Solution: Leetcode 21 Solving the Merge Two Sorted Lists Problem in Python
You are given the heads of two sorted linked lists, list1 and list2. Merge the two lists into one sorted list. The list should be made by splicing together the nodes of the first two lists. Return the head of the merged linked list.
LeetCode 155: Min Stack – Constant Time Minimum Lookup
The key insight isn’t about finding the minimum quickly—it’s about remembering the minimum as the stack evolves. By maintaining a second stack that mirrors the main stack and stores the minimum value at every level, we eliminate the need to recompute the minimum after every pop().
Solution: Leetcode 682 Solving a Baseball Scoring Puzzle with Python
You are keeping the scores for a baseball game with a unique set of rules. At the beginning of the game, you start with an empty record. You're given a list of strings operations, where each element represents an operation to apply to the record.
Solution: Leetcode 1929 Solving the Array Concatenation Problem in Python
You are given an integer array nums of length n. The task is to create a new array ans of length 2n such that ans[i] == nums[i] and ans[i + n] == nums[i] for 0 <= i < n (0-indexed). In simpler terms, the array ans is formed by concatenating two copies of the array nums.
Solution: Leetcode 26 Removing Duplicates from Sorted Array in Python
The problem at hand is to remove duplicates from a sorted integer array nums in-place, such that each unique element appears only once. Additionally, we need to return the number of unique elements present in the modified array.
Solution: LeetCode 88 Merge Sorted Array
You are given two integer arrays nums1 and nums2, sorted in non-decreasing order, and two integers m and n, representing the number of elements in nums1 and nums2 respectively. Merge nums1 and nums2 into a single array sorted in non-decreasing order.
How to - Handle Process Environment Variables in TypeScript: A Comprehensive Guide with Code
In this article, we cover various techniques for handling process environment variables in TypeScript, such as using type assertions, creating typed configuration objects, using type guards, and leveraging configuration libraries like dotenv and dotenv-safe.
How to add new Cognito users automatically to a group on sign up - AWS Cognito, Lambda
We will set up a Post Confirmation lambda trigger for adding new users automatically to a certain group. in this guide, we will implement the code for the said function, assign permissions and attach the Lambda function to the Cognito user pool.
Solved - Type 'x' is not assignable to type 'never' using TypeScript in React
This error occurs when you have not explicitly given a type to a value. Resulting in the implicit assignment of the type "never" to the value. The "never" type always expects the value to the empty and throws an error when its not empty.
Solved - Type x is missing the following properties from type y using TypeScript in React
This error occurs when you are not passing all the required props or only passing some of the required props to the component. Pass all the props or define the typing of the component accordingly to handle this error.
