AE00 - Rectangles

题意翻译

# 题目描述 Byteman收藏了许多边长为1的正方形。他能用这些正方形组合出多少个不同的长方形? 如果一个长方形可以通过旋转得到另一个长方形,我们称这两种组法相同,且在Byteman组合时,他既不能拆分一个正方形也不能让一个正方形堆叠在另一个正方形上。 # 输入输出格式 ## 输入格式: 第一行也是唯一一行,输入一个整数N(1<=n<=10000)。 ## 输出格式: 第一行也是唯一一行,这一行应包含一个整数,等同于Byteman可以用他的正方形组成不同长方形的数量。

题目描述

Byteman has a collection of N squares with side 1. How many different rectangles can he form using these squares? Two rectangles are considered different if none of them can be rotated and moved to obtain the second one. During rectangle construction, Byteman can neither deform the squares nor put any squares upon any other ones.

输入输出格式

输入格式


The first and only line of the standard input contains one integer N (1 <= N <= 10000).

输出格式


The first and only line of the standard output should contain a single integer equal to the number of different rectangles that Byteman can form using his squares.

输入输出样例

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