Circular Buffer Insert

Code

#include <stdio.h>
typedef struct {
    int buffer[100];
    int head;
    int tail;
    int count;
    int capacity;
} CircularBuffer;
void insert_circular(CircularBuffer *cb, int value) {
    if (cb->count < cb->capacity) {
        cb->buffer[cb->head++] = value;
        cb->count++;
    }
}
int main() {
    int n, k;
    scanf("%d %d", &n, &k);
    CircularBuffer cb = { .head = 0, .tail = 0, .count = 0, .capacity = n };
    for (int i = 0; i < k; i++) {
        int val;
        scanf("%d", &val);
        insert_circular(&cb, val);
    }
    for (int i = 0; i < cb.count; i++) {
        printf("%d", cb.buffer[i]);
        if(i < cb.count-1){
           printf(" "); 
        }
    }
    return 0;
}

Solving Approach