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) {
    // Your code here
    for (int i=0; i<n;i++){
        if (i>=(*cb).count) printf("NULL");
        else{
           static int index = (*cb).tail;
        printf("%d",(*cb).buffer[index++]);
        index %= (*cb).capacity;
        }
        (i != n-1) ? printf(" "):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