Buggy python submission (verdict: Runtime Error):
import bisect
import math

n,m = map(int,input().split())
a = [int(i) for i in input().split()]

a.sort(reverse=True)

ans=[math.ceil(-a[0]/2)]
num = 0
now = 1

if n == 1:
    print(a[0] // 2**m)
    exit()
    
for i in range(m-1):
    #print(ans[0],a[now],now,ans)
    if now >= n:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
    if ans[0] <= -a[now]:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
    else:
        ans.append(math.ceil(-a[now]/2))
        now += 1
#print(ans,ans,ans,ans)
        
if len(ans) == len(a):
    print(-sum(ans))
    exit()
        
print(-sum(ans)+sum(a[len(ans):]))
exit()
for i in range(1,n):
 if num >= m:
   break
 if -a[i]>=ans[-1]: #i番目の要素がansの最小値以下であればansに付け加える
   ans.append(-a[i]//2)
   num+=1
 else:
   pos=bisect.bisect_right(ans,-a[i]) #i番目の要素以下の値で、最も大きい値の位置を求める
   ans[pos]=-a[i] #その位置の値をi番目の要素と置き換える

print(ans)
print(-sum(ans))
exit()

a = [-a]
print(a)
exit()

tmp = a[0] // 2

del a[0]

idx = bisect.bisect_right(a,tmp)
a.insert(idx,tmp)
print(a,idx)
exit()

if a[0] >= a[1]:
    a[0] = a[0] // 2
else:
    a[1] = a[1] // 2
    
print(a)

Fixed submission:
import bisect
import math

n,m = map(int,input().split())
a = [int(i) for i in input().split()]

a.sort(reverse=True)

ans=[math.ceil(-a[0]/2)]
num = 0
now = 1

if n == 1:
    print(a[0] // 2**m)
    exit()
    
for i in range(m-1):
    #print(ans[0],a[now],now,ans)
    if now >= n:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
        continue
    if ans[0] <= -a[now]:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
    else:
        ans.append(math.ceil(-a[now]/2))
        now += 1
#print(ans,ans,ans,ans)
        
if len(ans) == len(a):
    print(-sum(ans))
    exit()
        
print(-sum(ans)+sum(a[len(ans):]))
exit()
for i in range(1,n):
 if num >= m:
   break
 if -a[i]>=ans[-1]: #i番目の要素がansの最小値以下であればansに付け加える
   ans.append(-a[i]//2)
   num+=1
 else:
   pos=bisect.bisect_right(ans,-a[i]) #i番目の要素以下の値で、最も大きい値の位置を求める
   ans[pos]=-a[i] #その位置の値をi番目の要素と置き換える

print(ans)
print(-sum(ans))
exit()

a = [-a]
print(a)
exit()

tmp = a[0] // 2

del a[0]

idx = bisect.bisect_right(a,tmp)
a.insert(idx,tmp)
print(a,idx)
exit()

if a[0] >= a[1]:
    a[0] = a[0] // 2
else:
    a[1] = a[1] // 2
    
print(a)

Buggy python submission (verdict: Runtime Error):
import bisect
import math

n,m = map(int,input().split())
a = [int(i) for i in input().split()]

a.sort(reverse=True)

ans=[math.ceil(-a[0]/2)]
num = 0
now = 1

if n == 1:
    print(a[0] // 2**m)
    exit()
    
for i in range(m-1):
    #print(ans[0],a[now],now,ans)
    if now >= n:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
    if ans[0] <= -a[now]:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
    else:
        ans.append(math.ceil(-a[now]/2))
        now += 1
print(ans,ans,ans,ans)
exit()
        
if len(ans) == len(a):
    print(-sum(ans))
    exit()
        
print(-sum(ans)+sum(a[len(ans):]))
exit()
for i in range(1,n):
 if num >= m:
   break
 if -a[i]>=ans[-1]: #i番目の要素がansの最小値以下であればansに付け加える
   ans.append(-a[i]//2)
   num+=1
 else:
   pos=bisect.bisect_right(ans,-a[i]) #i番目の要素以下の値で、最も大きい値の位置を求める
   ans[pos]=-a[i] #その位置の値をi番目の要素と置き換える

print(ans)
print(-sum(ans))
exit()

a = [-a]
print(a)
exit()

tmp = a[0] // 2

del a[0]

idx = bisect.bisect_right(a,tmp)
a.insert(idx,tmp)
print(a,idx)
exit()

if a[0] >= a[1]:
    a[0] = a[0] // 2
else:
    a[1] = a[1] // 2
    
print(a)

Fixed submission:
import bisect
import math

n,m = map(int,input().split())
a = [int(i) for i in input().split()]

a.sort(reverse=True)

ans=[math.ceil(-a[0]/2)]
num = 0
now = 1

if n == 1:
    print(a[0] // 2**m)
    exit()
    
for i in range(m-1):
    #print(ans[0],a[now],now,ans)
    if now >= n:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
        continue
    if ans[0] <= -a[now]:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
    else:
        ans.append(math.ceil(-a[now]/2))
        now += 1
#print(ans,ans,ans,ans)
        
if len(ans) == len(a):
    print(-sum(ans))
    exit()
        
print(-sum(ans)+sum(a[len(ans):]))
exit()
for i in range(1,n):
 if num >= m:
   break
 if -a[i]>=ans[-1]: #i番目の要素がansの最小値以下であればansに付け加える
   ans.append(-a[i]//2)
   num+=1
 else:
   pos=bisect.bisect_right(ans,-a[i]) #i番目の要素以下の値で、最も大きい値の位置を求める
   ans[pos]=-a[i] #その位置の値をi番目の要素と置き換える

print(ans)
print(-sum(ans))
exit()

a = [-a]
print(a)
exit()

tmp = a[0] // 2

del a[0]

idx = bisect.bisect_right(a,tmp)
a.insert(idx,tmp)
print(a,idx)
exit()

if a[0] >= a[1]:
    a[0] = a[0] // 2
else:
    a[1] = a[1] // 2
    
print(a)

Buggy python submission (verdict: Runtime Error):
import bisect
import math

n,m = map(int,input().split())
a = [int(i) for i in input().split()]

a.sort(reverse=True)

ans=[math.ceil(-a[0]/2)]
num = 0
now = 1

if n == 1:
    print(a[0] // 2**m)
    exit()
    
for i in range(m-1):
    #print(ans[0],a[now],now,ans)
    if now >= n:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
    if ans[0] <= -a[now]:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
    else:
        ans.append(math.ceil(-a[now]/2))
        now += 1
#print(ans,ans,ans,ans)
        
if len(ans) == len(a):
    print(-sum(ans))
    exit()
        
print(-sum(ans)+sum(a[len(ans):]))
exit()
for i in range(1,n):
 if num >= m:
   break
 if -a[i]>=ans[-1]: #i番目の要素がansの最小値以下であればansに付け加える
   ans.append(-a[i]//2)
   num+=1
 else:
   pos=bisect.bisect_right(ans,-a[i]) #i番目の要素以下の値で、最も大きい値の位置を求める
   ans[pos]=-a[i] #その位置の値をi番目の要素と置き換える

print(ans)
print(-sum(ans))
exit()

a = [-a]
print(a)
exit()

tmp = a[0] // 2

del a[0]

idx = bisect.bisect_right(a,tmp)
a.insert(idx,tmp)
print(a,idx)
exit()

if a[0] >= a[1]:
    a[0] = a[0] // 2
else:
    a[1] = a[1] // 2
    
print(a)

Fixed submission:
import bisect
import math

n,m = map(int,input().split())
a = [int(i) for i in input().split()]

a.sort(reverse=True)

ans=[math.ceil(-a[0]/2)]
num = 0
now = 1

if n == 1:
    print(a[0] // 2**m)
    exit()
    
for i in range(m-1):
    #print(ans[0],a[now],now,ans)
    if now >= n:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
        continue
    if ans[0] <= -a[now]:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
    else:
        ans.append(math.ceil(-a[now]/2))
        now += 1
#print(ans,ans,ans,ans)
        
if len(ans) == len(a):
    print(-sum(ans))
    exit()
        
print(-sum(ans)+sum(a[len(ans):]))
exit()
for i in range(1,n):
 if num >= m:
   break
 if -a[i]>=ans[-1]: #i番目の要素がansの最小値以下であればansに付け加える
   ans.append(-a[i]//2)
   num+=1
 else:
   pos=bisect.bisect_right(ans,-a[i]) #i番目の要素以下の値で、最も大きい値の位置を求める
   ans[pos]=-a[i] #その位置の値をi番目の要素と置き換える

print(ans)
print(-sum(ans))
exit()

a = [-a]
print(a)
exit()

tmp = a[0] // 2

del a[0]

idx = bisect.bisect_right(a,tmp)
a.insert(idx,tmp)
print(a,idx)
exit()

if a[0] >= a[1]:
    a[0] = a[0] // 2
else:
    a[1] = a[1] // 2
    
print(a)

Buggy python submission (verdict: Runtime Error):
import bisect
import math

n,m = map(int,input().split())
a = [int(i) for i in input().split()]

a.sort(reverse=True)

ans=[math.ceil(-a[0]/2)]
num = 0
now = 1

if n == 1:
    print(a[0] // 2**m)
    exit()
    
for i in range(m-1):
    #print(ans[0],a[now],now,ans)
    if ans[0] <= -a[now]:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
    else:
        ans.append(math.ceil(-a[now]/2))
        now += 1
#print(ans,ans,ans,ans)
        
if len(ans) == len(a):
    print(-sum(ans))
    exit()
        
print(-sum(ans)+sum(a[len(ans):]))
exit()
for i in range(1,n):
 if num >= m:
   break
 if -a[i]>=ans[-1]: #i番目の要素がansの最小値以下であればansに付け加える
   ans.append(-a[i]//2)
   num+=1
 else:
   pos=bisect.bisect_right(ans,-a[i]) #i番目の要素以下の値で、最も大きい値の位置を求める
   ans[pos]=-a[i] #その位置の値をi番目の要素と置き換える

print(ans)
print(-sum(ans))
exit()

a = [-a]
print(a)
exit()

tmp = a[0] // 2

del a[0]

idx = bisect.bisect_right(a,tmp)
a.insert(idx,tmp)
print(a,idx)
exit()

if a[0] >= a[1]:
    a[0] = a[0] // 2
else:
    a[1] = a[1] // 2
    
print(a)

Fixed submission:
import bisect
import math

n,m = map(int,input().split())
a = [int(i) for i in input().split()]

a.sort(reverse=True)

ans=[math.ceil(-a[0]/2)]
num = 0
now = 1

if n == 1:
    print(a[0] // 2**m)
    exit()
    
for i in range(m-1):
    #print(ans[0],a[now],now,ans)
    if now >= n:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
        continue
    if ans[0] <= -a[now]:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
    else:
        ans.append(math.ceil(-a[now]/2))
        now += 1
#print(ans,ans,ans,ans)
        
if len(ans) == len(a):
    print(-sum(ans))
    exit()
        
print(-sum(ans)+sum(a[len(ans):]))
exit()
for i in range(1,n):
 if num >= m:
   break
 if -a[i]>=ans[-1]: #i番目の要素がansの最小値以下であればansに付け加える
   ans.append(-a[i]//2)
   num+=1
 else:
   pos=bisect.bisect_right(ans,-a[i]) #i番目の要素以下の値で、最も大きい値の位置を求める
   ans[pos]=-a[i] #その位置の値をi番目の要素と置き換える

print(ans)
print(-sum(ans))
exit()

a = [-a]
print(a)
exit()

tmp = a[0] // 2

del a[0]

idx = bisect.bisect_right(a,tmp)
a.insert(idx,tmp)
print(a,idx)
exit()

if a[0] >= a[1]:
    a[0] = a[0] // 2
else:
    a[1] = a[1] // 2
    
print(a)

Buggy python submission (verdict: Runtime Error):
import bisect
import math

n,m = map(int,input().split())
a = [int(i) for i in input().split()]

a.sort(reverse=True)

ans=[math.ceil(-a[0]/2)]
num = 0
now = 1

if n == 1:
    print(a[0] // 2**m)
    exit()

for i in range(m-1):
    #print(ans[0],a[now],now,ans)
    if ans[0] <= -a[now]:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
    else:
        ans.append(math.ceil(-a[now]/2))
        now += 1
#print(ans,ans,ans,ans)
print(-sum(ans)+sum(a[len(ans):]))
exit()
for i in range(1,n):
 if num >= m:
   break
 if -a[i]>=ans[-1]: #i番目の要素がansの最小値以下であればansに付け加える
   ans.append(-a[i]//2)
   num+=1
 else:
   pos=bisect.bisect_right(ans,-a[i]) #i番目の要素以下の値で、最も大きい値の位置を求める
   ans[pos]=-a[i] #その位置の値をi番目の要素と置き換える

print(ans)
print(-sum(ans))
exit()

a = [-a]
print(a)
exit()

tmp = a[0] // 2

del a[0]

idx = bisect.bisect_right(a,tmp)
a.insert(idx,tmp)
print(a,idx)
exit()

if a[0] >= a[1]:
    a[0] = a[0] // 2
else:
    a[1] = a[1] // 2
    
print(a)

Fixed submission:
import bisect
import math

n,m = map(int,input().split())
a = [int(i) for i in input().split()]

a.sort(reverse=True)

ans=[math.ceil(-a[0]/2)]
num = 0
now = 1

if n == 1:
    print(a[0] // 2**m)
    exit()
    
for i in range(m-1):
    #print(ans[0],a[now],now,ans)
    if now >= n:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
        continue
    if ans[0] <= -a[now]:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
    else:
        ans.append(math.ceil(-a[now]/2))
        now += 1
#print(ans,ans,ans,ans)
        
if len(ans) == len(a):
    print(-sum(ans))
    exit()
        
print(-sum(ans)+sum(a[len(ans):]))
exit()
for i in range(1,n):
 if num >= m:
   break
 if -a[i]>=ans[-1]: #i番目の要素がansの最小値以下であればansに付け加える
   ans.append(-a[i]//2)
   num+=1
 else:
   pos=bisect.bisect_right(ans,-a[i]) #i番目の要素以下の値で、最も大きい値の位置を求める
   ans[pos]=-a[i] #その位置の値をi番目の要素と置き換える

print(ans)
print(-sum(ans))
exit()

a = [-a]
print(a)
exit()

tmp = a[0] // 2

del a[0]

idx = bisect.bisect_right(a,tmp)
a.insert(idx,tmp)
print(a,idx)
exit()

if a[0] >= a[1]:
    a[0] = a[0] // 2
else:
    a[1] = a[1] // 2
    
print(a)

Buggy python submission (verdict: Runtime Error):
import bisect
import math

n,m = map(int,input().split())
a = [int(i) for i in input().split()]

a.sort(reverse=True)

ans=[math.ceil(-a[0]/2)]
num = 0
now = 1

if n == 1:
    print(a[0] // 2**m)
    exit()

for i in range(m-1):
    #print(ans[0],a[now],now,ans)
    for j in range(len(ans)):
        if ans[j] <= -a[now]:
            tmp = math.ceil(ans[j] / 2)
            idx = bisect.bisect_right(ans,tmp)
            #print(ans,idx,tmp)
            ans.insert(idx,tmp)
            del ans[j]
            break
        if j == len(ans)-1:
            ans.append(math.ceil(-a[now]/2))
            now += 1
#print(ans,ans,ans,ans)
print(-sum(ans)+sum(a[len(ans):]))
exit()
for i in range(1,n):
 if num >= m:
   break
 if -a[i]>=ans[-1]: #i番目の要素がansの最小値以下であればansに付け加える
   ans.append(-a[i]//2)
   num+=1
 else:
   pos=bisect.bisect_right(ans,-a[i]) #i番目の要素以下の値で、最も大きい値の位置を求める
   ans[pos]=-a[i] #その位置の値をi番目の要素と置き換える

print(ans)
print(-sum(ans))
exit()

a = [-a]
print(a)
exit()

tmp = a[0] // 2

del a[0]

idx = bisect.bisect_right(a,tmp)
a.insert(idx,tmp)
print(a,idx)
exit()

if a[0] >= a[1]:
    a[0] = a[0] // 2
else:
    a[1] = a[1] // 2
    
print(a)

Fixed submission:
import bisect
import math

n,m = map(int,input().split())
a = [int(i) for i in input().split()]

a.sort(reverse=True)

ans=[math.ceil(-a[0]/2)]
num = 0
now = 1

if n == 1:
    print(a[0] // 2**m)
    exit()
    
for i in range(m-1):
    #print(ans[0],a[now],now,ans)
    if now >= n:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
        continue
    if ans[0] <= -a[now]:
        tmp = math.ceil(ans[0] / 2)
        idx = bisect.bisect_right(ans,tmp)
        #print(ans,idx,tmp)
        ans.insert(idx,tmp)
        del ans[0]
    else:
        ans.append(math.ceil(-a[now]/2))
        now += 1
#print(ans,ans,ans,ans)
        
if len(ans) == len(a):
    print(-sum(ans))
    exit()
        
print(-sum(ans)+sum(a[len(ans):]))
exit()
for i in range(1,n):
 if num >= m:
   break
 if -a[i]>=ans[-1]: #i番目の要素がansの最小値以下であればansに付け加える
   ans.append(-a[i]//2)
   num+=1
 else:
   pos=bisect.bisect_right(ans,-a[i]) #i番目の要素以下の値で、最も大きい値の位置を求める
   ans[pos]=-a[i] #その位置の値をi番目の要素と置き換える

print(ans)
print(-sum(ans))
exit()

a = [-a]
print(a)
exit()

tmp = a[0] // 2

del a[0]

idx = bisect.bisect_right(a,tmp)
a.insert(idx,tmp)
print(a,idx)
exit()

if a[0] >= a[1]:
    a[0] = a[0] // 2
else:
    a[1] = a[1] // 2
    
print(a)