That's the solution for counting right positions. Thus, to count the number of right positions, we need to count the number of pairs where the first character from secret is equal to the second character from guess. If any pair in the resulting list consists of two similar characters, that means this character is guessed correctly with this position. When you zip two strings, it returns your list of pairs, where each pair consists of the characters at the same places from these strings. The zip function is really helpful for that. The number of letters that occur at the same place as both in secret and guess strings. At first, we need to count the number of letters guessed right with their positions. We have an incomplete solution, where we need to fill the remaining parts. ![]() Let's see how the mastermind task can be solved in the functional style. We'll discuss: basic syntax, nullability, functional programming with Kotlin, object-oriented programming with Kotlin, the power of the Kotlin standard library, and Java interoperability. Note that this course won't cover the programming fundamentals. ![]() The course is based on your Java experience it shows the similarities between the two languages and focuses on what's going to be different. ![]() We'll have a basic overview of the language, as well as a discussion of many corner cases, especially concerning Java interoperability. This course aims to share with you the power and the beauty of Kotlin. ![]() Kotlin code might be compiled not only to JVM bytecode but to JavaScript and Native code as well, but this course is focused on Kotlin/JVM. It’s a pragmatic language with a very low learning curve, and can be quickly grasped by Java developers. Kotlin is 100% compatible with all existing Java frameworks, and has good tooling support. It can be used almost everywhere Java is used today: for server-side development, Android apps, and much more. Kotlin is concise, safe, pragmatic, and focused on interoperability with Java code. The Kotlin programming language is a modern language that gives you more power for your everyday tasks.
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