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 iter = cb->count;
    int tail_c = cb->tail;
    while(n > 0)
    {
        if(iter > 0)
        {
            // Print 
            printf("%d ", cb->buffer[tail_c]);

            // Update tail_c
            tail_c = (tail_c + 1) % cb->capacity;
        }
        else
        {
            printf("NULL ");
        }
        iter--;
        n--;
    }
}

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