A - Theatre Square比赛1
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1.题目:
A - Theatre SquareTime Limit:2000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64uSubmit Status Practice CodeForces 1ADescriptionTheatre 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.InputThe input contains three positive integer numbers in the first line: n, m and a (1 ≤ n, m, a ≤ 109).OutputWrite the needed number of flagstones.Sample InputInput6 6 4Output4
2.代码:
#include<stdio.h>int main(){ __int64 m,n,a; __int64 ans1,ans2; scanf("%I64d%I64d%I64d",&m,&n,&a); if(m%a>0) ans1=m/a+1; else ans1=m/a; if(n%a>0) ans2=n/a+1; else ans2=n/a; printf("%I64d\n",ans1*ans2);}/*1000000000 1000000000 192*/
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