PROGRAM CODE: 

//Header section
#include <iostream>
#include <limits>
using namespace std;

// Function to validate if a value is within a specified range
bool validateRange(float value, float minRange, float maxRange)
{
    return (value >= minRange && value <= maxRange);
}

// Function to calculate the overall score for a dive
float calculateDiveScore(float degreeOfDifficulty, float scores[]) {
    // Constants for data ranges
    
    const float MIN_SCORE = 0.0;
    const float MAX_SCORE = 10.0;
    const float MIN_DIFFICULTY = 1.2;
    const float MAX_DIFFICULTY = 3.8;

    // Validate degree of difficulty
    if (!validateRange(degreeOfDifficulty, MIN_DIFFICULTY, MAX_DIFFICULTY)) {
        cout << "Invalid degree of difficulty. Please enter a value between " << MIN_DIFFICULTY << " and " << MAX_DIFFICULTY << endl;
        return 0.0;
    }

    // Variables to store highest and lowest scores
    float highestScore = numeric_limits<float>::lowest();
    float lowestScore = numeric_limits<float>::max();

    // Variables to calculate the sum of scores
    float sumOfScores = 0.0;

    // Find the highest and lowest scores, and calculate the sum of the remaining scores
    for (int i = 0; i < 7; i++) {
        // Validate individual scores
        if (!validateRange(scores[i], MIN_SCORE, MAX_SCORE)) {
            cout << "Invalid score. Please enter a value between " << MIN_SCORE << " and " << MAX_SCORE << endl;
            return 0.0;
        }

        if (scores[i] > highestScore) {
            highestScore = scores[i];
        }
        if (scores[i] < lowestScore) {
            lowestScore = scores[i];
        }

        sumOfScores += scores[i];
    }

    // Subtract the highest and lowest scores from the sum
    sumOfScores -= highestScore;
    sumOfScores -= lowestScore;

    // Calculate the overall score
    float overallScore = sumOfScores * degreeOfDifficulty * 0.6;

    return overallScore;
}
//Program starts with a main method
int main() 
{
    //Declare variables
    float degreeOfDifficulty;
    float scores[7];

    // Get the degree of difficulty from the user
    cout << "Enter the degree of difficulty (between 1.2 and 3.8): ";
    cin >> degreeOfDifficulty;

    // Get the scores from the user
    cout << "Enter the scores for the seven judges (between 0 and 10): " << endl;
    for (int i = 0; i < 7; i++) {
        cout << "Judge " << i + 1 << ": ";
        cin >> scores[i];
    }

    // Calculate the overall score for the dive
    float overallScore = calculateDiveScore(degreeOfDifficulty, scores);

    // Display the overall score
    cout << "The overall score for the dive is: " << overallScore << endl;

    return 0;
}

OUTPUT OF THE PROGRAM CODE:

Enter the degree of difficulty (between 1.2 and 3.8): 3.6
Enter the scores for the seven judges (between 0 and 10): 
Judge 1: 9
Judge 2: 10
Judge 3: 8.5
Judge 4: 6.5
Judge 5: 3
Judge 6: 8
Judge 7: 9
The overall score for the dive is: 88.56