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Pipe Fitters
121.c
#include <stdio.h>
#include <math.h>
#define MAX(a,b) ((a) > (b) ? (a) : (b))
int
skew(float a, float b)
{
int height;
int tot;
if (b<1) {
return 0;
} else {
height = 1 + (b-1)/(sqrt(3)/2);
}
tot = (height-height/2)*(int)a + height/2*(int)(a-0.5);
return tot;
}
int
main(void)
{
float a, b;
while(1) {
int grid;
int skew1, skew2;
if (scanf("%f %f", &a, &b)!=2) {
break;
}
grid = (int)a * (int)b;
skew1 = skew(a, b);
skew2 = skew(b, a);
if ((skew1>grid) || (skew2>grid)) {
printf("%d skew\n", MAX(skew1,skew2));
} else {
printf("%d grid\n", grid);
}
}
exit(0);
}









