C++ Code

// ConsoleApplication1.cpp : This file contains the 'main' function. Program execution begins and ends there.
//
//==========================================================================================================
//Name:         MathCon
//Author:       Craig D Cartwright
//Version:      1.0
//Copyright:    CDC 2020
//Description:  A small console application performing mathematical operations
//
//===========================================================================================================

#include <iostream>
#include <algorithm>
#include <stdio.h>
#include <vector>
using namespace std;
void quick_sort(int[], int, int);
int partition(int[], int, int);


//Variables
//const int SIZE = 50;
string name; //A string called name which we can store a name
int age; //A integer called age allowing to store a persons age
int math; //A integer for the menu options
int values;
int CountNumbers;
int largest;
int smallest;
int result;
int i, max, min, size;


int main()
{
    //Code for entering and storing name
    cout << "Welcome, what is your name?\n"; //This asks the user their name and then indicates to start a new line (\n)
    cin >> name; //This takes the input from the previous line and stores in the name string.
    cout << "Thank you " << name << "! Welcome to the MathCon App" << endl; //

    //Code for entering and storing age
    cout << "How old are you " << name << "??\n"; //Asks user for their age
    cin >> age; //This takes the users age input and stores in the age integer
    cout << "Ah, so that means that you are " << age << " then " << name << "!\n"; //makes a comment about the age.

    //Code for entering integers into the console app
    int a[50], n, i; //Initalise an array for up to 50 integers
    cout << "How many Integers would you like to enter?\n";
    cin >> n;//Stores the user value into n
    cout << "Please enter your integers...\n";//asks the user to enter their chosen numbers...

    for (i = 0; i < n; i++)
        cin >> a[i];

    quick_sort(a, 0, n - 1);
    cout << "\nYour integers after sorting in ascending order are: " << endl;

       for (i = 0; i < n; i++)
        cout << a[i] << " " << endl;

    //Mathematical Operations

       cout << name << " please choose from the options below \n" << //This asks the user their name and then indicates to start a new line (\n)
           "1. Display the Count of the Integers input \n" <<
           "2. Display the Lowest and Highest Integers input \n" <<
           "3. Calculate the Range of the Integers input \n" <<
           "4. Calculate the Mean of the Integers input \n" <<
           "5. Calculate the Median of the Integers input \n" <<
           "6. Exit the program \n" <<
           "7. Enter new Integers \n";
       cin >> math;

    //Switch Decisions for Menu Options

       switch (math)
       {
       case 1: //Display the Count of the Integers Input
       {
           cout << "The Total Number of Integers entered is " << i << "\n";
           break;
       }
       case 2: //Display the Lowest and Highest Integers input

           vector<int> getLargestAndSmallestNumFromVector(vector<int> input) {

               int min = input[0];
               int max = input[0];

               for (int i = 0; i < input.size(); i += 1) {

                   int checkSum = input[i];

                   if (checkSum < min) {
                       min = checkSum;
                   }

                   if (checkSum > max) {
                       max = checkSum;
                   }
               }

               vector<int> result;
               result.push_back(min);
               result.push_back(max);
               return result;
           }
           cout << "\nThe largest value entered is " << max << endl;
           cout << "\nThe smallest value entered is " << min << endl;
       }
       }

    }



void quick_sort(int a[], int l, int u)
{
    int j;
    if (l < u)
    {
        j = partition(a, l, u);
        quick_sort(a, l, j - 1);
        quick_sort(a, j + 1, u);
    }
}

int partition(int a[], int l, int u)
{
    int v, i, j, temp;
    v = a[l];
    i = l;
    j = u + 1;

    do
    {
        do
            i++;

        while (a[i] < v && i <= u);

        do
            j--;
        while (v < a[j]);

        if (i < j)
        {
            temp = a[i];
            a[i] = a[j];
            a[j] = temp;
        }
    } while (i < j);

    a[l] = a[j];
    a[j] = v;

    return(j);


}






// Run program: Ctrl + F5 or Debug > Start Without Debugging menu
// Debug program: F5 or Debug > Start Debugging menu

// Tips for Getting Started:
//   1. Use the Solution Explorer window to add/manage files
//   2. Use the Team Explorer window to connect to source control
//   3. Use the Output window to see build output and other messages
//   4. Use the Error List window to view errors
//   5. Go to Project > Add New Item to create new code files, or Project > Add Existing Item to add existing code files to the project
//   6. In the future, to open this project again, go to File > Open > Project and select the .sln file