In C++ please

In the sport of diving, seven judges award a score between 0 -10. Each score may be a double value. The scores are added together, with the highest and lowest scores are thrown out. This sum is then multiplied by the degree of difficulty for the dive. The degree of difficulty ranges from 1.2 to 3.8 points. The result is then multiplied by 0.6 to determine the divers final score.

You are to write a program which calculates a divers final score, accepting the degree of difficulty and individual judge scores as input from the user.

Your solution is to have the following functions defined:

void getDegree(double& degree)

This function accepts one ref parameter to be updated by the function. The function prompts the user for a degree of difficulty, reprompting the user until a valid value is entered, and returns the result in the reference parameter.

void getScores(double scores[], int numScores)

This function accepts two parameters, a double array and the length of that array. The function prompts the user for scores, and fills the array. The function should make sure that the user enters valid scores.

double sum(const double scores[], int numScores)

This function accepts two parameters, a double array and the length of that array. This function accepts one double array as a parameter, and returns the sum of the array.

double highest(const double scores[], int numScores)

This function accepts two parameters, a double array and the length of that array. The function returns the largest value in the array.

double lowest(const double scores[], int numScores)

This function accepts two parameters, a double array and the length of that array. The function returns the smallest value in the array.

double average (vector finals)

This function accepts one vector parameter, and returns the average of all values in the vector.