Peek N Bytes from Circular Buffer

Code

#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) {
    int counter = cb -> tail;
    int count = cb -> count;
    while(n--){
        if(count == 0){
            printf("%s","NULL");
        }
        else{
            count-- ;
            printf("%d",cb -> buffer [counter++]);
        }
        if(counter == cb -> capacity){
            counter = 0;
        }
        if(n >= 1){
            printf(" ");

        }
    }
    
}

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;
}

Solving Approach