Free Allocated Memory

Easy Dynamic Memory Allocation

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Problem Statement

Write a C program that allocates memory dynamically, validates it, performs operations, frees the memory, and safely sets the pointer to NULL.

Input Format

An integer value.

Output Format

Print 'SAFE MEMORY CLEANED' upon successful deallocation.

Constraints

Standard integer limits

Sample Input

Sample Output

SAFE MEMORY CLEANED

Explanation

Demonstrates safe memory management practices by checking pointer validity, freeing heap allocation, and resetting pointer reference.

Starter Code

#include <stdio.h>
#include <stdlib.h>

int main() {
    int val;
    if (scanf("%d", &val) == 1) {
        int *ptr = (int *)malloc(sizeof(int));
        // Write your code here to safely free memory and print confirmation
    }
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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