跑步锻炼

def solve(y, m, d, n):
    import datetime
    y, m, d, n = int(y), int(m), int(d), int(n)
    start = datetime.date(y, m, d)
    km = 0
    for i in range(n):
        cur = start + datetime.timedelta(days=i)
        if cur.weekday() == 0:
            km += 2
        elif cur.month == 1 and cur.day == 1:
            km += 10
        else:
            km += 1
    print(km)