Problem C
Billiard
In a billiard table with horizontal side
Assume that the collisions with a side are elastic (no energy loss), and thus the velocity component of the ball parallel to each side remains unchanged. Also, assume the ball has a radius of zero. Remember that, unlike pool tables, billiard tables have no pockets.
Input
Input consists of a sequence of lines, each containing five
nonnegative integers separated by whitespace. The five numbers
are:
Input is terminated by a line containing five zeroes.
Output
For each input line except the last, output a line
containing two real numbers (rounded to exactly two decimal
places) separated by a single space. The first number is the
measure of the angle
Sample Input 1 | Sample Output 1 |
---|---|
100 100 1 1 1 200 100 5 3 4 201 132 48 1900 156 0 0 0 0 0 |
45.00 141.42 33.69 144.22 3.09 7967.81 |