qyliang/CodeNanoFix huggingface dataset:
Buggy code:
a, b, c, d = map(int, input().split())
print(max(a * b, a * c, b + c, b * d))

Fixed code:
a, b, c, d = map(int, input().split())
print(max(a*c, a*d, b*c, b*d ))
Buggy code:
n = int(input())
h = list(map(int, input().split()))
dp = [10 ** 18 for _ in range(n)]
dp = [0]
for i in range(1, n):
    dp[i] = min(dp[i-1] + abs(h[i] - h[i-1]),
                dp[i-2] + abs(h[i] - h[i-2]))
print(dp[-1])


Fixed code:
n=int(input())
h=list(map(int,input().split()))
dp=[0]*n
dp[0]=0
dp[1]=abs(h[1]-h[0])
for i in range(2,n):
  dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]))
print(dp[n-1])
Buggy code:
import sys 
sys.setrecursionlimit(10**6)
def dp(n,cache,height):
  if n<0:
    return float('inf')
  elif n==0:
    return 0
  elif n==1:
    return abs(height[1]-height[0])
  elif n in cache :
    return cache[n]
  else:
    cache[n]= min(dp(n-1,cahche,height)+abs(height[n]-height[n-1]),dp(n-2,cahche,height)+abs(height[n]-height[n-2]))
	return cache[n]
n=int(input())
h=list(map(int,input().split()))
print(dp(n-1,dict(),h))

Fixed code:
import sys 
sys.setrecursionlimit(10**6)
def dp(n,cache,height):
  if n<0:
    return float('inf')
  elif n==0:
    return 0
  elif n==1:
    return abs(height[1]-height[0])
  elif n in cache :
    return cache[n]
  else:
    cache[n]= min(dp(n-1,cache,height)+abs(height[n]-height[n-1]),dp(n-2,cache,height)+abs(height[n]-height[n-2]))
    return cache[n]
n=int(input())
h=list(map(int,input().split()))
print(dp(n-1,dict(),h))
Buggy code:
n=int(input())
h=list(map(int,input().split()))
dp=[0]*n
dp[0]=0
dp[1]=abs(h[1]-h[0])
dp[2]=min(abs(h[1]-h[0]),abs(h[2]-h[0]))
for i in range(2,n):
    dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]))
print(dp[n-1])


Fixed code:
n = int(input())
h = list(map(int,input().split()))
dp = [float('inf')]*n
dp[0],dp[1]=0,abs(h[1]-h[0])
for i in range(2,n):
  dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]))
print(dp[-1])
Buggy code:
n=int(input())
h=list(map(int,input().split()))
dp=[0]*n
dp[0]=0
dp[1]=abs(h[1]-h[0])
dp[2]=min(abs(h[1]-h[0]),abs(h[2]-h[0]))
for i in range(3,n):
    dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]))
print(dp[n-1])


Fixed code:
n=int(input())
h=list(map(int, input().split()))
dp=[0]*n
dp[1]=abs(h[1]-h[0])

for i in range(2, n):
    a=abs(h[i]-h[i-1])
    b=abs(h[i]-h[i-2])
    dp[i]=min((dp[i-1]+a), (dp[i-2]+b))

print(dp[n-1])
Buggy code:
n = int(input())
h = list(map(int, input().split()))
dp = [10 ** 18 for _ in range(n)]
for i in range(1, n):
    dp[i] = min(
        abs(h[i]-h[i-1]) + dp[i-1],
        abs(h[i]-h[i-2]) + dp[i-2])
print(dp[-1])

Fixed code:
n = int(input())
h = list(map(int, input().split()))
dp = [10 ** 18 for _ in range(n)]
dp[0] = 0

for i in range(1, n):
    dp[i] = min(abs(h[i] - h[i-1]) + dp[i-1], abs(h[i] - h[i-2]) + dp[i-2])
print(dp[-1])
Buggy code:
n = int(input())
a = list(map(int, input().split()))
a.append(99999)
dp = [0] * (n+1)
dp[0] = 0

for i in range(n):
    print(dp)
    if (i > 0):
        dp[i+1] = min(dp[i] + abs(a[i]-a[i+1]),
                      dp[i-1] + abs(a[i-1]-a[i+1]) )
    else:
        dp[i+1] = dp[i] + abs(a[i]-a[i+1])


Fixed code:
n = int(input())
a = list(map(int, input().split()))
a.append(99999)
dp = [0] * (n+1)
dp[0] = 0

for i in range(n):
    # print(dp)
    if (i > 0):
        dp[i+1] = min(dp[i] + abs(a[i]-a[i+1]),
                      dp[i-1] + abs(a[i-1]-a[i+1]) )
    else:
        dp[i+1] = dp[i] + abs(a[i]-a[i+1])

print(dp[n-1])
Buggy code:
N,K= map(int,input().split())
h = list(map(int,input().split()))
dp =[0]*N
dp[0] = 0
dp[1] = h[0]
for j in range(1,N):
  dp[j] = dp[j-1] + abs(h[j] - h[j-1])
  for i in range(max(j-K,0),j):
    dp[j]=min(dp[i]+ abs(h[j]-h[i]),dp[j]) 
print(dp[-1])

Fixed code:
N = int(input())
h = list(map(int,input().split()))
dp = [0]*N
dp[0]= 0
dp[1] = abs(h[1]-h[0])
for i in range(1,N-1):
  dp[i+1] = min(dp[i-1] + abs(h[i+1]-h[i-1]),dp[i] + abs(h[i+1]-h[i]))
  
print(dp[-1])
Buggy code:
N = int(input())
H,=map(int, input().split())

dp = [0]*N

for i in range(1, N, 1):
  if i==1:
    dp[i] = abs(H[i-1]-H[i])
      cost1 = dp[i-1]+abs(H[i-1]-H[i])
      cost2 = dp[i-2]+abs(H[i-2]-H[i])
      dp[i] = min(dp[i-1], dp[i-2])

   
print(dp[N-1])

Fixed code:
N = int(input())
*H,=map(int, input().split())

dp = [0]*N

for i in range(1, N, 1):
    if i==1:
        dp[i] = abs(H[i-1]-H[i])
        continue
    cost1 = dp[i-1]+abs(H[i-1]-H[i])
    cost2 = dp[i-2]+abs(H[i-2]-H[i])
    dp[i] = min(cost1, cost2)

   
print(dp[N-1])
Buggy code:
n = int(input())
h = list(map(int, input().split()))
dp = [ 10**10 for _ in range(n)]
dp[0] = 0
dp[1] = dp[0] + abs(h[1] - h[0])
if(n > 2):
  for i in range(2, n):
    dp[i] = min([dp[i-1] + abs(h[i] - h[i - 1]), dp[i-2] + abs(h[i] - h[i - 2])])
    print(i, dp[i-1] + abs(h[i] - h[i - 1]), dp[i-2] + abs(h[i] - h[i - 2]))
print(dp[-1])

Fixed code:
n = int(input())
hight = list(map(int,input().split()))
dp = [0] + [10**10]*(n-1)

for i in range(1,n):
    dp[i] = min(dp[i], dp[i-1]+abs(hight[i]-hight[i-1]))
    if i > 1:
        dp[i] = min(dp[i], dp[i-2]+abs(hight[i]-hight[i-2]))
print(dp[-1])
Buggy code:
n = int(input())
h = list(map(int, input().split()))

dp = [0 for i in range(n)]
dp[0] = h[0]
dp[1] = dp[0] + h[1]
for i in range(2, n):
  dp[i] = min([dp[i-1] + abs(h[i] - h[i-1]), dp[i-2] + abs(h[i] - h[i-2])])
print(dp)

Fixed code:
n=int(input())
h=list(map(int,input().split()))
dp=[1000000000 for i in range(100010)]
dp[0]=0
for i in range(1,n):
  if i == 1:
    dp[i]=abs(h[i]-h[i-1])
  dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]))
print(dp[n-1])
Buggy code:
def cost(n, nums):
    dp = [0 for _ in range(n)]
    dp[0] = 0
    dp[1] = abs(nums[1] - nums[0])
    for i in range(2, n):
        dp[i] = min(
            dp[i-1] + abs(nums[i]-nums[i-1]),
            dp[i-2] + abs(nums[i]-nums[i-2]))
    print(dp)
    return dp[-1]

n = int(input())
nums = [int(i) for i in input().split()]
print(cost(n, nums))

Fixed code:

def cost(n, nums):
    dp = [0 for _ in range(n)]
    dp[0] = 0
    dp[1] = abs(nums[1] - nums[0])
    for i in range(2, n):
        dp[i] = min(
            dp[i-1] + abs(nums[i]-nums[i-1]),
            dp[i-2] + abs(nums[i]-nums[i-2]))
    return dp[-1]

n = int(input())
nums = [int(i) for i in input().split()]
print(cost(n, nums))
Buggy code:
n=int(input())
l=list(map(int,input().split()))
dp=[float("INF")]*n
dp[0]=0
for i in range(2,n):
  for j in range(1,3):
    dp[i]=min(dp[i-j]+abs(l[i]-l[i-j]),dp[i])
print(dp[-1])

Fixed code:
n=int(input())
l=list(map(int,input().split()))
dp=[float("INF")]*n
dp[0]=0;dp[1]=abs(l[0]-l[1])
for i in range(2,n):
  for j in range(1,3):
    dp[i]=min(dp[i-j]+abs(l[i]-l[i-j]),dp[i])
print(dp[-1])
Buggy code:
from collections import defaultdict as dd
N = int(input())
cost = [int(x) for x in input().split()]
for i in range(3):
    cost.append(0)
INF = 10**6
dp = dd(lambda:INF)
dp[0] = 0
print(cost)
for i in range(N):
    for j in range(1,3):
        print(i,j,i+j,dp[i+j])
        dp[i+j] = min(dp[i]+abs(cost[i+j]-cost[i]),dp[i+j])

print(dp[N-1])

Fixed code:
from collections import defaultdict as dd

N = int(input())
cost = [int(x) for x in input().split()]
for i in range(2):
    cost.append(0)
INF = 10**9
dp = dd(lambda:INF)
dp[0] = 0

for i in range(N-1):
    for j in range(1,3):
        dp[i+j] = min(dp[i]+abs(cost[i+j]-cost[i]),dp[i+j])

print(dp[N-1])
Buggy code:
N = int(input())
H = [0] + list(map(int, input().split()))

DP = [0]*(N+1)

for i in range(1, N+1):
    if i == 1:
        DP[i] = H[1]
        continue
    if i == 2:
        DP[i] = abs(H[1] - H[2])
        continue
    c1 = abs(H[i-1] - H[i])
    c2 = abs(H[i-2] - H[i])
    DP[i] = min(DP[i-1] + c1, DP[i-2] + c2)


print(DP[N])


Fixed code:
N = int(input())
H = [0] + list(map(int, input().split()))

DP = [0]*(N+1)

for i in range(2, N+1):
    if i == 2:
        DP[i] = abs(H[1] - H[2])
        continue
    c1 = abs(H[i-1] - H[i])
    c2 = abs(H[i-2] - H[i])
    DP[i] = min(DP[i-1] + c1, DP[i-2] + c2)


print(DP[N])
Buggy code:
n,h=int(input()),list(map(int,input().split()))
dp=[0]*n
dp[1]=abs(h[1]-h[0])
for i in range(2,n):dp[i]=min(dp[i-2]+abs(h[i-2]-h[i]),dp[i-1]+abs(h[i-1]-h[i]))
print(h[n-1])

Fixed code:
n,h=int(input()),list(map(int,input().split()))
dp=[0,abs(h[1]-h[0])]+[0]*(n-2)
for i in range(2,n):dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]))
print(dp[n-1])
Buggy code:
N= int(input())
h= list(map(int, input().split()))

dp=[N+1]

dp[0]= 0
dp[1]= h[0]

for i in range(1, N+1):
    dp[i]= min( (dp[n-1]+ abs(h[n]-h[n-1]) , dp[n-2]+ abs(h[n]-h[n-2])))

print(dp[N])


Fixed code:
N = int(input())
h = list(map(int,input().split()))
dp = [0]*N
dp[0] = 0
dp[1]=abs(h[1]-h[0])
for i in range(2,N):
  dp[i] += min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]))
print(dp[-1])
Buggy code:
N = int(input())
a = list()
for i in input().split(' '):
    a.append(int(i))

cost = list()
for i in range(N):
    if i == 0:
        cost.append(0)
    elif i == 1:
        cost.append(abs(a[1] - a[0]))
    else:
        c1 = abs(a[i] - a[i-1]) + cost[i-1]
        c2 = abs(a[i] - a[i-2]) + cost[i-2]
        cost.append( c1 if c1<c2  else c2)

cost[-1]

Fixed code:
N = int(input())
a = list()
for i in input().split(' '):
    a.append(int(i))

cost = list()
for i in range(N):
    if i == 0:
        cost.append(0)
    elif i == 1:
        cost.append(abs(a[1] - a[0]))
    else:
        c1 = abs(a[i] - a[i-1]) + cost[i-1]
        c2 = abs(a[i] - a[i-2]) + cost[i-2]
        cost.append( c1 if c1<c2  else c2)

print(cost[-1])
Buggy code:
import sys
import math
import itertools
import collections
from collections import deque

sys.setrecursionlimit(1000000)
MOD = 10 ** 9 + 7
input = lambda: sys.stdin.readline().strip()

NI = lambda: int(input())
NMI = lambda: map(int, input().split())
NLI = lambda: list(NMI())
SI = lambda: input()

def main():
    N = NI()
    h = NLI()
    
    dp = [0 for _ in range((10**5)+10)]
    dp[0] = 0
    dp[1] = abs(h[1]-h[0])
    
    for n in range(2,N):
        dp[n] = min(dp[n-2]+abs(h[n]-h[n-2]),dp[n-1]+abs(h[n]-h[n-1]))
    print(dp[n])


if __name__ == '__main__':
    main()

Fixed code:
import sys
import math
import itertools
import collections
from collections import deque
 
sys.setrecursionlimit(1000000)
MOD = 10 ** 9 + 7
input = lambda: sys.stdin.readline().strip()
 
NI = lambda: int(input())
NMI = lambda: map(int, input().split())
NLI = lambda: list(NMI())
SI = lambda: input()
 
def main():
    N = NI()
    h = NLI()
    
    dp = [0 for _ in range((10**5)+10)]
    dp[0] = 0
    dp[1] = abs(h[1]-h[0])
    
    for n in range(2,N):
        dp[n] = min(dp[n-2]+abs(h[n]-h[n-2]),dp[n-1]+abs(h[n]-h[n-1]))
    print(dp[N-1])
 
 
if __name__ == '__main__':
    main()
Buggy code:
n=int(input())
h=list(map(int,input().split()))

dp=[0]*n
dp[0]=0
dp[1]=abs(h[1]-h[2])

for i in range(2,n):
    dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]))

print(dp[n-1])

Fixed code:
n = int(input())
H = list(map(int,input().split()))
dp = [0]*(n+1)
dp[1] = abs(H[1]-H[0])
for i in range(2,n):
    dp[i] = min(dp[i-1]+abs(H[i]-H[i-1]),dp[i-2]+abs(H[i]-H[i-2]))
print(dp[n-1])
Buggy code:
n = int(input())
h = list(map(int, input().split()))
dp = [0 for i in range(n)]

dp[0] = 0
dp[1] = abs(h[1] - h[0])
for i in range(2, n):
  dp[i] = min(dp[i-1] + abs(h[i] - h[i-1]), dp[i-2] + abs(h[i] - h[i-2]))
  print(dp[i])

print(dp[n-1])
  
  

Fixed code:
n = int(input())
h = list(map(int,input().split()))
dp = [0]*n
dp[1] = abs(h[1]-h[0])
for i in range(2,n):
    dp[i] = min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]))
print(dp[n-1])
Buggy code:
n = int(input())
h = list(map(int, input().split()))
dp = [0]*(n+1)
dp[0] = 0
for i in range(1, n):
    if i == 1:
        dp[i] = dp[i-1] + abs(h[i]-h[i-1])
    else:
        dp[i] = min(dp[i-1] + abs(h[i]-h[i-1]),
                    dp[i-2] + abs(h[i]-h[i-1]))
print(dp[n-1])

Fixed code:
n = int(input())
h = list(map(int, input().split()))

dp = [0]*n
dp[0] = 0
dp[1] = abs(h[1]-h[0])

for i in range(2, n):
    dp[i] = min(dp[i-1] + abs(h[i] - h[i-1]), dp[i-2] + abs(h[i]-h[i-2]))

print(dp[n-1])
Buggy code:
N=int(input())
h=list(map(int,input().split()))
DP=[0]*N
DP[0]=0
DP[1]=h[1]-h[0]-DP[0]
i=2
while i<N:
  DP[i]=min(abs(h[i]-h[i-1]-DP[i-1]),abs(h[i]-h[i-2]-DP[i-2]))
  i+=1
print(DP[-1])

Fixed code:
N=int(input())
h=list(map(int,input().split()))
DP=[0]*N
DP[0]=0
DP[1]=abs(h[1]-h[0])+DP[0]
i=2
while i<N:
  DP[i]=min(abs(h[i]-h[i-1])+DP[i-1],abs(h[i]-h[i-2])+DP[i-2])
  i+=1
print(DP[-1])
Buggy code:
input = open('file.txt').readline

    
n = int( input() )
arr = list( map( int , input().strip().split(" ") ) )

dp = [ 0 for i in range(n) ]

for i in range(1,n):

    #one jump
    cost1 = abs(arr[i] - arr[i-1]) + dp[i-1] 
    cost2 = cost1 + 2
    # two jump
    if i != 1:
        cost2 = abs(arr[i] - arr[i-2]) + dp[i-2]

    dp[i] = min( cost1  ,cost2 )

print(dp[n-1])

Fixed code:
    
n = int( input() )
arr = list( map( int , input().strip().split(" ") ) )

dp = [ 0 for i in range(n) ]

for i in range(1,n):

    #one jump
    cost1 = abs(arr[i] - arr[i-1]) + dp[i-1] 
    cost2 = cost1 + 2
    # two jump
    if i != 1:
        cost2 = abs(arr[i] - arr[i-2]) + dp[i-2]

    dp[i] = min( cost1  ,cost2 )

print(dp[n-1])
Buggy code:
n=int(input())
h=list(map(int,input().split()))
dp=[0]*n
dp[0]=0
dp[1]=abs(h[1]-h[0])
for i in range(2,n):
    dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[0]))

print(dp[n-1])

Fixed code:
n=int(input())
h=list(map(int,input().split()))
dp=[0]*n
dp[0]=0
dp[1]=abs(h[1]-h[0])
for i in range(2,n):
    dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]))

print(dp[n-1])
Buggy code:

def chmin(a,b):
	if a >= b :
		a = b
		return a
	else:
		return a

n = int(input())
h = list(map(int,input().split()))
dp = [-1]*(n+1)
dp[1] = 0
dp[2] = abs(h[1]-h[0])

for i in range(1,n-1):
	dp[i+2] = my_function.chmin(
		dp[i+1]+abs(h[i+1]-h[i])
		,dp[i]+abs(h[i+1]-h[i-1]))

print(dp[n])

Fixed code:

def chmin(a,b):
	if a >= b :
		a = b
		return a
	else:
		return a

n = int(input())
h = list(map(int,input().split()))
dp = [-1]*(n+1)
dp[1] = 0
dp[2] = abs(h[1]-h[0])

for i in range(1,n-1):
	dp[i+2] = chmin(
		dp[i+1]+abs(h[i+1]-h[i])
		,dp[i]+abs(h[i+1]-h[i-1]))

print(dp[n])
Buggy code:
INF=100000000
def frog(i,h,dp):
    global INF
    if dp[i]!=INF:
        return dp[i]
    else:
        if i==1:
            dp[i]=0
            return dp[i]
        elif i==2:
            dp[i]=abs(h[1]-h[0])
            return dp[i]
        else:
            dp[i]=min(frog(i-2,h,dp)+abs(h[i-1]-h[i-3]),frog(i-1,h,dp)+abs(h[i-1]-h[i-2]))
            return dp[i]
sys.setrecursionlimit(INF)
N=int(input())
h=list(map(int,input().split()))
dp=[INF for i in range(N+1)]
print(frog(N,h,dp))


Fixed code:
import sys
INF=100000000
def frog(i,h,dp):
    global INF
    if dp[i]!=INF:
        return dp[i]
    else:
        if i==1:
            dp[i]=0
            return dp[i]
        elif i==2:
            dp[i]=abs(h[1]-h[0])
            return dp[i]
        else:
            dp[i]=min(frog(i-2,h,dp)+abs(h[i-1]-h[i-3]),frog(i-1,h,dp)+abs(h[i-1]-h[i-2]))
            return dp[i]
sys.setrecursionlimit(INF)
N=int(input())
h=list(map(int,input().split()))
dp=[INF for i in range(N+1)]
print(frog(N,h,dp))
Buggy code:
import numpy as np
n=map(int,input().split())
k=2
h=np.array(list(map(int,input().split()))+[0]*k)
dp = np.full(n+k, 10 ** 10, dtype=np.int64)
dp[0] = 0
for i in range(1,n):
    dp[i:i+k]=np.minimum(dp[i:i+k],np.abs(h[i:i+k]-h[i-1])+dp[i-1])
print(dp[n-1])

Fixed code:
import numpy as np
n=int(input())
h=np.array(list(map(int,input().split()))+[0]*2)
dp = np.full(n+2, 10 ** 10, dtype=np.int64)
dp[0] = 0
for i in range(1,n):
    dp[i:i+2]=np.minimum(dp[i:i+2],np.abs(h[i:i+2]-h[i-1])+dp[i-1])
print(dp[n-1])
Buggy code:
N = int(input())
a = list(map(int,input().split()))
ans = []
ans.append(0)
ans.append(abs(a[1]-a[0]))
i = 2
while i<N:
  x = ans[i-2]+abs(a[i]-a[i-2])
  y = ans[i-1]+abs(a[i]-a[i-1])
  ans.append(min(x,y))
  i += 1
print(ans)

Fixed code:
N = int(input())
a = list(map(int,input().split()))
ans = []
ans.append(0)
ans.append(abs(a[1]-a[0]))
i = 2
while i<N:
  x = ans[i-2]+abs(a[i]-a[i-2])
  y = ans[i-1]+abs(a[i]-a[i-1])
  ans.append(min(x,y))
  i += 1
print(ans[N-1])
Buggy code:
n=int(input())
a=list(map(int,input().split()))
dp=[-1]*n
dp[0]=0
dp[1]=abs(a[1]-a[0])
for i in range(2,len(a)):
    dp[i]=min(dp[i-2]+abs(a[i]-a[i-2]),dp[i-1]+abs(a[i]-a[i-1]))
print(dp)
print(dp[-1])


Fixed code:
n = int(input())
h = list(map(int,input().split()))

dp = [0]*n

dp[0]=0
dp[1]=abs(h[1]-h[0])

for i in range(2,n):
  dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]))

print(dp[n-1])
Buggy code:
sys.setrecursionlimit(200000)

n = int(input())
h = list(map(int, input().split()))

dp = []
for i in range(n):
    dp.append(-1)
 
def flog(m):
    if dp[m] != -1:
        return dp[m]
    if m == 0:
        dp[m] = 0
        return 0
    if m == 1:
        dp[m] = abs(h[0]-h[1])
        return dp[m]
    else:
        dp[m] = min(flog(m-1) + abs(h[m-1] - h[m]),flog(m-2) + abs(h[m-2] - h[m]))
        return dp[m]
  
print(flog(n-1))

Fixed code:
import sys
import resource

sys.setrecursionlimit(200000)

n = int(input())
h = list(map(int, input().split()))

dp = []
for i in range(n):
    dp.append(-1)
 
def flog(m):
    if dp[m] != -1:
        return dp[m]
    if m == 0:
        dp[m] = 0
        return 0
    if m == 1:
        dp[m] = abs(h[0]-h[1])
        return dp[m]
    else:
        dp[m] = min(flog(m-1) + abs(h[m-1] - h[m]),flog(m-2) + abs(h[m-2] - h[m]))
        return dp[m]
  
print(flog(n-1))
Buggy code:
n = int(input())
h = list(map(int, input().split()))
 
dp = []
for i in range(n):
	dp.append(0)
dp[0] = 0
dp[1] = abs(h[0]-h[1])
 
for j in range(2,n):
	dp[j] = min(flog(j-1) + abs(h[j-1] - h[j]),flog(j-2) + abs(h[j-2] - h[j]))
  
print(dp[n-1])

Fixed code:
n=int(input())
h=list(map(int,input().split()))
dp=[0,abs(h[1]-h[0])]
for i in range(n-2):
	dp.append(min(dp[i]+abs(h[i+2]-h[i]),dp[i+1]+abs(h[i+2]-h[i+1])))
print(dp[-1])
Buggy code:
n=int(input())
l=list(map(int,input().split()))
dp=[0]*(n)
dp[0]=0
dp[1]=abs(l[0]-l[1])
dp[2]=abs(l[2]-l[1])
for i in range(2,n):
    dp[i]=min(abs(l[i]-l[i-2])+dp[i-2],abs(l[i]-l[i-1])+dp[i-1])
print(dp[-1])

Fixed code:
n = int(input())
h = list(map(int, input().split()))
dp = [0]*n
dp[0] = 0
dp[1] = abs(h[1]-h[0])

for i in range(2, n):
    height = h[i]
    dp[i] = min(dp[i-1]+abs(h[i]-h[i-1]), dp[i-2]+abs(h[i]-h[i-2]))

print(dp[-1])
Buggy code:
N = eval(input())
H = list(map(int, input().split()))
dp = [0, H[1] - H[0]]
if N > 2:
    for i in range(2, N):
        dp.append(min(abs(H[i] - H[i-2])+dp[-2], abs(H[i] - H[i-1])+dp[-1]))
else:
    print(dp[-1])
    exit()
print(dp[-1])

Fixed code:
N = eval(input())
H = list(map(int, input().split()))
dp = [0, abs(H[1] - H[0])]
if N > 2:
    for i in range(2, N):
        dp.append(min(abs(H[i] - H[i-2])+dp[-2], abs(H[i] - H[i-1])+dp[-1]))
else:
    print(dp[-1])
    exit()
print(dp[-1])
Buggy code:
N = int(input())
h = [int(x) for x in input().split()]

dp = [1000000 for _ in range(N)]
dp[0] = 0
dp[1] = abs(h[1] - h[0])

for i in range(2, N):
    dp[i] = min(dp[i], dp[i] + abs(h[i] - h[i-1]))
    dp[i] = min(dp[i], dp[i] + abs(h[i] - h[i-2]))
print(dp[-1])

Fixed code:
N = int(input())
h = [int(x) for x in input().split()]

dp = [1000000 for _ in range(N)]
dp[0] = 0
dp[1] = abs(h[1] - h[0])

for i in range(2, N):
#     dp[i] = min(dp[i], dp[i-1] + abs(h[i] - h[i-1]))
#     dp[i] = min(dp[i], dp[i-2] + abs(h[i] - h[i-2]))
    dp[i] = min(dp[i-1] + abs(h[i] - h[i-1]), dp[i-2] + abs(h[i] - h[i-2]))
print(dp[-1])
Buggy code:
n=int(input())
l=list(map(int,input().split()))
def frog(l,n):
  dp=[0]*n
  dp[0]=0
  dp[1]=abs(l[1]-l[0])
  for i in range(2,n):
    dp[i]=min(dp[i-1]+ abs(l[i]-l[i-1]),dp[i-2]+abs(l[i]-l[i-2]))
  return dp[n-1]

Fixed code:
def frog(l,n):
  dp=[0]*n
  dp[0]=0
  dp[1]=abs(l[1]-l[0])
  for i in range(2,n):
    dp[i]=min(dp[i-1]+ abs(l[i]-l[i-1]),dp[i-2]+abs(l[i]-l[i-2]))
  return dp[n-1]
n=int(input())
l=list(map(int,input().split()))
print(frog(l,n))
Buggy code:
import sys
N = input()
h = map(int,input().split())
h = list(h)

dp = [sys.maxsize]*N
dp[0]=0

for i in range(int(N)):
    for j in range(i+1,i+2+1):
        if j<int(N) :
            dp[j]=min(dp[j],dp[i]+abs(h[i]-h[j]))

print(dp[int(N)-1])

Fixed code:
import sys
n =int(input())
h = map(int,input().split())
h = list(h)

dp = [sys.maxsize]*n
dp[0]=0

for i in range(n):
    for j in range(i+1,i+2+1):
        if j<n :
            dp[j]=min(dp[j],dp[i]+abs(h[i]-h[j]))

print(dp[n-1])
Buggy code:
n = int(input())
h = [0] + list(map(int, input().split()))

dp =[0, h[0]]

for i in range(2, n):
    dp += [min(dp[i-2] + abs(h[i] - h[i-2]), dp[i-1] + abs(h[i] - h[i-1]))]

print(dp[-1])

Fixed code:
n = int(input())
h = list(map(int, input().split()))

dp =[0, abs(h[1] - h[0])]

for i in range(2, n):
    dp += [min(dp[i-2] + abs(h[i] - h[i-2]), dp[i-1] + abs(h[i] - h[i-1]))]

print(dp[-1])
Buggy code:
#frog
N = int(input())
h = list(map(int,input().split()))
dp = [10000000000000] * N
dp[0] = 0

def dpf():
    for i in range(1,N):
        x = abs( h[i] - h[i-1] ) + dp[i-1]
        y = abs( h[i] - h[i-2] ) + dp[i-2]
        if x >=y:
            dp[i] = y
        else:
            dp[i] = x

def solve():
    dpf()
    print(dp)
    print(dp[N-1])

if __name__ == "__main__":
    solve()


Fixed code:
#frog
N = int(input())
h = list(map(int,input().split()))
dp = [10000000000000] * N
dp[0] = 0

def dpf():
    for i in range(1,N):
        x = abs( h[i] - h[i-1] ) + dp[i-1]
        y = abs( h[i] - h[i-2] ) + dp[i-2]
        if x >=y:
            dp[i] = y
        else:
            dp[i] = x

def solve():
    dpf()
    print(dp[N-1])

if __name__ == "__main__":
    solve()
Buggy code:
N=int(input())
H=list(map(int,input().split(' ')))
dp=[]

for i in range(N):
	if i==0:
		dp.append(0)
	elif k==1:
		dp.append(abs(H[1]-H[0]))
	else:
		return min(dp[k-2]+abs(H[k]-H[k-2]), dp[k-1]+abs(H[k]-H[k-1]))
		
print(dp[N-1])

Fixed code:
N=int(input())
H=list(map(int,input().split(' ')))
dp=[]

for k in range(N):
	if k==0:
		dp.append(0)
	elif k==1:
		dp.append(abs(H[1]-H[0]))
	else:
		dp.append(min(dp[k-2]+abs(H[k]-H[k-2]), dp[k-1]+abs(H[k]-H[k-1])))
		
print(dp[N-1])
Buggy code:
def main():
    n = int(input())
    hts = list(map(int,input().split()))
    if n == 2:
        print(abs(hts[0]-hts[1]))
        return
    
    dp = [float('inf')]*n
    dp[0] = 0
    dp[1] = abs(dp[1]-dp[0])
##    for i in range(1,k):
##        dp[i]

    for i in range(2,n):
        dp[i] = min(dp[i-1]+abs(hts[i]-hts[i-1]),
                    dp[i-2]+abs(hts[i]-hts[i-2]))

    print(dp[-1])

main()


Fixed code:
def main():
    n = int(input())
    hts = list(map(int,input().split()))
    if n == 2:
        print(abs(hts[0]-hts[1]))
        return
    
    dp = [float('inf')]*n
    dp[0] = 0
    dp[1] = abs(hts[1]-hts[0])
##    for i in range(1,k):
##        dp[i]

    for i in range(2,n):
        dp[i] = min(dp[i-1]+abs(hts[i]-hts[i-1]),
                    dp[i-2]+abs(hts[i]-hts[i-2]))

    #print(dp)

    print(dp[-1])

main()
Buggy code:
import sys
sys.setrecursionlimit(sys.maxsize)

n = int(input())
h = [int(x) for x in input().split()]
dp = [-1 for _ in range(n)]


def rec_dp(i: int) -> int:
    global h, dp
    if i == 0:
        return 0
    if dp[i] != -1:
        return dp[i]
    res = rec_dp(i - 1) + abs(h[i] - h[i - 1])
    if i - 2 >= 0:
        res = min(rec_dp(i - 2) + abs(h[i] - h[i - 2]), res)
    dp[i] = res
    return res


print(rec_dp(n - 1))


Fixed code:
import sys
sys.setrecursionlimit(10 ** 9)

n = int(input())
h = [int(x) for x in input().split()]
dp = [-1 for _ in range(n)]


def rec_dp(i: int) -> int:
    global h, dp
    if i == 0:
        return 0
    if dp[i] != -1:
        return dp[i]
    res = rec_dp(i - 1) + abs(h[i] - h[i - 1])
    if i - 2 >= 0:
        res = min(rec_dp(i - 2) + abs(h[i] - h[i - 2]), res)
    dp[i] = res
    return res


print(rec_dp(n - 1))