#include <iostream>#include <math.h>#include <stdio.h>using namespace std;#define PI 3.14159float f[4],r[10];int main(){ int n,j,k; float res,target,dia,ma,mb,mc; scanf("%d",&n); for(int i=0;i<n;i++) { for(j=0;j<3;j++)scanf("%f",&f[j]); for(j=0;j<9;j++)scanf("%f",&r[j]); scanf("%f %f",&dia,&target); double sub,min=10000.0; for(j=0;j<3;j++) for(k=0;k<9;k++) { res=(f[j]/r[k])*PI*dia; sub=fabs(double(target-res)); if(sub<min){min=sub;ma=f[j];mb=r[k];mc=res;} } printf("A gear selection of %.0f/%.0f produces a gear size of %.3f.n",ma,mb,mc); if(i!=n-1)printf("n"); } return 0;}
