mercredi 22 avril 2015

python - sieve of Eratosthenes when number is prime print "1" when not print "0"

I must create a function f(n) which value is 1 when the number is prime or value is 0 when isn't prime. Code is working but prints in revers order. For example: f(6)= 0 0 1 1 0 1 0

def prime(n):
    if n<2: return False
    for i in range(2,n):
        if n%i == 0:
            return False
    return True

def f(n):
    print('0', end=' ')
    while a<=n:
        print('1' if prime(n) else '0', end=' ')


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