(codeup) 1912 : (재귀함수) 팩토리얼 계산

1912 : (재귀함수) 팩토리얼 계산

n = int(input())
def factorial(n,res):
  if n == 1:
    print(res)
  else:
    res = res * n
    factorial(n-1,res)
    
  
res=1
factorial(n,res)