Buggy python submission (verdict: Runtime Error):
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using static System.Console;

class Program
{
    static void Main(string[] args)
    {
        var NM = ReadLine().Split(' ').Select(s => int.Parse(s)).ToArray();
        var (N, M) = (NM[0], NM[1]);
        var A = ReadLine().Split(' ').Select(s => int.Parse(s)).OrderByDescending(x => x).ToArray();

        var priorityQueue = new PriorityQueue<int>();

        foreach (var a in A)
            priorityQueue.Push(a);

        for (int i = 0; i < M; i++)
        {
          int nip = priorityQueue.Pop()/2;
          priorityQueue.Push(nip);
          
        }

        var ans = priorityQueue.Sum(x => (long)x);

        WriteLine(ans);

    }
}
public class PriorityQueue<T> : IEnumerable<T>
    where T : IComparable<T>
{
    private List<T> buffer;
    public int Count { get => buffer.Count; }
    public bool IsDescending { get; }
    private int Compare(T a, T b) => IsDescending ? a.CompareTo(b) : b.CompareTo(a);

    public PriorityQueue(bool isDescending = true)
    {
        buffer = new List<T>();
        IsDescending = isDescending;
    }

    public void Push(T item)
    {
        buffer.Add(item);

        var root = 0;
        var child = buffer.Count - 1;

        while (root < child)
        {
            var parent = (child - 1) / 2;

            if (Compare(buffer[parent], buffer[child]) < 0)
                (buffer[parent], buffer[child]) = (buffer[child], buffer[parent]);

            child = parent;
        }
    }

    public T Pop()
    {
        var item = buffer[0];
        buffer[0] = buffer[^1];
        buffer.RemoveAt(buffer.Count - 1);

        var root = 0;
        var parent = root;
        var child = 1;

        while(child < buffer.Count)
        {
            if (child < buffer.Count - 1)
            {
                var leftChild = child;
                var rightChild = child + 1;

                if (Compare(buffer[leftChild], buffer[rightChild]) < 0)
                    child = rightChild;
            }

            if (Compare(buffer[parent], buffer[child]) < 0)
                (buffer[parent], buffer[child]) = (buffer[child], buffer[parent]);

            parent = child;
            child = 2 * parent + 1;
        }

        return item;
    }

    public IEnumerator<T> GetEnumerator()
    {
        return buffer.GetEnumerator();
    }

    IEnumerator IEnumerable.GetEnumerator()
    {
        return this.GetEnumerator();
    }
}


Fixed submission:
import heapq
N, M = list(map(int,input().split()))
h = []
for i in input().split():
  heapq.heappush(h,-int(i))
for i in range(M):
  x = -heapq.heappop(h)
  x //=2
  heapq.heappush(h,-x)
print(-sum(h))

Buggy python submission (verdict: Time Limit Exceeded):
n,m=map(int,input().split())
a=list(map(int,input().split()))

for i in range(m):
  a.sort()
  t=int(a.pop(-1)/2)
  a.append(t)
print(sum(a))



Fixed submission:
import heapq
N, M = list(map(int,input().split()))
h = []
for i in input().split():
  heapq.heappush(h,-int(i))
for i in range(M):
  x = -heapq.heappop(h)
  x //=2
  heapq.heappush(h,-x)
print(-sum(h))

Buggy python submission (verdict: Runtime Error):
n,m=map(int,input().split())
a=list(map(int,input().split()))
a.sort(reverse=True)
d=[max(a)//2]
a.pop(0)
for i in range(m-1):
  if a[0]>=d[0]:
    d.append(a[0]//2)
    a.pop(0)
  else:
    d.append(d[0]//2)
    d.pop(0)
print(sum(d)+sum(a))
    

Fixed submission:
import heapq
N, M = list(map(int,input().split()))
h = []
for i in input().split():
  heapq.heappush(h,-int(i))
for i in range(M):
  x = -heapq.heappop(h)
  x //=2
  heapq.heappush(h,-x)
print(-sum(h))

Buggy python submission (verdict: Time Limit Exceeded):
import math
n,a=map(int,input().split())
list=list(map(int,input().split()))
list.sort()
x=0
for i in range(a):
   x = max(list)/2
   x=math.floor(x)
   list.pop()
   list.append(x)
   list.sort()
print(sum(list))

Fixed submission:
import heapq
N, M = list(map(int,input().split()))
h = []
for i in input().split():
  heapq.heappush(h,-int(i))
for i in range(M):
  x = -heapq.heappop(h)
  x //=2
  heapq.heappush(h,-x)
print(-sum(h))