Emily Rosemary Collins

💡 Problem Formulation: You have a list, and you need to find an element that is immediately followed by a specific value ‘k’. Given the list [1, 3, 5, 7, ‘k’, 9], and the target value ‘k’, you want to extract the element ‘7’ that precedes ‘k’. This article outlines five different methods to accomplish … Read more

💡 Problem Formulation: When working with dataset containing time series data, a common task is to filter records based on time criteria. For example, you may have a DataFrame of stock prices and you wish to filter out entries that fall outside of regular trading hours or beyond a certain date range. The desired output … Read more

💡 Problem Formulation: A palindrome is a sequence that reads the same backward as forward. In Python, we often encounter scenarios where we need to check if a list is a palindrome. A list is considered a palindrome if the sequence of its elements is symmetrical. For example, the list [1, 2, 3, 2, 1] … Read more

💡 Problem Formulation: Given a dataset, often in the form of a list of lists or a 2D array, we need to find the row where the difference between the highest (maximum) and lowest (minimum) values is the smallest. This can be crucial for pinpointing uniform distributions of data or detecting anomalies. For example, we … Read more

💡 Problem Formulation: This article guides Python developers on different methodologies to filter out palindromic elements from a list. Palindromes are words or phrases that read the same backward as forward, like “radar” or “level”. Given a list such as [‘python’, ‘refer’, ‘did’, ‘hello’, ‘noon’], the expected output after removing palindromic elements would be [‘python’, … Read more

💡 Problem Formulation: When arranging seating for an event or managing space effectively, it’s crucial to find the maximum distance between occupied and unoccupied seats. For example, given an arrangement like 1010001001, where ‘1’ represents an occupied seat and ‘0’ represents an empty seat, the maximum distance to the nearest occupied seat for any empty … Read more

💡 Problem Formulation: The task is to calculate the “super digit” of a given number. In mathematics, the super digit of a number is the single-digit result obtained by recursively summing the digits until only one digit remains. For example, if the input is 9875, the super digit is 2 because 9+8+7+5 = 29 and … Read more

💡 Problem Formulation: In computational geometry, verifying whether a set of points forms a convex hull is a common task. This involves checking if all the points in a given set are either on the boundary of the convex hull or inside it. The input is typically an array of points in the 2D plane, … Read more

💡 Problem Formulation: Ensuring data integrity is crucial when dealing with postal addresses as part of a larger system, like e-commerce platforms or location-based services. The objective is to verify if a given string conforms to a standard postal address format. For example, an input of “12345” should be validated against a known postal code … Read more

💡 Problem Formulation: Given two lists of numbers, the task is to write a Python program to identify the numbers that are in one list but not the other. It’s a common comparison problem that could arise in data analysis or during coding competitions. For example, if List A = [1, 2, 3, 4] and … Read more

💡 Problem Formulation: Calculating the number of ways to sum a given set of coin denominates to a total of N rupees is a common problem in both computer science and practical scenarios. Imagine you have coins of 1, 5, 10 rupee denominations, and you want to know in how many ways you can combine … Read more

💡 Problem Formulation: You’ve got a list of words and you want to calculate a score for each word based on a certain criterion. For example, one common scoring system assigns a point value to each letter (e.g., a=1, b=2, …, z=26) and sums them to get the total word score. Given an input list … Read more