[Python 기초] 중복된 숫자

https://school.programmers.co.kr/learn/courses/30/lessons/120583

프로그래머스

1. For 반복문

def solution(array, n):
    answer = 0
    for i in array:
        if i == n:
            answer += 1
    return answer

2. count()

def solution(array, n):
	answer = array.count(n)
    return answer