Peek N Bytes from Circular Buffer

Create a local copy and modify.

#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 Tcount = cb->count, Ttail = cb->tail;
    int val;
    while(n){
        if(0 == Tcount){
            printf("NULL");
        }
        else{
            Ttail %= cb->capacity;
            val = cb->buffer[Ttail++];
            Tcount--;
            printf("%d", val);
        }
        if(n>1)     putchar(' ');
        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

similar to previous problem just create a local copy of count and tail. Modify these only.