Print Variable Address

Easy Pointer Fundamentals

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Problem Statement

Write a C program to declare an integer variable, assign a value, and print its memory address using the address-of operator (&).

Input Format

An integer value.

Output Format

Print a message confirming the address exists (or print 'VALID ADDRESS' since raw memory addresses vary across runs).

Constraints

Standard integer limits

Sample Input

Sample Output

VALID ADDRESS

Explanation

Use the '&' operator to retrieve the memory address of a variable and verify it is non-null.

Starter Code

#include <stdio.h>

int main() {
    int num;
    if (scanf("%d", &num) == 1) {
        int *ptr = &num;
        // Write your code here to check if pointer address is valid
    }
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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