Problem Statement:

Write a C++ program that initializes an array of five double values: {1.3, 2.4, 4.5, 6.7, 9.0}.Perform the following operations on the array:

1. Use the std::fill function to fill the first three elements with 5.5.
2. Use the std::fill_n function to fill the first four elements with 6.9.
3. Print the final array after applying both functions.

Example Output:Final array: 6.9 6.9 6.9 6.9 9

Explanation:

• The first 3 elements are initially replaced by 5.5 using std::fill.
• The first 4 elements are then overwritten by 6.9 using std::fill_n.
• The last element remains unchanged as 9.0.