homeWokr_6_forst_part

// HomeWork_6.cpp
//

#include <iostream>
using namespace std;
void task_1()
{
    //the sum of all numbers
    int sum = 0;
    int a, i;
start_1:
    cout << "Please enter a number from 1 to 500 - ";
    cin >> a;
    if (a < 0 || a > 500)
    {
        goto start_1;
    }
    i = a;
    for (; i < 501; i++)
    {
        sum = sum + a;
        cout << i << " - " << sum << "\n";
    }

}

void task_2()
{
    //exponentiation
    int x,y,z;
    cout << "Enter x - ";
    cin >> x;
    cout << "Enter y - ";
    cin >> y;
    z = x;
    for (int i = x; i < y; i++)
    {
        z *= x;
    }

    cout << "The exponentiation of x - " << z << "\n";
}
void task_3()
{
    //average
    int a = 1;
    int sum = 0,average;
    for (; a <= 1000; a++)
    {
        sum = sum + a;
    }
    average = sum / 1000;
    cout << "The average is - " << average << "\n";
}
void task_4()
{
    //product of all numbers
    int num,product;
    cout << "Please enter a number from 1 to 20\n";
    cin >> num;
    for (int i = num; i < 21; i++)
    {
        num = num * i;
        product = num;
        cout << "\n " << product << "\n";

    }
    cout << "The product is - " << product << "\n";
}
void task_5()
{
    //multiplication table
    int num,res;
    cout << "Please enter a number from 1 to 9 - ";
    cin >> num;
    for (int i = 2; i < 11; i++)
    {
        res = num * i;
        cout << num << " x " << i << " = " << res << "\n";
    }

}
int main()
{
    //Task_1
    task_1();
    //Task_2
    task_2();
    //Task_3
    task_3();
    //Task_4
    task_4();
    //Task_5
    task_5();
}