delete pics to save space

2.10868.cpp

@@ -0,0 +1,24 @@
+#include<cstdio>
+#include<cmath>
+char* out[3]={"Killed by the impact.","Stuck in the air.","James Bond survives."};
+const double g=9.81;
+double a,b,c,cc,x,y,k,l,s,w;
+int res;
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	while(scanf("%lf%lf%lf%lf",&k,&l,&s,&w)==4&&(k!=0.0||l!=0.0||s!=0.0||w!=0.0))
+	{
+		a=k/2, b=-w*g, c=50*w-w*g*l, cc=-w*g*l;
+		x=0.0;
+		if(b*b-4*a*c >= 0.0) x=(-b+sqrt(b*b-4*a*c))/2.0/a;
+		y=(-b+sqrt(b*b-4*a*cc))/2.0/a;
+		res = 0; // bad
+		if (s > l+y) res = 1; // ugly
+		else if (s >= l+x || s <= 50/g) res = 2; // good
+		printf("%s\n",out[res]);
+	}
+    return 0;
+}