We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  1. Jesse and Cookies
  2. Discussions

Jesse and Cookies

Sort by

recency

|

12 Discussions

|

  • trunglaitruly
     + 0 comments

    Python, using stack for premade cookies, queue for new cookies

    def getsmallest(stack, queue):
    if len(stack) == 0:
        return queue.popleft()
    elif len(queue) == 0:
        return stack.pop()
    return queue.popleft() if queue[0] < stack[-1] else stack.pop()
    
def cookies(k, startstack):
    startstack.sort(reverse=True)
    createdqueue = deque()
    numops = 0
    while True:
        if (len(startstack) == 0 or startstack[-1] >= k) and (len(createdqueue) == 0 or createdqueue[0] >= k):
            return numops
        if (len(startstack) + len(createdqueue) < 2):
            return -1
            
        numops += 1
        s1 = getsmallest(startstack, createdqueue)
        s2 = getsmallest(startstack, createdqueue)
        createdqueue.append(s1 + 2 * s2)

  • vadym_usatiuk
     + 0 comments

    Java O(n log n)

    public static int cookies(int k, List<Integer> A) {
        PriorityQueue<Integer> pq = new PriorityQueue<>(A);
        int operations = 0;

        while (pq.size() > 1 && pq.peek() < k) {
            int first = pq.poll();
            int second = pq.poll();
            int combinedSweetness = first + (2 * second);
            pq.offer(combinedSweetness);
            operations++;
        }

        return pq.peek() >= k ? operations : -1;
    }

  • sagarbhatt_ons11
     + 0 comments

    Java 15 solution using PriorityQueue: 

    public static int cookies(int k, List<Integer> cookies){
    PriorityQueue<Integer> pq = new PriorityQueue<Integer>(cookies);
    if(isAllCookiesSweeterThanK(k,pq))return 0;

    int counter = 0;
    while(!isAllCookiesSweeterThanK(k, pq)){
        if(pq.size()==1)return -1;
        pq.add(pq.poll() + pq.poll()*2);
        counter++;
    }

    return counter;
}

private static boolean isAllCookiesSweeterThanK(int k, PriorityQueue<Integer> pq){
    Optional<Integer> ans = pq.stream().filter(i -> i < k).findFirst();
    if(ans.isEmpty())return true;
    return false;
}

  • n_gucenkov
     + 0 comments
    import heapq
def cookies(k, A):
    operations = 0
    heapq.heapify(A) 

    while A[0] < k and len(A) > 1:
        heapq.heappush(A, heapq.heappop(A) + 2 * heapq.heappop(A))
        operations += 1

    return operations if A[0] >= k else -1

  • vsorokin2
     + 0 comments

    C# code

    public static int cookies(int k, List<int> A)
    {
        
        if (A.Count < 1) 
            return -1;
            
        int count = 0;
        PriorityQueue<int, int> q = new PriorityQueue<int, int>();
        
        for(int i =0; i < A.Count; i++)
        {
            q.Enqueue(A[i], A[i]);
        }
        
        while(q.Count > 1 && q.Peek() < k)
        {
            int min = q.Peek();
            int val = q.Dequeue()  + 2 * q.Dequeue() ;
            if (val < min) 
              return -1;
            count++;
            q.Enqueue(val,val);
            
        }
        
        if (q.Peek() >= k) 
            return count;
        else 
            return -1;
        

    }