Emily Rosemary Collins

💡 Problem Formulation: This article aims to address the challenge of finding the minimum sum subsequence from an array where at least one element must be chosen from every three consecutive elements. For instance, given an input like [1, 2, 3, 4, 5, 6], a desired output would be 10, since the sum of the … Read more

💡 Problem Formulation: We want to create a program that takes a list of fractions and counts the number of unique pairs that sum up to 1. For instance, given the input fractions [1/3, 2/3, 1/2, 3/4, 1/4], the desired output is 2 since there are two pairs (1/3 and 2/3, 1/4 and 3/4) that … Read more

💡 Problem Formulation: In Python, given a two-dimensional array or matrix of numbers, we aim to find the nth smallest element among all the elements. For instance, if we have a matrix like [[3, 1],[4, 2]] and we want to find the 2nd smallest number, the desired output is 2. Method 1: Complete Sorting This … Read more

💡 Problem Formulation: Given an array of integers, we seek an efficient program in Python to find two pairs (a, b) and (c, d), such that the absolute difference between the sums of the pairs (a+b) and (c+d) is minimized. For instance, for the input array [1, 3, 4, 7], a desirable output might be … Read more

💡 Problem Formulation: The task is to determine the maximum sum achievable from two non-overlapping sublists within a single list of integers. For example, given the list [1, 0, 3, 4, 2, 5] and sublist lengths of l1=1 and l2=2, the desired output is 9, which comes from sublists [4] and [2, 5], yielding the … Read more

💡 Problem Formulation: The challenge involves writing a Python program that maximizes an additive score by deleting elements from a list. For each number, when deleted, it adds to the score the product of the nearest remaining neighbors. Given an input list of integers, the goal is to delete the elements sequentially to maximize the … Read more

💡 Problem Formulation: This article addresses the task of creating a Min-Max game tree in Python, which is a fundamental algorithm for making decisions in two-player, zero-sum games. These games, like Tic-Tac-Toe or Chess, require an AI to evaluate all possible moves and choose the one that maximizes its chances of winning while minimizing the … Read more

💡 Problem Formulation: It is often necessary to determine the presence of a specific target value within a structured two-dimensional array, or a matrix. Given a matrix represented as a list of lists in Python and a target integer, the task is to verify whether the target value exists within the matrix. For example, if … Read more

💡 Problem Formulation: We seek efficient Python solutions to find all sublists of a given length k within a list, such that the average of the elements in each sublist is greater than or equal to a specified target value. For instance, given a list [1, 2, 3, 4, 5], length k=3, and target average … Read more

💡 Problem Formulation: The task at hand involves determining the minimum number of swap operations required to sort a given sequence of numbers into ascending order in Python. For instance, given the input sequence [3, 2, 1], the desired output is 2 swaps to sort the sequence into [1, 2, 3]. This article explores various … Read more

💡 Problem Formulation: The challenge involves writing a program in Python to determine the kth smallest string of length n, ordering strings in lexicographical order (i.e., dictionary order). For example, if n is 3 and k is 5, the desired output is ‘aae’ since this is the 5th string in lexicographical order with length 3 … Read more

💡 Problem Formulation: We want to write a Python program that can find the largest number that is not greater than a given non-negative integer n, where all the digits of this number are in non-decreasing order (each digit is greater than or equal to the previous one). For example, if our input is 135, … Read more