题意 有一个竖直的管子内有n个小球,小球的半径为r,最下面的小球距离地面h高度,让小球每隔一秒自由下落一个,小球与地面,小球与小球之间可视为弹性碰撞,让求T时间后这些小球的分布 Input The first line of the input contains one integer C (C ≤ 20) indicating the number of test cases. Each of the following lines contains four integers N, H, R…
Linear world Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 4426 Accepted: 1006 Description The Disc, being flat, has no real horizon. Any adventurous sailors who get funny ideas from staring at eggs and oranges for too long and set o…