c++ factorial
#include <cmath>
int fact(int n){
return std::tgamma(n + 1);
}
// for n = 5 -> 5 * 4 * 3 * 2 = 120
//tgamma performas factorial with n - 1 -> hence we use n + 1c++ factorial
#include <cmath>
int fact(int n){
return std::tgamma(n + 1);
}
// for n = 5 -> 5 * 4 * 3 * 2 = 120
//tgamma performas factorial with n - 1 -> hence we use n + 1recursion factorial algorithm
FUNCTION FACTORIAL (N: INTEGER): INTEGER
(* RECURSIVE COMPUTATION OF N FACTORIAL *)
BEGIN
(* TEST FOR STOPPING STATE *)
IF N <= 0 THEN
FACTORIAL := 1
ELSE
FACTORIAL := N * FACTORIAL(N - 1)
END; (* FACTORIAL *)factorial recursive
N= int(input())
def fun(n):
if n ==1 or n==0:
return 1
else:
n = n * fun(n-1)
return n
print(fun(N))Copyright © 2021 Codeinu
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