Contest Clarifications

xtulollipop | 2015-08-15 20:19:51Author

6 5 4 3 2 1 应该输出什么？

admin | 2015-08-15 20:21:43# 1

xx315 | 2015-08-15 20:22:10# 2

2？？？？？？？？？？？？？？？？？？？

admin | 2015-08-15 20:23:06# 3

是的 6 5 4 3 2 1->1 2 3 4 5 6 答案为2