日期

规定一年a[0]个月,每月a[1]天,每周a[3]天,周一至周a[3]为[a-z]. 假设第1年第1个月第1天为a,求b[2]年b[1]月b[0]天为duo

import sys
a = sys.stdin.readline().strip()
b = sys.stdin.readline().strip()
a = [30, 12, 7]
b = [7, 2, 2]
days = a[0]
months = a[1]
weeks = a[2]
total_days = (days*months)*(b[2]-1) + days*(b[1]-1) + (b[0]-1)
offset = total_days % weeks
print(chr(ord("a")+offset))

并查集

import sys
N = int(1e5)
un_id = [i for i in range(N)]


def connect(a, b):
    a_id = un_id[a]
    b_id = un_id[b]
    if a_id == b_id:
        return True
    for i in range(N):
        if un_id[i] == a_id:
            un_id[i] = b_id


n = int(sys.stdin.readline().strip())
for i in range(n):
    # 读取每一行
    line = sys.stdin.readline().strip()
    # 把每一行的数字分隔后转化成int列表
    values = list(map(int, line.split()))
    if values[0] == 1:
        connect(values[1], values[2])
    elif values[0] == 2:
        a = values[1] % values[3]
        b = values[2] % values[3]
        if un_id[a] == un_id[b]:
            print("YES")
        else:
            print("NO")