Stirling (Stirling) formula can be used to solveSterling (Stirling) fo

Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> // Factorial RecursionAlgorithm(A combination of N numbers) Function Calfactorial (N){ If (N 0 ){ Return ' N cannot be negative. ' ;} Else If (N = 0 ){ Return 1 ;} Else { Return N * Calfactorial (n - 1 );}} Function Factorialwork (anumber, recursnumber ){ // Recursnumber keeps track of the number of

LeetCode 172: Factorial Trailing Zeroes Given an integer n, return the number of trailing zeroes in n !. // Question Description: given an integer n, return n! (Factorial of n) the number of suffixes 0. // Method 1: first obtain the factorial of n and then calculate the number of 0 at the end. This method is n when n is large! Class Solution {public: int trailin

LightOJ-1045 Digits of factorial Time Limit: 2000MS Memory Limit: 32768KB 64bit IO Format: %lld %llu Submit StatusDescriptionFactorial of an integer was defined by the following functionF (0) = 1f (n) = f (n-1) * N, if (n > 0)So, factorial of 5 is 120. But in different bases, the factorial is differ

[Email protected] ~]#CatJiechen.SH #!/bin/bash# Design a shell program to calculate the factorial of N, required: #1. Receive parameters from the command line n;#2to determine the legality of n immediately after the commencement of the program, that is, whether there are parameters, if any, if there is a positive integer, if illegal, please give the wrong hint. #3. The result of the final calculationNum=$1Expr$num +1>/dev/NULL[ $? -ne0] Echo "Please i

Problem Description:write code to ask:1! +2! +3! +...+20! The valueCode1 Public classDemo {2 3 Public Static voidMain (string[] args) {4 5 6 Longnum=0;//used to Count7 for(inti=1;i//Circular Numbers8 {9 LongN=1;//Set start numberTen for(intj=1;j//factorial of each number One { An=n*J; - - } theNum=num+n;//num in which to count - } - - + System.out.println (num); - +

After seeing the topic, analysis, the factorial of 10 is already very big. The calculation of the end of the number of 0, completely unrealistic, even if the implementation is also very troublesome. Later, when you think of a number in the factorial of the product has 5 end of the number should be at the end of the result of a 0. Put it into practice, test a few, no mistakes. Posted out, we look, have a

* * Copyright (c) 2011, Computer College of Yantai University * All rights reserved. * File name: Test.cpp *: Li Xinpeng * Completion date: November 22, 2013 * Version number: v1.0 * Description of task and solution method: * Input Description: input factorial * problem Description: Factorial * Program output: Numerical * Problem analysis: * Algorithm Design: Recursive */ #include Run Result: Experie

C. Drazil and factorial time limit per test 2 seconds memory limit per test megabytes input standard input output Stan Dard output Drazil is playing a math game with Varda. Let's define for positive an integer x as a product of factorials of its digits. For example,. First, they choose a decimal number a consisting of n digits that contains at least one digit larger than 1. This number is possibly start with leading zeroes. Then they should find maxim

large number factorialTime limit: Ms | Memory limit: 65535 KB Difficulty: 3 Description We all know how to calculate the factorial of a number, but if the number is large, how do we calculate it and output it. Enter the factorial of an integer m (050Sample output 30414093201713378043612608166064768844377641568960512000000000000 #include "stdio.h" #define MAXN 18000 int A[MAXN]; int main () { int m,i,ind

Factorial problem time limit: 1 Sec memory limit: MBSubmitted: $ 13 Resolution:Submitted State [Discussion Version] Title Description Perhaps you already know the meaning of factorial, n factorial is multiplied by 1 to N, such as:12! = 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x Ten x x 12 = 479,001,600The rightmost non-0 bit of the

Another factorial Problem Description We all know the concept of factorial. Let's take a simple example: 5! = 1*2*3*4*5. now we introduce a new factorial concept, which will multiply each of the original numbers into all the odd numbers I not greater than N, for example, 5 !! = 1*3*5. Now I understand what this factorial