Today, I delved into a series of LeetCode challenges.
First Bad Version: In this challenge, I encountered a classic binary search problem. The goal was to find the first "bad" version among a sequence of versions. By efficiently narrowing down the search space using binary search, I was able to solve the problem in a time-efficient manner.
Single Element in a Sorted Array: This challenge revolved around finding the single element that appears only once in a sorted array, while all other elements appear twice. To tackle this, I utilized binary search again to determine the pattern and locate the single element efficiently.
Add Digits: The "Add Digits" challenge presented an interesting mathematical problem. The task was to repeatedly add the digits of a number until a single-digit result was achieved. By understanding the pattern, I employed a simple mathematical formula to arrive at the solution.
Search Insert Position: The "Search Insert Position" challenge involved finding the position where a target element would be inserted in a sorted array. Employing binary search, I efficiently determined the position while considering various edge cases.
Binary Search: This challenge required implementing the binary search algorithm from scratch. By carefully partitioning the search space, I successfully found the target element and its index.
Defanging an IP Address: In this challenge, I learned a neat trick for IP address manipulation. The goal was to replace periods in an IP address with "[.]". A simple string manipulation approach effectively transformed the address.
Day 27 has been a rewarding experience filled with diverse LeetCode challenges. From binary search to string manipulation, these challenges have broadened my problem-solving toolkit.