Loop statements (29-42)

#include <iostream>
using namespace std;

// wap to print hello world 5 times

void hello_World_5_Times()
{
    for (int i = 1; i <= 5; i++)
        cout << "Hello World " << endl;
}

// wap to print natural numbers (1 to 10)

void natural_Numbers_1_to_10()
{
    for (int i = 1; i <= 10; i++)
        cout << i << endl;
}

// wap to print natural numbers in reverse order (10 to 1)

void rev_Natural_Numbers_10_to_1()
{
    for (int i = 10; i >= 1; i--)
    {
        cout << i << endl;
    }
}

// wap to find factorial of a number using while loop

void fact_While()
{
    int i = 1, num, fact = 1;

    cout << "enter number to find factorial : " << endl;
    cin >> num;

    while (i <= num)
    {
        fact = fact * i;
        i++;
    }
    cout << "Factorial of " << num << " is " << fact;
}

// wap to print fibonacci series until given terms

void fibonacci()
{
    int x = 0, y = 1, z = 0, num;

    cout << "Enter number to find fibanacci series upto that term : " << endl;
    cin >> num;

    while (z <= num)
    {
        x = y;
        y = z;
        z = x + y;
        cout << z << endl;
    }
}

// WAP to display the sum of n natural numebrs where n is entered by the user

void sum_Of_n_Natural_Num()
{
    int i = 1, num, sum = 0;

    cout << "Enter number to find sum of n natural numbers entered by the user : " << endl;
    cin >> num;

    while (i <= num)
    {
        sum = sum + i;
        i++;
        cout << sum << endl;
    }
}

// WAP to display reverse of any number using loop

void reverse_Of_Num()
{

    int rev = 0, num;

    cout << "Enter number to find its reverse : " << endl;
    cin >> num;

    while (num > 0)
    {
        rev = (rev * 10) + (num % 10);
        num = num / 10;
    }
    cout << "Reverse is : " << rev;
}

// WAP to sum all the numbers entered by the user until user enters 0

void sum_Of_All_Until_0()
{
    float sum = 0, num;
    do
    {
        cout << "Enter number : " << endl;
        cin >> num;
        sum = sum + num;
    } while (num != 0);
    {

        cout << " sum is : " << endl
             << sum;
    }
}

// WAP to display reverse of a five digit number {

// ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️
// ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️
// ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️
// ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️
// ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️
// ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️
// ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️

//}

// WAP to print numbers within the range given by the user

void num_Within_the_Range()
{
    int num1, num2;
    cout << "Enter first number : " << endl;
    cin >> num1;
    cout << "Enter last number : " << endl;
    cin >> num2;
    for (int i = num1; i <= num2; i++)
    {
        cout << i << endl;
    }
}

// WAP to print number table using multiplication operation

void table_Using_Multiplication_operation()
{
    int num;

    cout << "Enter number to find it's multiplication table" << endl;
    cin >> num;

    for (int i = 1; i <= 10; i++)
    {
        cout << num << " * " << i << " = " << num * i << endl;
    }
}

// WAP to print number table using Addition operation

void table_Using_Addition_operation()
{
    int num;

    cout << "Enter number to find it's multiplication table" << endl;
    cin >> num;

    for (int i = 1; i <= 10; i++)
    {
        cout << num << " + " << i << " = " << num + i << endl;
    }
}

// WAP to generate prime numbers series upto n numbers using for loop

void prime_Number_Upto_n()
{
    int num, count = 0;

    cout << "Enter number till which you want to find prime number : " << endl;
    cin >> num;

    for (int i = 2; i <= num; i++)
    {
        if (num % i == 0)
        {
            count = count + 1;
        }
        if (count > 1)
        {
            cout << num;
        }
    }
}

// WAP to find sum of all digits of a number using loop

void Sum_Of_All_Digits()
{
    int num, sum = 0;

    cout << "Enter number to find sum of all digits : " << endl;
    cin >> num;

    while (num > 0)
    {
        sum = sum + num % 10;
        num = num / 10;
    }
    cout << "sum  is : " << sum << endl;
}

int main()

{

    cout << "<_____________Enter number to run Program accordingly_____________> : " << endl;
    cout << endl;

    cout << "Enter 1 to print Hello World 5 times : " << endl;
    cout << "Enter 2 to print natural numbers (1 to 10) : " << endl;
    cout << "Enter 3 to print natural numbers in reverse order (10 to 1) : " << endl;
    cout << "Enter 4 to find factorial of a number using while loop : " << endl;
    cout << "Enter 5 to print Fabonacci series until given terms : " << endl;
    cout << "Enter 6 to display sum of n natural numbrers entered by the user : " << endl;
    cout << "Enter 7 to display reverse of any number using loop : " << endl;
    cout << "Enter 8 to sum all the numbers entered by the user until the user enters 0 : " << endl;
    cout << "Enter 9 to print reverse of 5 digit number using loop : " << endl;
    cout << "Enter 10 to print numbers within the range given by the user : " << endl;
    cout << "Enter 11 to print number table using Multiplication operation : " << endl;
    cout << "Enter 12 to print number table using Addition operation : " << endl;
    cout << "Enter 13 to generate Prime numbers series up to n numbers using for loop : " << endl;
    cout << "Enter 14 to find the sum of all digits of a digit using a loop : " << endl;
    cout << endl;

    int count;
    cout << "Enter here " << endl;
    cin >> count;

    switch (count)
    {
    case 1:
        hello_World_5_Times();
        break;
    case 2:
        natural_Numbers_1_to_10();
        break;
    case 3:
        rev_Natural_Numbers_10_to_1();
        break;
    case 4:
        fact_While();
        break;
    case 5:
        fibonacci();
        break;
    case 6:
        sum_Of_n_Natural_Num();
        break;
    case 7:
        reverse_Of_Num();
        break;
    case 8:
        sum_Of_All_Until_0();
        break;
    // case 9:
    //     ();
    //     break;
    case 10:
        num_Within_the_Range();
        break;
    case 11:
        table_Using_Multiplication_operation();
        break;
    case 12:
        table_Using_Addition_operation();
        break;
    case 13:
        prime_Number_Upto_n();
        break;
    case 14:
        Sum_Of_All_Digits();
        break;

    default:
        break;
    }
    return 0;
}