87. Peek N Bytes from Circular Buffer

#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
    int tmpcount = cb->count;
    for(int i; i < n; i++){
        if(tmpcount <= 0){
            printf("NULL");
        }
        else{
            int val = cb->buffer[(cb->tail + i) % cb->capacity];
            printf("%d", val);
            tmpcount--;
            }
        if(i <= 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;
}