[SWEA] 10912 외로운 문자

Python Code

T = int(input())
for tc in range(1, T+1):
    string = list(input())
    result = []
    for i in range(len(string)):
        if string.count(string[i]) % 2:
            if string[i] not in result:
                result.append(string[i])
    result.sort()
    if len(result) == 0:
        print('#{} Good'.format(tc))
    else:
        print('#{}'.format(tc), end=" ")
        for j in range(len(result)):
            print(result[j], end="")
        print()