Greedy algorithm is described as an algorithm that follows the problem-solving heuristic of making the locally optimal choice at each stage with the intent of finding a global optimum. Thus, it is always interesting to find a problem, which can…
Tag: codeforces
C# – CodeForces – Chtholly’s request
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,…
C# – CodeForces – Borya’s Diagnosis
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…
C# – CodeForces – Odds and Ends
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…
C# – CodeForces – Two TVs
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…
C# – CodeForces – Luba And The Ticket
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 +…
C# – CodeForces – Game of Rows
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 – Star Sky
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…
C# – CodeForces – Keyboard Layouts
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…
C# – CodeForces – Okabe and Banana Trees
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…
C# – CodeForces – Karen and Game
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…
C# – CodeForces – An express train to reveries
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…
C# – CodeForces – An abandoned sentiment from past
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…
Codeforces – Problem 798A – Checking the Calendar
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…
C# – Code Forces – Codeforces Round #406B
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…
C# – Code Forces – Codeforces Round #402B
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…
Code Forces – New Year and North Pole – A problem much easier than initially thought
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…
C# – Algorithms – Parade – CodeForces.com
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…
C# – Algorithm – Bear And Prime, Interactive Problem in CodeForces
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…
C# – Algorithms – Vanya and Label
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…
Python – Algorithm from CodeForces – Bears and Blocks
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…
Python – two solutions in codeforces.com
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…
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