Contest Clarifications

windroid1 | 2015-02-14 20:52:39Author

For each test case, first output Case #X: ,then output the answer, if there are only one cable car, print "-1";

windroid1 | 2015-02-14 20:54:35# 1

RE:当answer是-1的时候输出case #吗？

已有clarify，sorry