KOREATECH 1097: 실습시험 연습문제: 가장 긴 접두부분문자열 찾기

Link : judge.koreatech.ac.kr/problem.php?id=1097

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Python

from sys import stdin
 
case_cnt = int(stdin.readline().strip())
 
for _ in range(case_cnt):
    data_list = stdin.readline().strip().split(' ')
    token = ''
    status = True
    try:
        for idx, target in enumerate(data_list[1]):
            for i in range(2, len(data_list)):
                if target != data_list[i][idx]:
                    status = False
                    break
            else:
                token += target
            if not status:
                break
    except Exception as ex:
        pass
    finally:
        print(token)

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