#include <cstdlib> #include <cstdio> #include <cstdlib> #include <stdio.h>#define eps 1e-6#define abs(real) (((real) > 0) ? (real) : -(real))#define zero(real) ((abs(real) < eps) ? 1 : 0)#define output(real) (zero(real) ? 0 : (real))const double pi = 3.1415926535897932384626433832795;int main(){ int kase; int ri, re, m, n; double t, c, s[5]; scanf("%d", &kase); while(kase--) { scanf("%d", &re); for (ri = 1; ri <= re; ri++) { scanf("%d%d%lf%lf", &m, &n, &t, &c); s[0] = m * n * t * t; s[1] = ((m - 1) * n + (n - 1) * m) * t * c; s[2] = ((m - 1) * (n - 1)) * c * c; s[4] = ((m - 1) * (n - 1)) * pi * c * c / 4.0; s[3] = s[2] - s[4]; s[2] = s[1] - 2 * s[2]; s[1] = s[0] - s[2] - s[3] - s[4]; s[0] /= 100.0; s[1] /= s[0]; s[2] /= s[0]; s[3] /= s[0]; s[4] /= s[0]; printf("Case %d:n", ri); printf("Probability of covering 1 tile = %.4lf%%n", output(s[1])); printf("Probability of covering 2 tiles = %.4lf%%n", output(s[2])); printf("Probability of covering 3 tiles = %.4lf%%n", output(s[3])); printf("Probability of covering 4 tiles = %.4lf%%n", output(s[4])); if(ri != re) putchar('n'); } if(kase) putchar('n'); }}
