###### Category: C Sharp Tricks

Why do Java developers wear glasses?
Because they do not C#.

## .Net – Reading Excel file in C# and transferring it to a matrix

There is an ERP joke, claiming that the third most popular button of an ERP system is “Export to Excel” (after OK and Cancel). Thus, working with Excel from .Net is happens often. There are some pitfalls, that you should

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## C# – Looking for a value in Excel with C# & VisualStudio

Using Visual Studio and Excel is actually quite fun – the Visual Studio advanced environment provides a bit more possibilities than the Visual Basic Editor, built-in Excel. In this article, about a year ago I have shown how to loop

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## 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,

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## VBScript Simple Program – Problem in CodeForces

In order to learn a language, the best way is to practise it! Thus, I have decided to challange myself to solve a task on CodeForces with VBScript.  As far as VBScript is not one of the official CodeForces languages

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## 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

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## C# – SoftUni – Natural Order Sequences

Another SoftUni algorithm problem that I have considered interesting is presented here: You are given an integer S. Generate all non-empty sequences of numbers in range [1…S], which have sum of elements ≤ S. Display the sequences in their natural order,

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## C# – CodeForces – Tell Your World

Y = mX+B This formula is the basics of the Cartesian coordinate system. And about 70% of the knowledge, needed to solve problem B in the 2. Division of CodeForces. The problem looks like this: There are n points on a coordinate

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## 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

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## 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 +

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## 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

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## 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

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## 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

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## C# – CodeForces – A. Mister B and Book Reading

Codeforces has easy and tough questions. However, the easy are not always easy, but the tough are always tough. Thus, after writing the Excel article here for Sumproduct, I have decided to go a bit easy and start with the

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## C# – CodeForces – Okabe And Boxes

CodeForces has people working 24/7, trying to come up with interesting problems for the IT community. Thus, it’s always challenging to take a look at these problems and to try to solve them. The latest problem I have faced was one

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## 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

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## C# – CodeForces – Okabe and Future Gadget Laboratory

CodeForces is a nice website for anyone, who likes checking himself vs the top developers worldwide. It’s even separated into divisions, thus, they kindly provide 3 easy questions and 5 hard. Although, I do not know anyone who can call

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## 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

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## C# – CodeForces – Karen and Coffee

If you are following this blog you are probably asking yourself Who the beep is Karen? and why do I write a 2. article about her in a row? 🙂 Well, that’s Karen and she obviously likes coffee: Karen was the main

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## C# – CodeForces – Karen and Morning

Its Sunday and it is time for CodeForces. Today I have taken a look at round number 816, Problem A. The problem initially looks rather easy and you think that nothing can go wrong, until you do not try it.

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## 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

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## 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

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## C# – CodeForces – Sagheer and Crossroads

Codeforces.com is the web site, that lets you check your algorithmic skills, in case that you want to see where you are, compared to the world. Thus, today I was checking the problems in the 2. Division and the first

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## Entity Framework – C# – CodeFirst – Video

After the first two videos for C# Entity Framework (Video 1 and Video 2) I have decided to make a small one for the Code First approach. I have used the materials of SoftUni here, mainly concentrating on problem 3.

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## Entity Framework – C# – Introduction – Video – Part 2

After the first part of the SoftUni homework for Entity Framework here, I have decided to make a small video with the next 4 problems. Following the same logic, I have made a 30 minute YouTube video with the trial

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## Entity Framework – C# – Introduction – Video

I have started some time ago to do stuff with Entity Framework (EF) in VitoshAcademy, I even have two articles about it – Beginning with EF and Enable Migrations with EF. I have noticed that the SoftUni is having an EF course,

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## CodeForces – Problem 798B – Mike and strings

Solving problems in CodeForces usually never works out as expected somehow – if I tend to overestimate the problem, I am able to solve it within 10 minutes and if I underestimate it, I stay about 1 hour on a simple

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## 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

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## C# – Code Forces – Not Afraid

CodeForces.Com is probably the only place in the world, where an amateur would be able to compare himself with the best in class professionals. Imagine, if everyone was able to play daily vs Cristiano Ronaldo 🙂 Thus, every now and

## 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

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## 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

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