7087. 문제 제목 붙이기

https://swexpertacademy.com/main/code/problem/problemDetail.do?contestProbId=AWkIdD46A5EDFAXC&categoryId=AWkIdD46A5EDFAXC&categoryType=CODE&problemTitle=7087&orderBy=FIRST_REG_DATETIME&selectCodeLang=ALL&select-1=&pageSize=10&pageIndex=1 

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T = int(input())
for tc in range(1,T+1):
    N = int(input())
    titles = [input() for _ in range(N)]
    al = [x for x in range(65, 91)]
    cnt = [0] * 26
    result = 0
    for i in range(N):
        if ord(titles[i][0]):
            cnt[ord(titles[i][0])-65] += 1
    i = 0
    while True:
        if cnt[i] == 0:
            break
        i += 1
        result += 1
    print(f'#{tc} {result}')