53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
#include <iostream>
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#include <cstring>
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#include <cmath>
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using namespace std;
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double fly_pos(double vx,double vy,double h)
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{
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return vx*(vy+sqrt(vy*vy+19.6*h))/9.8;
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}
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double fly_h(double vy,double h,double t)
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{
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return h+vy*t-4.9*t*t;
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}
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int main()
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{
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double h,vx,vy,t,h0,l,v1,v2,v3;
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char bird[10];
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while(~scanf("%lf%s",&h,bird))
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{
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if(!strcmp("Red",bird))
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{
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scanf("%lf%lf",&vx,&vy);
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printf("%.3lf\n",fly_pos(vx,vy,h));
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}
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else if(!strcmp("Blue",bird))
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{
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scanf("%lf%lf%lf%lf%lf%lf",&vx,&vy,&t,&v1,&v2,&v3);
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if(fly_pos(vx,vy,h)<t*vx)
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{
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printf("%.3lf\n",fly_pos(vx,vy,h));
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continue;
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}
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h0=fly_h(vy,h,t);
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l=vx*t;
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vy=vy-9.8*t;
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printf("%.3lf %.3lf %.3lf\n",l+fly_pos(v1,vy,h0),l+fly_pos(v2,vy,h0),l+fly_pos(v3,vy,h0));
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}
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else
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{
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scanf("%lf%lf%lf",&vx,&vy,&t);
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if(fly_pos(vx,vy,h)<t*vx)
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{
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printf("%.3lf\n",fly_pos(vx,vy,h));
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continue;
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}
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h0=fly_h(vy,h,t);
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l=vx*t;
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vy=vy-9.8*t;
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printf("%.3lf\n",l+fly_pos(2*vx,2*vy,h0));
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}
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}
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return 0;
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}
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