Guys help me with this?? ASAP THANKSS!!

Question

Construct a menu driven program that outputs the sum,
difference, product and quotient of 2 entered numbers. Let the
items below be the different  options:
1 - Sum
2 - Difference
3 - Product
4 - Quotient
5 - Exit

Answer 1

this is a simple program to run your exercice,hope that will be hopful for you

#include <stdio.h>

void main() {
    char opt;
    int num1,num2;
    printf("Enter the first Integer: ");
    scanf("%d",&num1);
    printf("Enter the second Integer: ");
    scanf("%d",&num2);
    printf("\nInput your option :\n");
    printf("(+) Addition.\n(-)  Substraction.\n(*) Multiplication.\n(/) Division.\n(E)  Exit.\n");
    scanf("%s",&opt);
    if(opt='+')
        printf("The Addition of  %d and %d is: %d\n",num1,num2,num1+num2);
        exit(0) ;
    if(opt='-')    
        printf("The Substraction of %d  and %d is: %d\n",num1,num2,num1-num2);
        exit(0) ;
    if(opt='*')  
        printf("The Multiplication of %d  and %d is: %d\n",num1,num2,num1*num2);
        exit(0) ;
    if(opt='/'){
        if(num2==0) {
          printf("The second integer is zero. Devide by zero.\n");
          exit(1) ;
        } else {
          printf("The Division of %d  and %d is : %d\n",num1,num2,num1/num2);
          exit(0) ;
        }
    }
    if(opt='E')
        printf("exit");
        exit(1) ;
}

Answer 2

#include<iostream>
#include<conio.h>

using  namespace std;

void menu() {
    cout << "\n1 - Sum\n2 - Difference\n3 - Product\n4 - Quotient\n5 - Exit\n";
}

void main() {
    unsigned short input = 0;
    float num1 = 0.f, num2 = 0.f;

    do {
        menu();
        cout << "->";
        cin >> input;

        switch (input) {
        case 1:
            cout << "Give number 1 : ";cin >> num1;
            cout << "Give number 2 : ";cin >> num2;
            cout << num1 << '+' << num2 << "=" << (num1 + num2)<<endl;
            _getch();
            break;
        case 2:
            cout << "Give number 1 : ";cin >> num1;
            cout << "Give number 2 : ";cin >> num2;
            cout << num1 << '+' << num2 << "=" << (num1 - num2) << endl;
            _getch();
            break;
        case 3:
            cout << "Give number 1 : ";cin >> num1;
            cout << "Give number 2 : ";cin >> num2;
            cout << num1 << '+' << num2 << "=" << (num1 * num2) << endl;
            _getch();
            break;
        case 4:
            cout << "Give number 1 : ";cin >> num1;
            cout << "Give number 2 : ";cin >> num2;
            cout << num1 << '+' << num2 << "=" << (num1 / num2) << endl;
            _getch();
            break;
        case 5:
            cout << "Goodbye my friend."<<endl;
            _getch();
            break;
        default:
            cout << "No such option ! \a\a\n\n";
            break;
        }
    } while (input != 5);
}