C++ Function to Reshape the Matrix
In MATLAB, there is a very useful function called ‘reshape’, which can reshape a matrix into a new one with different size but keep its original data. You’re given …
Category: math
How to Convert Integer to Base7?
Given a integer, convert it to its base 7 representation in string format. For example, 101 = (202)7 and -7 = (-10)7 Recursive Approach to Convert Integer to Base7 …
Algorithm to Add Two Strings Numerically in C++
Given two non-negative integers represented by strings, return the sum of both. You should not use any BigInteger library nor convert the inputs to integer types directly, as the …
How to Find Largest Triangle Area using Shoelace Formula?
You have a list of points in the plane. Return the area of the largest triangle that can be formed by any 3 of the points. Example: Input: points …
How to Transpose a 2D Matrix?
Given a 2D Matrix, return the transpose of it. The transpose of a matrix is the matrix flipped over it’s main diagonal, switching the row and column indices of …