86. Circular Buffer Read

#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 temp=n;temp>0;temp--){
        if(cb->count==0){printf("NULL");if(temp>1)printf(" ");}
        else{
            printf("%d",cb->buffer[cb->tail]);
            if(temp>1)printf(" ");
            cb->count--;
            cb->tail=(cb->tail+1)%cb->capacity;
        }
    }
    printf("\n");
    printf("Tail: %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;
}