Write a program to compute the following sum: 1/n + 2/(n-1) + 3/(n-2) + .... +(n-1)/2 + n/1 where n is a positive integer enter by the user. Display the result to the 3rd decimal place. For example, 1) If n=2, the output should be 2.500 2) If n=4, the output shold be 6.417 

using c++ in linux