HI. I have been trying to solve this problem but while I was second guessing myself I noticed that the first test case is not right but of course this problem was in a contest and a lot of people solved it so I thought (again) I was wrong so could anyone please explain the first test case because the point 1 (2,0) = -2 and point 2 (1,0) = -1 and x1>x2 and y1=y2 so point 1 value should be bigger that point 2 value but -2<-1 can someone please explain the link to the problem thanks in advance.

It's been a lot of time since codeforces hosted a round. It's all cups these days or unrated rounds,I'm not complaining.I'm just wondering why the rounds are gone,and are they coming back,if so when?

Good morning, today I stumbled across this problem which I could not solve it looks really easy but I couldn't. I read the Tutorial but still didn't get it if you can explain this problem to me or at least give me the code to understand on my own I would be very greatful thanks in advance. the link to the problem is here

[user:M.A.H.M.O.O.D]Hello codeforcers I'm a coder and I'm new at this I have been training and I was trying to move up in the kind of problems that I can solve right now I'm stuck on div 2 B problems I can solve them but not C problems so I want to learn new algorithms and I have been trying to do this but the problem is that when I open a web site it takes me to another and that web site takes me to another... or it gives me a very small part of what I want. So if you know some good resources to learn programming without having to switch from a site to another (or a book to another ) please can you tell me about it so that I will have to read THIS RESOURCE ONLY and just solve problems thanks in advance.