Solving problems at CodeForces is a kind of hobby. Lately, in round 449, division 2, there was a problem which has met my interest. It has to do with palindromes and really big numbers. The problem is easy to calculate,…

Every time, wherever I decide to take a look at CodeForces and to code & publish some of the easy problems, I am thinking that this is probably the last one, because it is too easy. However, I always find…

The first problem in CodeForces, division 2 is usually an implementation problem. This means that after reading it, a Joe-average algorithmic person would know how to write it in less than 5 minutes. Or so I thought, before seeing this…

Having two TVs is great. Or it used to be in the 90s. Anyhow, the latest problem in CodeForces that I have resolved was concerning a guy with a schedule of TV shows, which he was planning to watch on his…

Magic tickets are considered the tickets in which the sum of the left digits is equal to the sum of the right digits. E.g., if you ticket is number 124016 it is a magic ticket, because 1+2+4 = 0 +…

CodeForces.com has become something like a hobby – instead of thinking about a topic for an article, I simply solve a problem there and blog about it. Thus, lately I have taken a look at Round 428, Division 2, problem…

CodeForces.com is one of the reasons why I blog quite often. Last week, in round 427 there was an interesting problem, which I was eager to solve. The problem was described as follows: The Cartesian coordinate system is set in…

CodeForces.com is the web site, which shows problems for competitive programmers. Today I have decided to take a look at the 2. problem of the 2. division of Round 424 –Keyboard Layouts. The problem is pretty simple to explain for…

It does not happen a lot, but this time the 2. problem of CodeForces really made me rethink my life choices and made me feel a bit sorry that I was in a school where we studied Maths about 4 hours…

Karen and Game is the third article about Karen. In a row. Pretty much, someone in CodeForces has created 7 different problems with her, thus the Japanese lady is getting famous. This time the problem looks like this: The game is…

CodeForces.com is a web site for competitive programming. One of the 2 really famous sites in internet. Yesterday I was fighting with a the problem 2 in Division B from competition number 814 for about 1 hour, until I have managed…

CodeFoces.com is the place where I go when I do not know what to blog about. 🙂 Anyhow, as a developer who is with some experience there, I always expect that the first problems of Division 2 would be quite…

After reviewing the Meller watch, it’s time for some more IT related stuff in the blog. Thus, I have decided to do what I usually do when I want to write some article and I do not know what to…

Its Sunday and it is a good idea to see what CodeForces have done through the week. As in general, lots of good problems. Thus, starting with the easiest one in the second division. A. The Monster A monster is…

Codeforces.com is really a nice site, if want to try yourself vs. the top programming students in the world. Just to check your level in a way 🙂 Thus, today I have decided to take a look at the problems…

In the new 2017 I have decided to take a new look at CodeForces and what do they bring us. After all, this is one of the very few “places” in the world, where you can compete with the world…

CodeForces.com is really a nice place you can learn stuff. Learning by doing is probably what man actually needs in programming. Thus, I have taken the 2. Problem of the 2. Division in CodeForces, as far as it seemed interesting…

On Wednesday I was participating in a round of the second division of Codeforces.Com and I managed to resolve 2 problems (1 completely, 1 not exactly completely :)). The third problem was written to be “interactive” and as far as…

On Wednesday I have participated in a codeforces.com competition and it was not as quite successful as I wished it to be. I managed to solve 2 problems and 1 of them was hacked, which means 1 problem. Anyhow, I was…

Hello party people! 🙂 Today I was wondering whether I have forgotten to code in Python after 4 weeks of coding marathon in VBA and I have decided to try a small portion of the weekly challenge from CodeForces! So, the…

Yesterday, I have decided to make an account in codeforeces.com and to check how the system works. Pretty much quite well, in 90 minutes I have managed to solve 2 of the 5 problems: I have decided to stop, because for…