35 lines
714 B
C++
35 lines
714 B
C++
#include <iostream>
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#include <cstring>
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#include <cstdio>
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using namespace std;
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int xiede(double m,double n)
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{
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double gen3=1.732051;
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int max,x,y;
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x=(int)(2*gen3*(m-1)/3.0);
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if(m>=1)x++;
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y=(int)n;
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max=x*y;
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if(n-y<0.50000)
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max=max-(int)(x/2);
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return max;
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}
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int main()
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{
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double m,n,gen3=1.732051;
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int aa,bb,max1,max2,max3,max23,x,y;
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while(~scanf("%lf%lf",&m,&n))
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{
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aa=(int)m;bb=(int)n;
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max1=aa*bb;
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max2=xiede(m,n);
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max3=xiede(n,m);
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max23=max2>=max3?max2:max3;
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if(max1>=max23)
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printf("%d grid\n",max1);
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else
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printf("%d skew\n",max23);
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}
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return 0;
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}
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