Category Archives: Programming (en)
C Language: Recursion Exercises
To learn recursion you need to pump up some muscles. To do so – make some of exercises which are listed below. If something did not work out, you can peep the solution. Most likely the next day you will … Continue reading
Posted in C language (en)
Leave a comment
C Language: Recursion and the Collatz Conjecture
We continue to take the Computer Science CS50 course and the C language. We study recursion using the example of the Collatz hypothesis – an interesting (and easy to understand) mathematical problem that has not yet been solved by scientists. … Continue reading
Posted in C language (en)
Leave a comment
C language: multi-round voting
In the third week of the Computer Science CS50 (Harvard) course, it is proposed to do homework in Problem Set 3 called runoff.c – you need to write a program code that does not just calculate which candidate received the … Continue reading
Posted in C language (en)
Leave a comment
C Language: Majority Elections
The third week of Computer Science CS50 (Harvard) training begins and we continue to learn the C language. The first task: the implementation of a voting system where the candidate with the most votes wins, the so-called. plurality system or … Continue reading
Posted in C language (en)
Leave a comment
C language: Scrabble game with a friend
In the second week of the Computer Science CS50 (Harvard) course, after completing all the individual tasks, we move on to the C lab, which must be completed in a group. It will be an interesting task – to write … Continue reading
Posted in C language (en)
Leave a comment
C Language: Advanced Caesarian Encryption
We continue to do homework from Problem set 2 in Computer science CS50 (Harvard). Last time, we learned how to encrypt text by shifting letters by a certain number (key) entered by the user. And this time we will solve … Continue reading
Posted in C language (en)
Leave a comment
C Language: Calculating the Level of Difficulty of a Text Using the Coleman-Liau Index
We continue to take the Computer Science CS50 (Harvard) course, and this time we will do the task of calculating the level of complexity of the text according to the Colman-Liau index (readability.c) in the C programming language. According to … Continue reading
Posted in C language (en)
Leave a comment
C Language: Caesar Text Encryption
We continue to do homework in the Computer science CS50 (Harvard) course, and this time we need to write the program code and encrypt a text message. The essence of the ceasar.c task is that the program asks for the … Continue reading
Posted in C language (en)
Leave a comment
C language: how many coins does the cashier give
While studying Greedy Algorithms at CS50 (Harvard), let’s solve the problem about coins (Cash.c). Let’s say you need to give change to a customer in a store and you want to minimize the number of coins you give out to … Continue reading
Posted in C language (en)
Leave a comment
C Language: Checking Credit Card Number Using Luhn’s Algorithm
In the cs50 course (Harvard) there is a C programming problem to determine the correctness of a credit card number through the Luhn algorithm (credit.c). Let’s analyze this problem and show two more solutions. So. Any credit card has a … Continue reading
Posted in C language (en)
Leave a comment
C language: draw a pyramid from Mario
An interesting puzzle for beginners from CS50 (Harvard). Task: draw a pyramid from the Mario (mario-less.c) game using # symbols (lattice or hash). The user is asked: “How many blocks to make a pyramid from?”, he enters a number and … Continue reading
Posted in C language (en)
Leave a comment
JavaScript – loop with do-while postcondition
In JavaScript, in addition to the while and for loops, there is another variant of the do-while loop: do{ }while(); The meaning of this construct is that what is inside the curly braces is executed first, and then the while() … Continue reading
Posted in Javascript (en)
Leave a comment
JavaScript – while and for loops
JavaScript has two loops, while and for. They both run at the same speed. The for loop is more flexible – it has three parts separated by semicolons in parentheses. General entry: for(first; second; third); Inside the parentheses, the semicolon … Continue reading
Posted in Javascript (en)
Leave a comment
JavaScript – simple tasks for loops
Goal: write JavaScript code that calculates how much 2^10 is using a loop. Solution: varnum=2; varpower=10; varresult=1; var subpower=1 while (subpower<=power){result*=num;subpower++}; document.write(result)
Posted in Javascript (en)
Leave a comment
JavaScript – how to embed code in html and display on the site
JavaScript code can be written in any notepad and saved with a .js extension – you can also embed the code in an html page using the <script>…</script> tags in both the head and body sections. It is better to … Continue reading
Posted in Javascript (en)
Leave a comment
JavaScript – Loops, Counter
A loop is a piece of code that repeats a certain number of times. The number of repetitions or the number of iterations is described with a counter. The loop is written with while(an expression that is converted to a … Continue reading
Posted in Javascript (en)
Leave a comment
JavaScript – data output
Inside the html code, you can insert and execute JavaScript using the <script>…</script> tags, which can be inserted into the head of the page. Data output is different depending on the interpreter: var cat = “vera”; //cat’s name document.write(‘Hi, ‘ … Continue reading
Posted in Javascript (en)
Leave a comment