Peek N Bytes from Circular Buffer

#include <stdio.h>

typedef struct {
    int buffer[10];
    int head;
    int tail;
    int count;
    int capacity;
} CircularBuffer;

// Write your logic inside this function
void peek_bytes(CircularBuffer *cb, int n) {
    // Your code here
    for(int i = 0; i < n; i++) 
    {
        if(i > 0) printf(" ");
        
        if(i < cb->count) // Check, is data at position i
        {  
            int peek_index = (cb->tail + i) % cb->capacity;  // Calculate peek position
            printf("%d", cb->buffer[peek_index]);
        }
        else 
        {
            printf("NULL");     //If n is greater than the number of available bytes (count), print "NULL" for each extra byte.
        }
    }
}

int main() {
    CircularBuffer cb = {
        .buffer = {10, 20, 30, 40, 50, 60, 70, 80, 90, 100},
        .head = 3,
        .tail = 7,
        .count = 6,
        .capacity = 10
    };

    int n;
    scanf("%d", &n);

    peek_bytes(&cb, n);

    return 0;
}