Write a C++ function named countBetween that accepts an integer array, the number of elements in the array, and two integers a and b as a parameter. The function should return the number of values in the array between a and b (inclusive). For instance, running the following code in the main function should print 3, 0, 2, and 5.

int a[] = { 3,7,9,15,4,6 };

cout << countBetween(a, 6, 7, 4) << endl;

cout << countBetween(a, 6, 10, 14) << endl;

cout << countBetween(a, 6, 5, 8) << endl;

cout << countBetween(a, 6, 9, 2) << endl;