Program to print Lower triangular and Upper triangular matrix of an array

Given a two dimensional array, Write a program to print lower triangular matrix and upper triangular matrix. Lower triangular matrix is a matrix which contains elements below principle diagonal including principle diagonal elements and rest of the elements are 0. Upper triangular matrix is a matrix which contains elements above principle diagonal including principle diagonal elements and rest of the elements are 0. Program to print Lower triangular and Upper triangular matrix of an array: https://www.geeksforgeeks.org/program-print-lower-triangular-upper-triangular-matrix-array/