from random import *
import matplotlib.pyplot as pyplot
def somme(N,n):
    L=[0]*n
    for i in range(N):
        x=0
        for k in range(n):
            x=x+random()
        x=round(x)
        L[x]+=1
    for r in range(n):
        L[r]=L[r]/1000
    A=[k for k in range (n)]
    pyplot.bar(A,L,width=0.5,color="blue")
    pyplot.show()
    return L