Harryxun/GPT-100-sft-dataset huggingface dataset:
Problem p04030 (python)

Fixed submission:
s = input()
a = []

for i in range(len(s)):
    if (s[i] == "B"):
        if(len(a) <= 0):
            continue
        else:
            a.pop()
    else:
        a.append(s[i])
print(''.join(a))

Buggy submission (verdict: Runtime Error):
s = input()
a = []

for i in range(len(s)):
    if (s[i] == "B"):
        if(len(a) == 0):
            continue
        else:
            a.remove(a[i-1])
    else:
        a.append(s[i])
print(''.join(a))
Problem p02574 (python)

Fixed submission:
N = int(input())
A = list(map(int,input().split()))

A = sorted(A,reverse = True)
prime = [0] * (10**6+1)
eratos = [True] * (A[0] + 1)
D = [0] * (A[0]+1)
D[1] = 1
for i in range(2,A[0] + 1):
  if not eratos[i]:
    continue
  else:
    for j in range(i,A[0] + 1,i):
      if not D[j]:
        D[j] = i
      if j!=i:
      	eratos[j] = False
  
for a in A:
  while a!=1:
    x = D[a]
    while a%x==0:
      a//=x
    prime[x] += 1

if max(prime)<=1:
  print('pairwise coprime')
  
elif max(prime)!=N:
  print('setwise coprime')
else:
  print('not coprime')

Buggy submission (verdict: Runtime Error):
N = int(input())
A = list(map(int,input().split()))
from fractions import gcd

setwise = A[0]

A = sorted(A,reverse = True)
prime = [0] * (10**6+1)
judge = True

for a in A:
  setwise = gcd(setwise,a)
  if prime[a]:
    continue
  else:
    prime[a] += 1
    if a%2==0:
      if prime[2]:
        judge = False
      prime[2] += 1
      a//=2
      if (a!=2)and(prime[a]):
        judge = False
      prime[a] += 1
    
    for i in range(3,int((a)**(1/2))+1,2):
      if a%i==0:
        if prime[i]:
          judge = False
        prime[i] += 1
        
if judge:
  print(ans)
  
elif setwise==1:
  print('setwise coprime')
else:
  print('not coprime')
Problem p02607 (python)

Fixed submission:
N = int(input())
A = list(map(int,input().split()))
ans = 0
for i in range(0,N,2):
  if A[i]%2==1:
    ans+=1
    
print(ans)

Buggy submission (verdict: Runtime Error):
N = int(input())
A = map(int,input().split())
ans = 0
for i in range(0,N,2):
  if A[i]%2==1:
    ans+=1
    
print(ans)
Problem p02609 (python)

Fixed submission:
N = int(input())
X = input()

l = [0] * (2*10**5+1)
ans = [0] * (2*10**5+1)
for i in range(2*10**5+1):
  l[i] = bin(i).count('1')
  
for i in range(2*10**5+1):
  x = i
  y = 0
  while x!=0:
    y += 1
    x %= l[x]
    
  ans[i] = y
  
X_count = X.count('1')
plu = X_count + 1
mi = X_count - 1
plu_res = 0
mi_res = 0
X_int = int(X,2)

for i in range(N):
  if X[i]=='0':
    continue
  else:
    plu_res += pow(2,N-i-1,plu)
    plu_res %= plu
    if mi>0:
      mi_res += pow(2,N-i-1,mi)
      mi_res %= mi
      
for i in range(N):
  if X[i]=='0':
    x = (plu_res + pow(2,N-i-1,plu)) % plu
    print(1 + ans[x])
  else:
    if mi!=0:
      x = (mi_res - pow(2,N-i-1,mi)) % mi
      print(1 + ans[x])
    else:
      print(0)

Buggy submission (verdict: Runtime Error):
def main():
  from collections import deque
  import sys
  input = sys.stdin.readline
  T = int(input())
  for _ in range(T):
    N = int(input())
    KLR = [list(map(int,input().split())) for _ in range(N)]
    left = deque([])
    right = deque([])
    mid = deque([])
    for K,L,R in KLR:
      x = L - R
      if x==0:
        mid.append([K-1,L,R,x])
      elif x>0:
        left.append([K-1,L,R,x])
      else:
        right.append([K-1,L,R,x])

    left = sorted(left,key = lambda x:x[3],reverse = True)
    right = sorted(right, key = lambda x:x[3])
    flag = [False] * (N)
    ans = 0
    for klr in left:
      x = klr[0]
      for _ in range(N):
        if x<0:
          ans += klr[2]
          break
        if flag[x]:
          x -= 1
        else:
          flag[x] = True
          ans += klr[1]
          break
    flag = [False] * (N)
    for klr in right:
      x = klr[0] + 1
      for _ in range(N):
        if x>=N:
          ans += klr[1]
          break
        if flag[x]:
          x += 1
        else:
          flag[x] = True
          ans += klr[2]
          break
    for klr in mid:
      ans += klr[1]

    print(ans)
    
main()

Buggy submission (verdict: Runtime Error):
N = int(input())
X = input()

l = [0] * (2*10**5+1)
ans = [0] * (2*10**5+1)
for i in range(2*10**5+1):
  l[i] = bin(i).count('1')
  
for i in range(2*10**5+1):
  x = i
  y = 0
  while x!=0:
    y += 1
    x %= l[x]
    
  ans[i] = y
  
X_count = X.count('1')
plu = X_count + 1
mi = X_count - 1
plu_res = 0
mi_res = 0
X_int = int(X,2)

for i in range(N):
  if X[i]=='0':
    continue
  else:
    plu_res += pow(2,N-i-1,plu)
    plu_res %= plu
    if mi>=0:
      mi_res += pow(2,N-i-1,mi)
      mi_res %= mi
      
for i in range(N):
  if X[i]=='0':
    x = (plu_res + pow(2,N-i-1,plu)) % plu
    print(1 + ans[x])
  else:
    x = (mi_res - pow(2,N-i-1,mi)) % mi
    print(1 + ans[x])
Problem p02632 (python)

Fixed submission:
K = int(input())
S = input()
MOD = 10**9 + 7

length = len(S)
length_all = K + length
ans = 0
list_25 = [1] * (10**6 + 5)
list_26 = [1] * (10**6 + 5)
for i in range(1,10**6 + 5):
  list_25[i] = list_25[i - 1] * 25 % MOD
  list_26[i] = list_26[i - 1] * 26 % MOD
  
fact = [1] * (2 * 10**6 + 5)
fact_inv = [1] * (2 * 10**6 + 5)
for i in range(1, 2 * 10**6 + 5):
  fact[i] = fact[i-1] * i % MOD
  fact_inv[i] = fact_inv[i - 1] * pow(i, MOD - 2, MOD) % MOD

for i in range(K + 1):
  ans += list_26[i] * list_25[K - i] % MOD * fact[length_all - i - 1] * fact_inv[length - 1] * fact_inv[K - i] % MOD

print(ans % MOD)

Buggy submission (verdict: Runtime Error):
K = int(input())
S = input()
MOD = 10**9 + 7

length = len(S)
length_all = K + length
ans = 0
list_25 = [1] * (10**6 + 5)
list_26 = [1] * (10**6 + 5)
for i in range(1,10**6 + 5):
  list_25[i] = list_25[i - 1] * 25 % MOD
  list_26[i] = list_26[i - 1] * 26 % MOD
  
fact = [1] * (10**6 + 5)
fact_inv = [1] * (10**6 + 5)
inv = [1] * (10**6 + 5)
for i in range(1, 10**6 + 5):
  fact[i] = fact[i-1] * i % MOD
  fact_inv[i] = fact_inv[i - 1] * pow(i, MOD - 2, MOD) % MOD
for i in range(K + 1):
  ans += list_26[i] * list_25[K - i] % MOD * fact[length_all - i - 1] * fact_inv[length - 1] * fact_inv[K - i] % MOD

print(ans % MOD)
Problem p02647 (python)

Fixed submission:
N,K = map(int,input().split())
A = list(map(int,input().split()))

for i in range(1,K+1):
  B = [0]*N
  for j in range(N):
    l = max(0, j-A[j])
    r = min(N-1, j+A[j])
    B[l] += 1
    if r+1<N:
      B[r+1] -= 1
    
  if B[0]==N:
    x = 1
  else:
    x = 0
  for i in range(1,N):
    B[i] += B[i-1]
    if B[i]==N:
      x += 1
  A = B.copy()
  if (x==N)or(i==K):
    break
    
print(' '.join(list(map(str,A))))

Buggy submission (verdict: Runtime Error):
def main():  
  N = int(input())
  VW = [list(map(int,input().split())) for _ in range(N)]
  Q = int(input())
  vL = [list(map(int,input().split())) for _ in range(Q)]
  M = 0
  import math
  from collections import deque
  for q in range(Q):
    x = vL[q][1]
    if x>M:
      M = x

  D = int(math.log2(N)) + 1
  K = D//2
  Ddp = deque([[0] * (M+1) for _ in range(2**K)])

  for q in range(Q):
    v,L = vL[q]
    if v<=2**K - 1:
      print(Ddp[v][L])
      continue
    
main()
Problem p02657 (python)

Fixed submission:
A,B = map(int,input().split())
print(A*B)

Buggy submission (verdict: Runtime Error):
N = int(input())
A = list(map(int,input().split()))

if 0 in A:
  print(0)
  
else:
  ans = 1
  for a in A:
    ans *= 1
    if ans>10**18:
      ans = -1
      break
  print(ans)
Problem p02684 (python)

Fixed submission:
N,K = map(int,input().split())
A = list(map(int,input().split()))
A = [i-1 for i in A]

flag = [False]*N
from collections import deque

q = deque([])
q.append(0)
flag[0] = True
now = 0
while True:
  now = A[now]
  if flag[now]:
    break
  else:
    flag[now] = True
    q.append(now)
    
l = list(q)
if K<len(l):
  print(l[K]+1)

else:
  for i,x in enumerate(l):
    if x==now:
      l = l[i:]
      K -= i
      break
  
  print(l[K%len(l)]+1)

Buggy submission (verdict: Runtime Error):
N,K = map(int,input().split())
A = list(map(int,input().split()))
A = [i-1 for i in A]

flag = [False]*N
from collections import deque

q = deque([])
q.append(0)
flag[0] = True
now = 0
while True:
  now = A[now]
  if flag[now]:
    break
  else:
    flag[now] = True
    q.append(now)
    
l = list(q)
if K<=len(l):
  print(l[K]+1)

else:
  for i,x in enumerate(l):
    if x==now:
      l = l[i:]
      K -= i
      break
  
  print(l[K%len(l)]+1)
Problem p02686 (python)

Fixed submission:
N = int(input())
from collections import deque
L = deque([])
R = deque([])

for i in range(N):
  S = input()
  l = [0]*len(S)
  if S[0]=='(':
    l[0]=1
  else:
    l[0]=-1
  for j in range(1,len(S)):
    if S[j]=='(':
      l[j] = l[j-1] + 1
    else:
      l[j] = l[j-1] - 1
  if l[-1] < 0:
    R.append([min(l)-l[-1], -l[-1], min(l), l[-1]])
  else:
    L.append([min(0,min(l)),l[-1]])
    
R = sorted(R, key = lambda x:x[0])
L = sorted(L, key = lambda x:x[0], reverse = True)
now = 0
judge = True
    
for l in L:
  if now + l[0]<0:
    judge = False
    break
  else:
    now += l[1]
    
for r in R:
  if now+r[2]<0:
    judge = False
    break
  else:
    now += r[3]
    
if now!=0:
  judge = False
  
if judge:
  print('Yes')
else:
  print('No')

Buggy submission (verdict: Runtime Error):
N = int(input())
from collections import deque
L = deque([])
R = deque([])

for i in range(N):
  S = input()
  l = [0]*len(S)
  if S[0]=='(':
    l[0]=1
  else:
    l[0]=-1
  for j in range(1,len(S)):
    if S[j]=='(':
      l[j] = l[j-1] + 1
    else:
      l[j] = l[j-1] - 1
      
  if l[-1] < 0:
    R.append([min(l)-l[-1],-l[-1]])
  else:
    L.append([min(l),l[-1]])
    
R = sorted(R, key = lambda x:x[0], reverse = True)
L = sorted(L, key = lambda x:x[0])

now = 0
judge = True
for r in R:
  if now+r[0]<0:
    judge = False
    break
  else:
    now += r[1]
    
for l in L:
  if now + l[0]<0:
    judge = False
    break
  else:
    now += r[1]
    
if now!=0:
  judge = False
  
if judge:
  print('Yes')
else:
  print('No')

Buggy submission (verdict: Runtime Error):
N = int(input())
from collections import deque
L = deque([])
R = deque([])

for i in range(N):
  S = input()
  l = [0]*len(S)
  if S[0]=='(':
    l[0]=1
  else:
    l[0]=-1
  for j in range(1,len(S)):
    if S[j]=='(':
      l[j] = l[j-1] + 1
    else:
      l[j] = l[j-1] - 1
      
  if l[-1] < 0:
    R.append([min(l)-l[-1],-l[-1]])
  else:
    L.append([min(l),l[-1]])
    
R = sorted(R, key = lambda x:x[0], reverse = True)
L = sorted(L, key = lambda x:x[0])

now = 0
judge = True
for r in R:
  if now+r[0]<0:
    judge = False
    break
  else:
    now += r[1]
    
for l in L:
  if now + l[0]<0:
    judge = False
    break
  else:
    now += r[1]
    
if now!=0:
  judge = False
  
if judge:
  print('Yes')
else:
  print('No')
Problem p02690 (python)

Fixed submission:
X = int(input())
for A in range(-1000,1001):
  for B in range(-1000,1001):
    if A**5-B**5==X:
      print(A,B)
      exit()

Buggy submission (verdict: Runtime Error):
X = int(input())
y = 1
z = X
for i in range(2,int((X**(1/2)))+1):
  if X%i==0:
    y = i
    z = x//i
    break
    
for a in range(10**5):
  b = a-y
  if a**4 + (a**3)*b + (a**2)*(b**2) + a*(b**3) + b**4==z:
    print(a,b)
    exit()
Problem p02691 (python)

Fixed submission:
N = int(input())
A = list(map(int,input().split()))
ans = 0
dic = {}
for i in range(1,N):
  x = i-A[i]
  if x<0:
    continue
  else:
    if x in dic:
      dic[x]+=1
    else:
      dic[x]=1
if A[0] in dic:
  ans+=dic[A[0]]
for i in range(1,N):
  x = i+A[i]
  
  if i-A[i] in dic:
    dic[i-A[i]]-=1
    
  if x in dic:
    ans+=dic[x]
  
print(ans)

Buggy submission (verdict: Runtime Error):
N = int(input())
A = list(map(int,input().split()))
ans = 0
l = [0]*(2*10**5+10)
for i in range(1,len(A)):
  x = i-A[i]
  if x<0:
    continue
  else:
    l[x]+=1

ans+=l[A[0]]
for i in range(1,N):
  x = i+A[i]
  if x<0:
    continue
  if x>2*10**5:
    continue
  
  l[i-A[i]]-=1
  ans+=l[x]
  
print(ans)
Problem p02697 (python)

Fixed submission:
N,M = map(int,input().split())
start = 1
end = M
while True:
  if start>=end:
    break
  print(start,end)
  start+=1
  end-=1
  
start = M+1
end = 2*M+1
while True:
  if start>=end:
    break
  print(start,end)
  start = start+1
  end = end-1

Buggy submission (verdict: Runtime Error):
N,M = map(int,input().split())
flag = [False]*(10**6)
plu_flag = [False]*(10**6)
plu = 1
for i in range(1,N+1):
  if M==0:
    break
  if (flag[i])or(flag[i+plu]):
    continue
  if (plu_flag[plu])or(plu_flag[N-plu]):
    plu+=1
    continue
    
  if i+plu>N:
    print(d)
  plu_flag[plu]=True
  plu_flag[N-plu]=True
  flag[i]=True
  flag[i+plu]=True
  print(i,i+plu)
  plu+=1
  M-=1

Buggy submission (verdict: Runtime Error):
N,M = map(int,input().split())
flag = [False]*(10**6)
plu_flag = [False]*(10**6)
plu = 1
for i in range(1,N+1):
  if M==0:
    break
  if (flag[i])or(flag[i+plu]):
    continue
  if (plu_flag[plu])or(plu_flag[N-plu]):
    plu+=1
    continue
    
  if plu>N//2:
    print(d)
  if i+plu>N:
    print(d)
  plu_flag[plu]=True
  plu_flag[N-plu]=True
  flag[i]=True
  flag[i+plu]=True
  print(i,i+plu)
  plu+=1
  M-=1

Buggy submission (verdict: Runtime Error):
N,M = map(int,input().split())
flag = [False]*(10**5+10)
plu = 1
for i in range(1,N+1):
  if M==0:
    break
  if flag[i] or flag[i+plu]:
    continue
  else:
    flag[i]=True
    flag[i+plu]=True
    print(i,i+plu)
    plu+=1
    M-=1
Problem p02716 (python)

Fixed submission:
N = int(input())
A = list(map(int,input().split()))
dp = [{} for _ in range(N+1)]
INF = -float('inf')
for i in range(1,N+1):
    mid = i//2
    dp[i][mid-2],dp[i][mid-1],dp[i][mid],dp[i][mid+1],dp[i][mid+2]=INF,INF,INF,INF,INF
dp[1][1] = A[0]
dp[2][1] = max(A[1],dp[1][1])
dp[1][0],dp[2][0]=0,0

for i in range(2,N):
  a = A[i]
  ma = (i+2)//2
  mi = i//2
  dp[i+1][ma] = max(dp[i][ma],dp[i-1][ma-1]+a)
  dp[i+1][mi] = max(dp[i][mi],dp[i-1][mi-1]+a)

print(dp[-1][N//2])

Buggy submission (verdict: Runtime Error):
N = int(input())
A = list(map(int,input().split()))
dp = [[0]*3 for _ in range(N+1)]

dp[1][3] = A[0]
dp[2][2] = max(A[1],dp[1][3])

for i in range(2,N):
  a = A[i]
  mid = (i+1)//2
  ma = (i+2)//2
  mi = i//2
  dp[i+1][2+ma-mid] = max(dp[i][2+ma-i//2],dp[i-1][1+ma-(i-1)//2]+a)
  dp[i+1][2+mi-mid] = max(dp[i][2+mi-i//2],dp[i-1][1+mi-(i-1)//2]+a)

print(dp[-1][2])
Problem p02732 (python)

Fixed submission:
N = int(input())
A = list(map(int,input().split()))
A_set = list(set(A))
l = [0]*(N+2)
ans = [0]*(N+2)
for a in A:
  l[a]+=1
comb = [0]*(N+2)
for i in range(2,N+1):
  comb[i] = i*(i-1)//2
  
for i in range(2,N+1):
  ans[i]=comb[i]-comb[i-1]
  
total = 0
for a in A_set:
  total += comb[l[a]]

for a in A:
  print(int(total-ans[l[a]]))

Buggy submission (verdict: Runtime Error):
def main():
  H,W,K = map(int,input().split())
  import numpy as np
  from collections import deque
  ans = 10000
  S = np.array([list(map(int,list(input()))) for _ in range(H)])
  cum = [[0]*W for _ in range(H+1)]
  for j in range(W):
    for i in range(1,H+1):
      cum[i][j] = cum[i-1][j]+S[i-1][j]

  cum = np.array(cum)
  for i in range(2**(H-1)):
    q = deque([0])
    for h in range(H):
      if (i>>h)&1:
        q.append(h+1)
    q.append(H)
    p = deque()
    judge = False
    for a in range(len(q)-1):
      x = cum[q[a+1]]-cum[q[a]]
      if (x>K).any():
        judge = True
        break
      else:
        p.append(x)

    if judge:
      continue

    t_a = len(q)-2
    l = [0]*len(p)
    for w in range(W):
      for x,a in enumerate(p):
        l[x]+=a[w]
        if l[x]>K:
          t_a+=1
          l = [0]*len(p)
          for z,b in enumerate(p):
            l[z] = b[w]
          break
    ans = min(ans,t_a)

  print(ans)
  
main()
Problem p02783 (python)

Fixed submission:
H,A = map(int,input().split())
if H%A==0:
  print(H//A)
else:
  print((H//A)+1)

Buggy submission (verdict: Runtime Error):
def main():
  H,N = map(int,input().split())
  AB = [list(map(int,input().split())) for _ in range(N)]
  ab = min(AB,key = lambda x:x[1])
  INF = float('inf')
  dp = [INF]*(H+1)
  mi_a = ab[0]
  mi_b = ab[1]
  dp[0] = 0
  for i in range(1,H+1):
    if i<=mi_a:
      dp[i]=mi_b
    else:
      mi = float('inf')
      for a,b in AB:
        mi = min(mi,dp[max(0,i-a)]+b)
      if dp[i]>mi:
        dp[i] = mi

  print(dp[H])
  
main()
Problem p02787 (python)

Fixed submission:
H,N = map(int,input().split())
AB = [list(map(int,input().split())) for _ in range(N)]
INF = float('inf')
dp = [INF]*(H+1)
dp[0] = 0
for i in range(1,H+1):
  for k in AB:
    a = k[0]
    b = k[1]
    tmp = max(0,i-a)
    dp[i] = min(dp[i],dp[tmp]+b)
    
print(dp[H])

Buggy submission (verdict: Runtime Error):
def cal(k):
  for a,b in AB:
    tmp = k-a
    if tmp<0:
      tmp = 0
    new = dp[tmp]+b
    if new<dp[k]:
      dp[k]=new
def main():
  H,N = map(int,input().split())
  AB = [list(map(int,input().split())) for _ in range(N)]
  mi_a,mi_b = min(AB,key = lambda x:x[1])
  INF = float('inf')
  dp = [0]+[mi_b]*mi_a+[INF]*H
  for i in range(mi_a+1,H+1):
    cal(i)

  print(dp[H])
  

main()

Buggy submission (verdict: Runtime Error):
def cal(k):
  for a,b in AB:
    tmp = k-a
    if tmp<0:
      tmp = 0
    new = dp[tmp]+b
    if new<dp[k]:
      dp[k]=new
def main():
  H,N = map(int,input().split())
  AB = [list(map(int,input().split())) for _ in range(N)]
  mi_a,mi_b = min(AB,key = lambda x:x[1])
  INF = float('inf')
  dp = [0]+[mi_b]*mi_a+[INF]*H
  for i in range(mi_a+1,H+1):
    cal(i)

  print(dp[H])
main()

Buggy submission (verdict: Runtime Error):
def cal(k):
  for a,b in AB:
    tmp = k-a
    if tmp<0:
      tmp = 0
    new = dp[tmp]+b
    if new<dp[k]:
      dp[k]=new
def main():
  H,N = map(int,input().split())
  AB = [list(map(int,input().split())) for _ in range(N)]
  mi_a,mi_b = min(AB,key = lambda x:x[1])
  INF = float('inf')
  dp = [0]+[mi_b]*mi_a+[INF]*H
  for i in range(mi_a+1,H+1):
    cal(i)

  print(dp[H])
main()
Problem p02788 (python)

Fixed submission:
def main():
  N,D,A = map(int,input().split())
  XH = [list(map(int,input().split())) for _ in range(N)]
  XH = sorted(XH)
  ans = 0
  S = [0]*(N+1)
  x = XH[0][0]
  h = XH[0][1]
  j = 0
  b = (h+A-1)//A
  ans += b
  y = b*A
  while True:
    if j+1>=N:
      break
    if XH[j+1][0]<=x+2*D:
      j+=1
    else:
      break
  S[0]+=y
  S[j+1]-=y
  S[1]+=S[0]
  for i in range(1,N):
    xh = XH[i]
    h = xh[1]
    s = S[i]
    rec = h-s
    if rec<=0:
      S[i+1]+=s
      continue
    else:
      x = xh[0]
      j = max(j,i)
      while True:
        if j+1>=N:
          break
        if XH[j+1][0]<=x+2*D:
          j+=1
        else:
          break
      b = (rec+A-1)//A
      ans += b
      y = b*A
      S[i]+=y
      S[j+1]-=y
      S[i+1]+=s+y
  print(ans)
main()

Buggy submission (verdict: Runtime Error):
N,D,A = map(int,input().split())
import numpy as np
import math
XH = [list(map(int,input().split())) for _ in range(N)]
XH = sorted(XH)
ans = 0
ma = XH[-1][0]
l = np.array([0]*(ma+5))
for xh in XH:
  l[xh[0]]=xh[1]
  

for xh in XH:
  x = xh[0]
  if x+2*D<=ma:
    a = l[x]
    if a<=0:
      continue
    else:
      b = math.ceil(a/A)
      ans += b
      l[x:x+2*D+1:]-=b*A
  else:
    a = l[x]
    if a<=0:
      continue
    else:
      b=math.ceil(a/A)
      ans += b
      l[x::]-=b*A
      
print(ans)

Buggy submission (verdict: Runtime Error):
N,D,A = map(int,input().split())
import numpy as np
import math
XH = [list(map(int,input().split())) for _ in range(N)]
XH = sorted(XH)
ans = 0
ma = XH[-1][0]
l = np.array([0]*(ma+5))
for xh in XH:
  l[xh[0]]=xh[1]
  

for xh in XH:
  x = xh[0]
  if x+2*D<=ma:
    a = l[x]
    if a<=0:
      continue
    else:
      b = math.ceil(a/A)
      ans += b
      l[x:x+2*D+1:]-=b*a
  else:
    a = l[x]
    if a<=0:
      continue
    else:
      b=math.ceil(a/A)
      ans += b
      l[x::]-=b*a
      
print(ans)

Buggy submission (verdict: Runtime Error):
N,D,A = map(int,input().split())
import numpy as np
import math
XH = [list(map(int,input().split())) for _ in range(N)]
XH = sorted(XH)
ans = 0
ma = XH[-1][0]
l = np.array([0]*(ma+5))
for xh in XH:
  l[xh[0]]=xh[1]
  

for xh in XH:
  x = xh[0]
  if x+D<=ma:
    a = l[x]
    if a<=0:
      continue
    else:
      b = math.ceil(a/A)
      ans += b
      l[x:x+2*D+1:]-=b*a
  else:
    a = l[x]
    if a<=0:
      continue
    else:
      b=math.ceil(a/A)
      ans += b
      l[x::]-=b*a
      
print(ans)
Problem p02795 (python)

Fixed submission:
H = int(input())
W = int(input())
N = int(input())
import math
x = max(H,W)
print(math.ceil(N/x))

Buggy submission (verdict: Runtime Error):
N = int(input())
A = list(map(int,input().split()))
B = list(map(int,input().split()))
INF = N**3
max_ab = max(max(A),max(B))+1
dp = [[INF] * max_ab for _ in range(2**N)]
dp[0][0]=0
for i in range(2**N):
  done = 0
  for j in range(N):
    if (i>>j)&1:
      done += 1
  
  for right_end in range(max_ab):
    if dp[i][right_end]==INF:
      continue
    for add_last in range(N):
      if (i>>add_last)&1:
        continue
      if abs(add_last-done)%2==0:
        add_last_surface = A[add_last]
      else:
        add_last_surface = B[add_last]
        
      if right_end>add_last_surface:
        continue
        
      num = 0
      for k in range(add_last):
        if (i>>k)&1==0:
          num+=1
          
      dp[i|1<<add_last][add_last_surface]=min(dp[i|1<<add_last][add_last_surface],
                                              dp[i][right_end]+num)
      
ans = min(dp[-1])
if ans==INF:
  print(-1)
else:
  print(ans)
Problem p02798 (python)

Fixed submission:
N = int(input())
A = list(map(int,input().split()))
B = list(map(int,input().split()))
judge = False
ans = 10**9
for i in range(2**N):
  even = []
  odd = []
  x = 0
  tmp = True
  for j in range(N):
    if ((i>>j) & 1):
      if j%2==1:
        even.append([B[j],j])
      else:
        odd.append([B[j],j])
      
    else:
      if j%2==1:
        odd.append([A[j],j])
      else:
        even.append([A[j],j])
        
  if N%2==0:
    if len(even)!=len(odd):
      continue
      
  else:
    if (len(even)-1)!=len(odd):
      continue
      

  even = sorted(even,key = lambda x:x[0])
  odd = sorted(odd,key = lambda x:x[0])
  ind = [0]*N
  for k in range(N//2):
    o = odd[k]
    e = even[k]
    if o[0]<e[0]:
      tmp = False
      break
    
    if (k!=N//2-1)or(N%2==1):
      if o[0]>even[k+1][0]:
        tmp = False
        break
    
    ind[2*k]=e[1]
    ind[2*k+1]=o[1]

  if tmp:
    if N%2==1:
      ind[N-1]=even[-1][1]
      

    for k in range(N):
      y = ind[k]
      x+=abs(y-k)
      ind = [x+1 if (x<y)and(x>=k) else x for x in ind]
    ans = min(ans,x)
    judge = True
    
if judge:
  print(ans)
else:
  print(-1)

Buggy submission (verdict: Runtime Error):
N = int(input())
A = list(map(int,input().split()))
B = list(map(int,input().split()))
judge = False
ans = 10**9
for i in range(2**N):
  even = []
  odd = []
  x = 0
  tmp = True
  for j in range(N):
    if ((i>>j) & 1):
      if j%2==1:
        even.append([B[j],j])
      else:
        odd.append([B[j],j])
      
    else:
      if j%2==1:
        odd.append([A[j],j])
      else:
        even.append([A[j],j])
        
  if N%2==0:
    if len(even)!=len(odd):
      continue
      
  else:
    if (len(even)-1)!=len(odd):
      continue
      

  even = sorted(even,key = lambda x:x[0])
  odd = sorted(odd,key = lambda x:x[1])
  ind = [0]*N
  for k in range(N//2):
    o = odd[k]
    e = even[k]
    if (o[0]<e[0])or(o[0]>even[k+1][0]):
      tmp = False
      break
  
    else:
      ind[2*k]=e[1]
      ind[2*k+1]=o[1]
      
  if tmp:
    if N%2==1:
      ind[N-1]=even[-1][1]
    for k in range(N):
      y = ind[k]
      x+=abs(y-k)
      ind = [x+1 if (x<y)and(x>=k) else x for x in ind]
    ans = min(ans,x)
    judge = True
    
if judge:
  print(ans)
else:
  print(-1)