[프로그래머스/파이썬] 영어 끝말잇기

-Code

def solution(n, words):
    arr = [words[0]]
    for i in range(1, len(words)):
        if words[i - 1][-1] != words[i][0] or words[i] in arr:
            return [i % n + 1, i // n + 1]
        arr.append(words[i])
    return [0, 0]