摘要:
下边是从天涯空间里找出来的练习(转自notonlysuccess)http://acm.pku.edu.cn/JudgeOnline/problem?id=3345http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3201 √http://acm.pku.edu.cn/JudgeOnline/problem?id=3107 √http://acm.pku.edu.cn/JudgeOnline/problem?id=1655 √http://acm.pku.edu.cn/JudgeOnline/problem?id=2378 阅读全文