A. The New Year: Meeting Friendstime limit per test:1 secondmemory limit per test:256 megabytesinput:standard inputoutput:standard outputThere are three fr...

You are playing the following Bulls and Cows game with your friend: You write down a number and ask your friend to guess what the number is. Each time your fr...

挑战程序竞赛系列（80）：4.3 2-SAT（4）传送门：POJ 2749: Building roads题意： 阳关路与独木桥：有N个农场，其中A对相互讨厌，不能碰面；B对相互喜欢，必须碰面...