#D9530. Space Golf
Space Golf
Space Golf
Example
Input
100 1 0 50 100
Output
14.57738
inputFormat
Input
100 1 0 50 100
outputFormat
Output
14.57738
样例
100 1 0
50 10014.57738
Example
Input
100 1 0 50 100
Output
14.57738
Input
100 1 0 50 100
Output
14.57738
100 1 0
50 10014.57738