Write a program using while loops harmonia.cpp (see instructio number n and prints the n'th harmonic number defined as: ns below) which re 1 +1/2 1/3+ 1 rite a program using while loops diagona12.cpp (see instructions below) which number n and displays a triangle with n rows consisting of the character + and x chara example, if the user enters the value of 5 for n, then the program will display 5 rows O characters: #x tx