Shara prog

#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;

void showInfo()
{

    cout << "Hi, Andrew! This should be my personal information for the lecturer to see, lol\n";

}

void Q1()
{

    int EquationChoice;
    double s,u,t,a;

    do
    {
        cout << "\nEquation of motion - SUAT\n"
            << "1. Find s\n"
            << "2. Find a\n"
            << "3. Return to main menu\n"
            << "Option: ";
        cin >> EquationChoice;
        switch (EquationChoice)
        {
        case 1:
            cout <<"Input the vale of u: ";
            cin >> u;
            cout <<"Input the vale of t: ";
            cin >> t;
            cout <<"Input the vale of a: ";
            cin >> a;
            s = u*t+ 0.5*a*t*t;
            cout << "The value of s is " << fixed << setprecision(3) << s << " units\n";
            break;
        case 2:
            cout <<"Input the vale of u: ";
            cin >> u;
            cout <<"Input the vale of t: ";
            cin >> t;
            cout <<"Input the vale of s: ";
            cin >> s;
            a = (2*(s-u*t))/(t*t);
            cout << "The value of a is " << fixed << setprecision(3) << a << " units\n";
            break;
        case 3:
            cout << "Goodbye!!";
            break;
        default:
            cout <<"Please enter choice 1 - 3 only.\n";
        }
    }while (EquationChoice!=3);
}

void Q2()
{
    int number, SmallestEven=0, LargestOdd=0;


    do{
        cout << "Please input an integer: ";
        cin >>number;
    if (SmallestEven==0 || LargestOdd ==0)
    {
        if (number%2 ==0)
            SmallestEven=number;
        else
            LargestOdd=number;
    }
    else
    {
        if (number%2 ==0){
            if(number<SmallestEven && number>0)
                SmallestEven=number;}
        else{
            if(number>LargestOdd)
                LargestOdd=number;}
    }
    }while(number>0);

    cout << "The smallest even number of all your input integers is " << SmallestEven << endl;
    cout << "The largest odd number of all your input integers is " << LargestOdd << endl;

    cout << "\nMultiples:\n";

    int i,j,k;
    for(i=0;i<=40;i+=10){
        for(j=1;j<=10;j++){
            cout << setw(3) << right << i+j;
            if((i+j)%10==0)
                cout << endl;}
        for(k=1;k<=10;k++){
            if ((k+i)%SmallestEven==0 && (k+i)%LargestOdd==0)
            {
                cout << setw(3) << right << "&";
            }
            else if ((k+i)%SmallestEven==0)
                cout << setw(3) << right << "B";
            else if ((k+i)%LargestOdd==0)
                cout << setw(3) << right << "A";
            else
                cout << setw(3) << right << " ";
            if((i+k)%10==0)
                cout << endl << endl;
        }
    }

}

void Q3()
{



}

int main(){
    int prog_choice;

    showInfo();

    do {
        cout << endl;
        cout << "Assignment One - Program Selection Menu" << endl;
        cout << "---------------------------------------" << endl;
        cout << "Enter the program choice: ";
        cin >> prog_choice;
        switch (prog_choice){
            case 1: Q1(); break;
            case 2: Q2(); break;
            case 3: Q3(); break;
            case 4: break;
            default:
                cout << "Please enter option 1 - 4 only." << endl;
                break;
        }
    } while (prog_choice != 4);

    cout << "Program terminates. Good bye!" << endl;
    return 0;
}