#include <iostream>
using namespace std;

// Function to calculate factorial recursively
int factorial(int n) {
    if (n == 0 || n == 1) {
        return 1;
    } else {
        return n * factorial(n - 1);
    }
}

int main() {
    int number;

    // Input the number from the user
    cout << "Enter a non-negative integer number: ";
    cin >> number;

    // Calculate and display the factorial of the number
    cout << "Factorial of " << number << " is: " << factorial(number) << endl;

    return 0;
}

#include <iostream> 
using namespace std; 
 
int mostFrequent(const int arr[], int size)  
{ 
    int mostFrequentNum = arr[0]; 
    int maxFrequency = 1; 
 
    for (int i = 0; i < size; ++i)  
 { 
        int currentNum = arr[i]; 
        int currentFrequency = 1; 
 
        for (int j = i + 1; j < size; ++j)  
  { 
            if (arr[j] == currentNum)  
   { 
                currentFrequency++; 
            } 
        } 
 
        if (currentFrequency > maxFrequency)  
  { 
            mostFrequentNum = currentNum; 
            maxFrequency = currentFrequency; 
        } 
    } 
 
    return mostFrequentNum; 
} 
 
int main()  
{ 
    int numbers[] = {1, 2, 3, 2, 3, 4, 2, 5}; 
    int size = sizeof(numbers) / sizeof(numbers[0]); 
 
    int result = mostFrequent(numbers, size); 
 
    cout << "The most frequent number is: " << result << endl; 
 
    return 0; 
}

#include <iostream>
using namespace std;

// دالة لحساب مجموع أربعة متغيرات من نوع long
long sum(long a, long b, long c = 0, long d = 0) {
    return a + b + c + d;
}

int main() {
    // تعيين أرقام ثابتة للاختبار
    long num1 = 10;
    long num2 = 20;
    long num3 = 30;
    long num4 = 40;

    // طريقة 1: استدعاء دالة sum() مع أربع متغيرات
    long result1 = sum(num1, num2, num3, num4);
    cout << "Method 1: Sum of " << num1 << ", " << num2 << ", " << num3 << ", " << num4 << " is: " << result1 << endl;

    // طريقة 2: استدعاء دالة sum() مع ثلاث متغيرات
    long result2 = sum(num1, num2, num3);
    cout << "Method 2: Sum of " << num1 << ", " << num2 << ", " << num3 << " is: " << result2 << endl;

    // طريقة 3: استدعاء دالة sum() مع متغيرين
    long result3 = sum(num1, num2);
    cout << "Method 3: Sum of " << num1 << ", " << num2 << " is: " << result3 << endl;

    return 0;
}

#include <iostream>
using namespace std;

int p ( int *ptr){
    *ptr+= 1;
    return *ptr;
}
int main() {
   int m = 5;
   
     cout << p(&m) << endl;
      cout << m << endl;
      cout << p(&m) << endl;
}

#include <iostream>
using namespace std;

int main() {
   int arr[] = {5, 7, 9};
   
         cout << *(arr+2) << endl;
}

#include <iostream>
using namespace std;

int main() {
   int arr[5] = {3, 5 , 7, 9, 11};

    for (int i = 0; i < 5; i++){
         cout << *(arr+i) << ", ";
    }
    cout<<endl;
}

#include <iostream>
using namespace std;

void first(int *a, int *b){
    int temp;
    temp = *a;
    *a = *b;
    *b = temp;
}

int main()
{
   int m = 5, n = 3;
   first(&m, &n);

   cout << m << ", "<< n <<endl;

    return 0;
}

#include <iostream>
using namespace std;

void first(int &a, int &b){
    int temp;
    temp = a;
    a = b;
    b = temp;
}

int main()
{
   int m = 5, n = 3;
   first(m,n);

   cout << m << ", "<< n <<endl;

    return 0;
}

#include <iostream>
using namespace std;

struct numb {
    int a, b;
};
void swapp(numb &num) {
    int temp;
    temp = num.a;
    num.a = num.b;
    num.b = temp;
}

int main() {
    numb num ={9 ,5};
    swapp(num);
    cout << num.a << ", " << num.b << endl;
}

#include <iostream>
using namespace std;

int* Arr(int rar[3]) {
    for (int i = 0; i < 3; ++i) {
        cout << rar[i] <<", ";
    }
    cout<<endl;
    return rar;
}

int main() {
    int A[3] = {5, 3, 8};
    int* rar = Arr(A);
    return 0;
}

#include <iostream>
using namespace std;

struct personweight {
    string name;
    float weight;

    void printStatus() {
        if (weight > 75) {
            cout << name << " you are overweight" << endl;
        } else {
            cout << name << " you are fit" << endl;
        }
    }
};

int main() {
    personweight person1;
    person1.name = "John";
    person1.weight = 80;

    personweight person2;
    person2.name = "Alice";
    person2.weight = 70;

    person1.printStatus();
    person2.printStatus();

    return 0;
}

personweight person1 = {"Alice", 70};

personweight person2 = {"John", 80};

#include <iostream>
using namespace std;
class bank {
    public :
    string AccountHolder;
    int AccountNumber;
    double balance;

    void deposit (double amount) {
        balance += amount;
   }
   void withDrawal(double amount) {

       if (balance > amount ){
        balance -= amount;
       }
       else {
        cout << "balance < amount "<<endl;
       }
   }
   void display (){
   cout << "AccountHolder : " << AccountHolder << ", AccountNumber : " << AccountNumber << ", balance : " << balance << endl;
   }
};


int main()
{

    bank s1 = {"am0m", 3456, 360.50};
    s1.deposit(50.9);
    s1.withDrawal(33.6);
    s1.display();
    return 0;
}