Write a c++ programs for pointer.

 #include <iostream>

int main() {

  int num = 5;

  int *ptr;

  // Assign the address of num to ptr

  ptr = &num;

  // Access the value of num through the pointer

  std::cout << "The value of num is " << *ptr << std::endl;

  // Modify the value of num through the pointer

  *ptr = 6;

  std::cout << "The modified value of num is " << num << std::endl;

  return 0;

}

output :

The value of num is 5

The modified value of num is 6