ID: 652

传统题

2000ms

128MiB

难度: 10

上传者:

标签>

The 2020 Benelux Algorithm Programming Contest

题目描述

Click here to read PDF of this problem

输入格式

As shown in the PDF.

输出格式

As shown in the PDF

样例

提示

by 2019孙晨曦