题目链接https://nanti.jisuanke.com/t/31445题目One day in the jail, F·F invites Jolyne Kujo (JOJO in brief) to play tennis with her. However, Pucci the father somehow knows it and wants to stop her. There...
题目链接https://www.nowcoder.com/acm/contest/145/C题目描述A binary string s of length $N = 2^n$ is given. You will perform the following operation n times :Choose one of the operators AND (&), OR (|) or XO...
题目链接http://codeforces.com/contest/987/problem/D题目Some company is going to hold a fair in Byteland. There are n towns in Byteland and m two-way roads between towns. Of course, you can reach any town...
题目链接http://codeforces.com/contest/984/problem/E题目You work in a big office. It is a $9$ floor building with an elevator that can accommodate up to $4$ people. It is your responsibility to manage thi...
题目链接：http://codeforces.com/contest/984/problem/B题目：One day Alex decided to remember childhood when computers were not too powerful and lots of people played only default games. Alex enjoyed playing...
题目链接：http://exam.upc.edu.cn/problem.php?id=5247题目：题目描述At some point or another, most computer science students have written a standard Sudoku solving program. This is yet another “put numbers in a...