5 Best Ways to Find the Number of Different Integers in a String Using Python

πŸ’‘ Problem Formulation: We are often faced with the challenge of extracting numerical information from text. Specifically, this article addresses the task of counting the number of unique integers present in a given string. For instance, given the input string “abc123def111gh22”, the desired output is 3, corresponding to the unique integers 123, 111, and 22. … Read more

5 Best Ways to Determine the Color of a Chessboard Square using Python

πŸ’‘ Problem Formulation: Chessboard squares alternate in color between light and dark. Given an input in the form of a chessboard square identifier (e.g., ‘a1’, ‘d5’), we want to programatically determine whether that square is light or dark. The desired output would be a string “light” or “dark”. Method 1: Using Basic Arithmetic and Modulus … Read more

5 Best Ways to Find K Partitions After Truncating Sentence Using Python

πŸ’‘ Problem Formulation: This article aims to solve the challenge of dividing a given sentence into k partitions after truncation. For instance, given the sentence “The quick brown fox jumps over the lazy dog” and a partition number k=3, the desired output would be three truncated partitions of similar lengths. We will explore different methods … Read more

5 Best Ways to Find Minimum Operations to Make an Array Increasing using Python

πŸ’‘ Problem Formulation: This article tackles the challenge of computing the minimum number of operations needed to transform a given array into a strictly increasing sequence. Each operation can increment a selected element by 1. For instance, given an input array [1, 2, 1], the desired output after making the array strictly increasing is [1, … Read more

5 Best Ways to Replace All Digits with Characters in Python

πŸ’‘ Problem Formulation: When working with strings in Python, one may encounter a scenario where it’s necessary to replace each digit with a specific character. Consider the input string ‘Hello2World8’, the desired outcome would be to replace the digits such as ‘2’ and ‘8’ with a character, for example, an asterisk ‘*’, resulting in ‘Hello*World*’. … Read more