［AtCoder］ABC-085｜B - Kagami Mochi

設問ページ

• 🔗ABC-085 B - Kagami Mochi

提出結果

def getInt():
    return int(input())


def getIntRow(N):
    return [int(input()) for _ in range(N)]


def main():
    n = getInt()
    d = getIntRow(n)

    r = set(d)

    print(len(r))


if __name__ == "__main__":
    main()