A prime number is a positive integer greater than 1 that has no positive divisors other than 1 and itself. This example demonstrates an optimized approach checking factors up to √n.
The Fibonacci sequence is a series where each number is the sum of the two preceding ones, starting from 0 and 1. Here we implement iterative generation and generator streaming.
Calculate the factorial of a non-negative integer (n!) using both recursive and iterative paradigms, handling base cases safely.
Explore the fastest and most idiomatic ways to reverse a string in Python, including slicing, reversed() iterator, and the two-pointer approach.
Check whether a string or integer reads the same forwards and backwards, with case and whitespace sanitization.
Binary Search finds the target element in a sorted list by repeatedly dividing the search interval in half.
Find two indices in an array whose values sum to a specific target in optimal O(N) linear time using a hash map lookup.
Find the longest contiguous palindromic substring in a given string using the Expand Around Center technique.
Sort and merge overlapping interval pairs into disjoint sets using an efficient greedy scan.