Transpose a Matrix
Given a matrix of N dimensions, and we need to transpose it. One of the standard problem on matrices. Don’t confuse Transpose with Rotation, the rotation is normally performed on…
C++
How the bits/stdc++ .h works in C++
I often wonder, How does #include < bits/stdc++.h> work?. I’ve seen this while solving competitive problems and referring to various solutions and I wanted to know what’s happening in the…
Perform Set Operations on Arrays
In this problem, we’ll be performing some basic set operations on the given arrays like Union, Intersection, and Difference. I found this problem when I was writing a practice test…
Target Sum – Single Iteration O(N)
Given, a sorted array of elements and we need to find all the pairs of elements that add up equally to a given target sum number, this can be done…
Sum of Numbers in a String
Today, I found a problem where we need to find the sum of numbers in a string, the string will be a mix of alphabets, numbers, and special characters, and…
Squares of a Sorted Array LeetCode O(N)
In this problem, given a sorted array in decreasing order and we should return the squares of each number and in the same ascending order, and the one thing we…