Circular Buffer Read

Code

#include <stdio.h>

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

void read_bytes(CircularBuffer *cb, int n) {
    // Your logic here
    for (int i = 0; i < n; i++){
        if(cb-> count == 0){
            printf("NULL");
        } else {
            int val = cb->buffer[cb-> tail];
            printf("%d", val);
            cb-> tail = (cb->tail+1)%cb->capacity;
            cb-> count--;
        }
    
    if (i<(n-1)){
        printf(" ");
    }}
    printf("\nTail: %d", cb-> tail);

}

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);
    read_bytes(&cb, n);

    return 0;
}

Solving Approach