#programming

school How can one prepare for the IOI competition?

Preparing for the International Olympiad in Informatics (IOI) competition requires both technical and mental preparation. The IOI is a programming... Read more

code What is the IOI, and how does it differ from other programming competitions?

The International Olympiad in Informatics (IOI) is a prestigious programming competition for high school students from around the world. Established... Read more

code What is the purpose of the main method in Java?

The main method is a crucial part of a Java program. It is the entry point of any Java application and serves as the starting point of program... Read more

code What is the difference between a variable and a constant in Java?

In Java, a variable is a named memory location that can store a value of a specified data type. The value stored in a variable can be changed during... Read more

leaderboard How is the IOI competition scored?

The International Olympiad in Informatics (IOI) is an annual programming competition for secondary school students around the world. It is a... Read more

code What is the difference between a regular expression and a pattern in Java?

In Java, a regular expression (regex) is a sequence of characters that defines a search pattern. It is used to match and manipulate text. In... Read more

code How do I activate the Prettier formatter?

If you're looking to activate Prettier, a code formatter, in your VS Code editor, follow these steps:Open VS Code and click on the Extensions icon in... Read more

storage Which database is more reliable: Postgresql or MySQL?

Both Postgresql and MySQL are popular and widely-used open-source relational database management systems (RDBMS). Deciding which one is more reliable... Read more

code What are the most popular programming languages, their strengths and weaknesses, and main uses?

There are many programming languages used in software development, each with its strengths, weaknesses, and main uses. Here are some of the most... Read more

data_usage What is the difference between a HashSet and a TreeSet in Java?

Both HashSet and TreeSet are two important classes in Java's Collection Framework that are used to store a collection of elements, but there are some... Read more