문제 링크

정답 :

def solution(num_list):
    even = 0
    odd = 0
    
    for i in num_list:
        if i % 2 == 0:
            even += 1
        else:
            odd += 1
    
    return [even, odd]

방법 1.

def solution(num_list):
    answer = [0, 0]
    
    for n in num_list:
        answer[n % 2] += 1
        
    return answer