import time

debut_temps = time.perf_counter()



for i in range(1000):

    def factorial(n):

        if n==0:

            return 1

        else:

            return n*factorial(n-1)

    m = 100

    print(100,"!=",factorial(m),sep="")



fin_temps = time.perf_counter()

duree = 1000 * ( fin_temps - debut_temps)

print("Temps d execution",duree, "millisecondes")