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Discussion of Problem 2102. Michael and Cryptography

Test 23
Posted by Daniial 2 Nov 2020 06:33
Help please:
Test 23, whats wrong, what test should chek?

def sieve(n):
    lis = list(range(n + 1))
    lis[1] = 0
    for i in lis:
        if i > 1:
            for j in range(i + i, len(lis), i):
                lis[j] = 0
    return [i for i in lis if i != 0]
c = sieve(200)
a = int(input())
if a == 0:
    print('No')
i = 0
b = []
e = 0
while a != 1:
    if a%5 != 0 and a%2 != 0 and a%3 != 0:
        e +=1
        break

    elif a % c[i] == 0:
        a /= c[i]
        b.append(c[i])
        continue

    else:
        i += 1
d = str(len(b))
if  len (b) == 20 or (len (b) == 19 and e != 0):
    print('Yes')
else:
    print('No')
Re: Test 23
Posted by Smetya 2 Apr 2023 15:57
In this code possible i > len(c)