英文题目翻译day1

戏剧广场

每次测试时间限制：2秒

每次测试存储限制：64megabytes(兆字节=Mb)

输入：标准输入

输出：标准输出

Berland的首都有一个尺寸为n*m平米的矩形戏剧广场。趁着城市周年庆的occasion(时机)（在这个城市的周年纪念之际），决定用square granite flagstones(方花岗岩石板)来铺装广场。每个flagstone（石板）尺寸为a*a平米。

至少需要多少个石板来铺装广场？允许覆盖的面积超过戏剧广场，但是广场需要被完全覆盖。不允许破坏石板。石板的边应当与广场平行。

输入

第一行输入三个positive（正）整数：n,m和a(1<=n,m,a<=1e9)

输出

输出需要的石板数目。

测试样例

输入

6 6 4

输出

4

A. Theatre Square

time limit per test: 2 seconds

memory limit per test: 64 megabytes

input: standard input

output: standard output

Theatre Square in the capital city of Berland has a rectangular shape with the size n × m meters. On the occasion of the city's anniversary, a decision was taken to pave the Square with square granite flagstones. Each flagstone is of the size a × a.

What is the least number of flagstones needed to pave the Square? It's allowed to cover the surface larger than the Theatre Square, but the Square has to be covered. It's not allowed to break the flagstones. The sides of flagstones should be parallel to the sides of the Square.

Input

The input contains three positive integer numbers in the first line: n,  m and a (1 ≤  n, m, a ≤ 109).

Output

Write the needed number of flagstones.

Sample test(s)

input

6 6 4

output

4

标签：Square,石板,英文,output,day1,flagstones,input,题目,广场
来源： https://blog.csdn.net/m0_59781472/article/details/122535201