Binary File

Medium File Handling

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Problem Statement

Write a C program to write an integer array to a binary file and read it back.

Input Format

First line: N. Second line: N space-separated integers.

Output Format

Print the retrieved array elements separated by a space.

Constraints

1 <= N <= 100

Sample Input

3
10 20 30

Sample Output

10 20 30

Explanation

Writes raw integer array bytes using fwrite and reads back using fread.

Starter Code

#include <stdio.h>

int main() {
    int n;
    if (scanf("%d", &n) == 1) {
        int arr[n];
        for (int i = 0; i < n; i++) scanf("%d", &arr[i]);
        // Write your code here
    }
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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