QOJ.ac
QOJ
Time Limit:
1 s
Memory Limit:
256 MB
Total points:
100
# 8151. 靠谱的预言家
统计
该题目在以下比赛中使用过：
This is a wrong problem. The intended solution is wrong or the statement is confusing. The problem is reserved
here for reference only. We do not recommend you to try to solve the problem.