59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
#include<iostream>
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#include<cmath>
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using namespace std;
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const double eps = 1e-8;
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int main()
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{
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int t;
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double s, ax, bx, ay, by;
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double a, b, c, p, ans1, ans2;
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scanf("%d", &t);
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while(t --)
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{
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scanf("%lf%lf%lf%lf%lf", &s, &ax, &bx, &ay, &by);
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a = (ax - ay) / 2;
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b = bx - by;
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c = s;
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if(fabs(a) < eps)
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{
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if(b > eps)
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{
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printf("Good driver,Jiaoshou!\n");
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}
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else if(fabs(b) < eps)
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{
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printf("Good driver,Jiaoshou!\n");
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}
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else
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{
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printf("Oh,God!Jiaoshou will be catched after %.3f minutes.\n", -s / b);
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}
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}
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else{
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p = b * b - 4 * a * c;
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if(p < -eps)
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{
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printf("Good driver,Jiaoshou!\n");
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}
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else
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{
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ans1 = (-b - sqrt(p)) / (2 * a);
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ans2 = (-b + sqrt(p)) / (2 * a);
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if(ans1 < 0 && ans2 < 0)
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{
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printf("Good driver,Jiaoshou!\n");
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}
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else if(ans1 > 0)
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{
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printf("Oh,God!Jiaoshou will be catched after %.3f minutes.\n", ans1);
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}
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else
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{
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printf("Oh,God!Jiaoshou will be catched after %.3f minutes.\n", ans2);
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}
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}
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}
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}
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return 0;
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}
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