53. Double Pointer

You are given two integer variables: n1 and n2.

Task:

• Initially, a pointer points to n1.
• Pass the address of this pointer (int **pp) to a function.
• Inside the function, decide:
• If the value at pointer is even, reassign it to point to n2.
• If the value is odd, keep pointing to n1.
• Finally, print the value where pointer points.
   

Example-1

Input: n1 = 10, n2 = 50
Output: 50

(10 is even ➔ reassign to n2)

Example-2

Input: n1 = 7, n2 = 100
Output: 7

(7 is odd ➔ keep pointing to n1)

Example-3

Input: n1 = 22, n2 = 88
Output: 88

(22 is even ➔ reassign to n2)