Contest Clarifications

20130111 | 2014-10-18 20:20:18Author

he could go to second floor in 4 ways so as he go to third floor so he have 4*4=16 ways

lgq1205 | 2014-10-18 20:28:14# 1

RE:how could the sample 1 be 8?

2 * 2 * 2 doors

20130111 | 2014-10-18 20:29:01# 2

RE:how could the sample 1 be 8?

THX