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1051.Theatre Square
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1051.Theatre Square
时间限制:1000MS 内存限制:65535KB
题目描述
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.
输入描述
The input contains three positive integer numbers in the first line: n,m and a (1\<=n,m,a\<=1000000000).
输出描述
Write the needed number of flagstones.
示例
输入样例
6 6 4 2 3 2
输出样例
4 2
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相关标签
math
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GNU C++ 9.3.0
GNU C 9.3.0
Java 1.8
Python 3.8.4
Lua 5.3
GO 1.12.4
JS - (nodejs 10.19.0)
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测试输入
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6 6 4 2 3 2
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