help Jimmy问题，Jimmy老鼠在时刻0从高于所有平台的某处开始下落，它的下落速度始终为1米/秒。当Jimmy落到某个平台上时，游戏者选择让它向左还是向右跑，它跑动的速度也是1米/秒。当Jimmy跑到平台的边缘时，开始继续下落。Jimmy每次下落的高度不能超过MAX米，不然就会摔死，游戏也会结束。计算Jimmy到底地面时可能的最早时间。-help Jimmy problems, Jimmy mice at time 0 from above began to fall somewhere in all platforms, it is always falling speed of 1 m/sec. When Jimmy fell on a platform, the game chooses to make it to the left or right to run, it is also a running speed of 1 m/sec. When Jimmy went to the edge of the platform and began to fall. Jimmy can not exceed the height of each drop MAX meters, or it will fall to their deaths, the game will end. Jimmy in the end calculate the earliest possible time to the ground.