factorial
unsigned long long factorial(unsigned long long num){
if(num<=0)
return 1;
return num * factorial(num-1);
}factorial
unsigned long long factorial(unsigned long long num){
if(num<=0)
return 1;
return num * factorial(num-1);
}factorial
function BracketCombinations(num) {
return (1 / (num + 1)) * choose(2 * num, num);
}
function fact(num) {
let sum = 1;
for (let i = 1; i <= num; i++) {
sum *= i;
}
return sum;
}
function choose(num, k) {
return fact(num) / 2 * (fact(k) * 1 / fact(num - k));
}factorial
// FACTORIAL
// 5! = 5 * 4 *3 * 2 *1 = 120
const number = 5;
let fact =1 ;
for(let i=number;i>=1;i--)
{
console.log(i)
fact = fact * i;
}
console.log("FACTORIAL is :: ",fact);factorial
//Java program to find factorial of a numberimport java.util.Scanner;public class factorial{ public static void main(String[] args) { //scanner class declaration Scanner sc = new Scanner(System.in); //input from user System.out.print("Enter a number : "); int number = sc.nextInt(); if(number >= 0) { //declare a variable to store factorial int fac = 1; for(int i = number ; i >= 1 ; i--) fac = fac * i; //display the result System.out.println("Factorial of "+number+" is "+fac); //closing scanner class(not compulsory, but good practice) } else System.out.println("Value is not defined, please re-enter the value"); sc.close(); }}factorial
#include<stdio.h>
#include<conio.h>
void main()
{
int fact, i, n;
fact = 1;
printf("Enter the number\t");
scanf("%d" , &n);
for(i = 1; i <= n; i++)
{
fact = fact*i;
}
printf("Factorial of %d is %d", n , fact);
getch();
}factorial
public static void factorial(int num){
if(num<=0)
return 1;
return num * factorial(num-1);
}Factorial
// METHOD ONE
const factorialNumber = num => {
let factorials = []
for(let i = 1; i <= num; i++) factorials.push(i)
return factorials.reduce((acc , curr) => acc * curr, 1)
}
// METHOD TWO
const factorialNumber = num => {
let factorial = 1, i = 1
while(i <= num){ factorial *= i; i++ }
return factorial
}
// METHOD THREE
function factorialNumber(num) {
if(num < 1) return 1
else return factorialNumber(num - 1) * num
}Copyright © 2021 Codeinu
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