write c++ program using while statement

Exercise #1: Double Pay An employee working at a company, earns one dirham on his first day. However, for every day that passes, their base amount doubles, so he earns two dirhams on the second day and four dirhams on the third day (totaling 7 dirhams). Given a number of days, return how many dirhams the employee accumulates. Sample input/output: Enter the number of days: 5 The accumulated dirhams are: 31