qyliang/CodeNanoFix huggingface dataset:
Buggy code:
N = int(input())
B = list(map(int, input().split()))

ans = B[-1]

for i in range(N-2):
    ans += min(B[i],B[i+1])

if N == 2:
    ans += B[0]


print(ans)

Fixed code:
N=int(input())
B=list(map(int, input().split()))
ans=0
for i in range(N-2):
    ans+=min(B[i],B[i+1])
ans+=B[-1]+B[0]
print(ans)
Buggy code:
N = int(input())
b = list(map(int, input().split()))
a = [b[0]]
if N == 2:
  a.append[b[0]]
elif N > 2:
  for i in range(N-2):
    a.append(min(b[i], b[i+1]))
  a.append(b[N-2])

print(sum(a))

Fixed code:
N = int(input())
b = list(map(int, input().split()))
a = [b[0]]
if N == 2:
  print(2*a[0])
elif N > 2:
  for i in range(N-2):
    a.append(min(b[i], b[i+1]))
  a.append(b[N-2])
  print(sum(a))
Buggy code:
N = int(input())
B = list(map(int,input().split()))
if N==2:
    print(B[0]*2)
else:
    A = [0]*N

    for n in range(N-2):
        A[n+1] = min(B[n+1],B[n])
    A[-1] = B[-1]
    print(sum(A))


Fixed code:
N = int(input())
B = list(map(int,input().split()))

A = [0]*N
A[0] = B[0]
for n in range(1,N-1):
    A[n] = min(B[n],B[n-1])
A[N-1] = B[N-2]
print(sum(A))
Buggy code:
N = int(input())
b = list(map(int, input().split()))

count = b[0]
for i in range(1, N-2):
    count = count + min(b[i], b[i+1])
count = count + b[N-2]

print(count)

Fixed code:
N = int(input())
b = list(map(int, input().split()))

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

ans = b[0] + b[-1]
for i in range(n-2):
    ans += min(b[i], b[i+1])
ans

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

ans = b[0] + b[-1]
for i in range(n-2):
    ans += min(b[i], b[i+1])
print(ans)
Buggy code:
N=int(input())
B = [int(i) for i in input().split()]
A = [B[0]]+[min(B[i-1],B[i]) for i in range(N-1)]+[B[-1]]
print(sum(A))


Fixed code:
N = int(input())
B = [int(x) for x in input().split()]
 
A = [B[0]] + [min(B[i-1],B[i]) for i in range(1,N-1)] + [B[-1]]
 
answer = sum(A)
print(answer)
Buggy code:
n = int(input())
b = list(map(int, input().split()))

ans = 0


def mini(x, y):
    if x > y:
        return y
    else:
        return x


for i in range(n):
    if i == 0:
        ans += b[0]
    if i == n-1:
        ans += b[n-2]
    else:
        ans += mini(b[i-1], b[i])

print(ans)


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

ans = 0


def mini(x, y):
    if x > y:
        return y
    else:
        return x


for i in range(n):
    if i == 0:
        ans += b[0]
    elif i == n-1:
        ans += b[n-2]
    else:
        ans += mini(b[i-1], b[i])

print(ans)
Buggy code:
N = int(input())
lis = list(map(int, input().split()))
print(lis)
result = []
result.append(lis[0])
for i in range(N-2):
    result.append(min(lis[i], lis[i+1]))
result.append(lis[N-2])
print(sum(result))

Fixed code:
N = int(input())
lis = list(map(int, input().split()))
result = []
result.append(lis[0])
for i in range(N-2):
    result.append(min(lis[i], lis[i+1]))
result.append(lis[N-2])
print(sum(result))
Buggy code:
while True:
    try:
        num = int(input())
        lst = list(map(int, input().split()))
        ans = 0
        ans += lst[-1] + lst[0]
        if num == 2:
            print(ans)
            continue
        for i in range(1, num-1):
            ans += min(lst[1], lst[i-1])
        print(ans)
    except:
        break

Fixed code:
while True:
    try:
        num = int(input())
        lst = list(map(int, input().split()))
        ans = 0
        ans += lst[-1] + lst[0]
        if num == 2:
            print(ans)
            continue
        for i in range(1, num-1):
            ans += min(lst[i], lst[i-1])
        print(ans)
    except:
        break
Buggy code:
n = int(input())
b = list(map(int,input().split()))
a = [b[0]]

for i in range(n - 1)
    a.append(min(b[i],b[i+1]))

a.append(b[-1])
print(sum(a))

Fixed code:
n = int(input())
b = list(map(int,input().split()))
a = [b[0]]

for i in range(n-2):
    a.append(min(b[i],b[i+1]))

a.append(b[-1])
print(sum(a))
Buggy code:
N = input()
B = list(map(int, input().split())) 
A =[None] * N
A[0] = B[0]

for i in range(1,len(B)):
    A[i] = min(B[i-1],B[i])
    i += 1

A[N] = B[-1]

print(sum(A))


Fixed code:
N = int(input())
B = list(map(int, input().split())) 
A =[None] * N
A[0] = B[0]

for i in range(1,N-1):
    A[i] = min(B[i-1],B[i])
    i += 1

A[-1] = B[-1]

print(sum(A))
Buggy code:
N = int(input())
B = list(map(int,input().split()))
A = []
A.append(B[0])
A.append(B[0])
for i in range(1, N - 2):
  if B[i] < A[i]:
    A[i] = B[i]
  A.append(B[i])
  
A.append(B[-1])
print(sum(A))

Fixed code:
N = int(input())
B = list(map(int,input().split()))
A = []
A.append(B[0])
for i in range(N - 1):
  if B[i] < A[i]:
    A[i] = B[i]
  A.append(B[i])

print(sum(A))
Buggy code:
n=int(input())
b=list(map(int,input().split()))
a=[0]*n
ans=0
if n == 2:
    print(b[0]*2)
if n==3:
    print(min(b)*2 + max(b))
else:
    a[0]=b[0]
    a[n-1]=b[n-2]
    for i in range(1,n-2):
        a[i]=min(b[i], b[i+1])
    ans =sum(a)
    print(ans)

Fixed code:
n=int(input())
b=list(map(int,input().split()))
a=[0]*n
ans=0
if n == 2:
    print(b[0]*2)
elif n==3:
    print(min(b)*2 + max(b))
else:
    a[0]=b[0]
    for i in range(1,n-1):
        a[i]=min(b[i-1], b[i])
    a[n-1]=b[n-2]
    ans =sum(a)
    print(ans)
Buggy code:
n = int(input())

B = list(map(int,input().split()))
sum = 0
if n == 2:
  sum = B[0]
else:
  for i in range(n-2):
    sum += min(B[i],B[i+1])
  
sum += B[n-2]
print(sum)

Fixed code:
n = int(input())

B = list(map(int,input().split()))
sum = B[0]
for i in range(n-2):
  sum += min(B[i],B[i+1])
  
sum += B[n-2]
print(sum)
Buggy code:
n=int(input())
bs=list(map(int,input().split()))

a=[0]*n
a[0]=bs[0]
a[n-1]=bs[n-2]

for i in range(1,n-1):
    a[i]=min(bs[i-1],bs[i])

print(a)
print(sum(a))


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

a=[0]*n
a[0]=bs[0]
a[n-1]=bs[n-2]

for i in range(1,n-1):
    a[i]=min(bs[i-1],bs[i])


print(sum(a))
Buggy code:
#input
N = int(input())
B = list(map(int, input().split()))

A = [0] * N
for i in range(1, N-1):
    if A[i] > B[i]:
        A[i] = B[i]
    A[i+1] = B[i]
A.insert(0, A[0])

print(sum(A))

Fixed code:
#input
N = int(input())
B = list(map(int, input().split()))

A = [0] * N
A[0], A[1] = B[0], B[0]
for i in range(1, N-1):
    if A[i] > B[i]:
        A[i] = B[i]
    A[i+1] = B[i]

print(sum(A))
Buggy code:

a= int(input())
l = list(map(int,input().split()))
l = l[::-1]
s = 0 
for n,(x,y) in enumerate(zip(l,l[1:])):
    s+= min(x,y)
print(s+l[0])

Fixed code:
a= int(input())
l = list(map(int,input().split()))
l = l[::-1]
s = l[-1]
for n,(x,y) in enumerate(zip(l,l[1:])):
    s+= min(x,y)
print(s+l[0])
Buggy code:
N = int(input())
B = list(map(int,input().split()))

A = 0

for i in range(N-2):
    if i >= 0:
        if B[i] <= B[i+1]:
            A += B[i]
        else:
            A += B[i+1]
print(A+B[0]+B[N-1])


Fixed code:
N = int(input())
B = list(map(int,input().split()))

A = 0

for i in range(N-2):
    if i >= 0:
        if B[i] <= B[i+1]:
            A += B[i]
        else:
            A += B[i+1]
print(A+B[0]+B[N-2])
Buggy code:
n = int(input())
b = list(map(in,input().split()))
ans = b[0] + b[-1]
for i in range(n-2):
  ans+=min(b[i],b[i-1])
print(ans)

Fixed code:
n = int(input())
b = list(map(int,input().split()))
ans = b[0] + b[-1]
for i in range(n-2):
  ans+=min(b[i],b[i+1])
print(ans)
Buggy code:
#C - Maximal Value
N = int(input())
B = list(map(int,input().split()))
print(B)
A = [B[0]]
for i in range(1,N-1):
    print(A)
    if B[i] > B[i-1]:
        A.append(B[i-1])
    else:
        A.append(B[i])
A.append(B[-1])
print(sum(A))

Fixed code:
#C - Maximal Value
N = int(input())
B = list(map(int,input().split()))
A = [B[0]]
for i in range(1,N-1):
    if B[i] > B[i-1]:
        A.append(B[i-1])
    else:
        A.append(B[i])
A.append(B[-1])
print(sum(A))
Buggy code:
n = int(input())
b = list(map(int, input().split()))

ans = [b[0]]

for i in range(n-2):
    if b[i] <= b[i+1]:
        ans.append(b[i])
    else:
        ans.append(b[i+1])

ans.append(b[len(b)-1])

print(ans)

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

ans = [b[0]]

for i in range(n-2):
    if b[i] <= b[i+1]:
        ans.append(b[i])
    else:
        ans.append(b[i+1])

ans.append(b[len(b)-1])

print(sum(ans))
Buggy code:
n = int(input())
B = list(map(int, input().split(" ")))
A = B[0]
An = B[0]
C = B[0]
for i in range(len(B)):
  if An <= B[i]:
    C += An
  else:
    C+= B[i]
  An = B[i]

C += An
print(C)

Fixed code:
n = int(input())
B = list(map(int, input().split(" ")))
A = B[0]
An = B[0]
C = B[0]
for i in range(1,n-1):
  if An <= B[i]:
    C += An
  else:
    C+= B[i]
  An = B[i]

C += An
print(C)
Buggy code:
def solve(inp):
    N = int(inp.readline().strip())
    B = list(map(int, inp.readline().strip().split(' ')))

    A = [0 for i in range(N)]

    A[N - 1] = B[N - 2]
    for i in range(N - 2, 0, -1):
        A[i] = min(B[i - 1], B[i])
    A[0] = B[0]
    print(A)

    return str(sum(A))


def test(s):
    from io import StringIO
    print(solve(StringIO(s)))


def main():
    import sys
    result = solve(sys.stdin)
    if result:
        print(result)


if __name__ == '__main__':
    # test('3\n2 5')
    # test('2\n3')
    # test('6\n0 153 10 10 23')
    main()


Fixed code:
def solve(inp):
    N = int(inp.readline().strip())
    B = list(map(int, inp.readline().strip().split(' ')))

    A = [0 for i in range(N)]

    A[N - 1] = B[N - 2]
    for i in range(N - 2, 0, -1):
        A[i] = min(B[i - 1], B[i])
    A[0] = B[0]
    # print(A)

    return str(sum(A))


def test(s):
    from io import StringIO
    print(solve(StringIO(s)))


def main():
    import sys
    result = solve(sys.stdin)
    if result:
        print(result)


if __name__ == '__main__':
    # test('3\n2 5')
    # test('2\n3')
    # test('6\n0 153 10 10 23')
    main()
Buggy code:
n=int(input())
b=list(map(int,input().split()))
k=[]
if n>2:
    for i in range(n-2):
        if i==0:k.append(b[i])
        k.append(min(b[i],b[i+1]))
    k.append(b[-1])
else:k.append(b[-1])
print(sum(k))

Fixed code:
n=int(input())
b=list(map(int,input().split()))
k=[]
if n>2:
    for i in range(n-2):
        if i==0:k.append(b[i])
        k.append(min(b[i],b[i+1]))
    k.append(b[-1])
else:k.append(b[-1]*2)
print(sum(k))
Buggy code:
n=int(input())
b=[0]+list(map(int,input().split()))+[0]
a=[0]*n
for i in range(n):
  a[i]=min(b[i],b[i+1])
print(sum(a))

Fixed code:
n=int(input())
b=[10**18]+list(map(int,input().split()))+[10**18]
a=[0]*n
for i in range(n):
  a[i]=min(b[i],b[i+1])
print(sum(a))
Buggy code:
N = int(input())
B = list(map(int, input().split()))

B.reverse()
result = [B[0]]
for i, e in enumerate(B):
    if i < len(B) - 1:
        result.append(min(B[i], B[i+1]))
    else:
        result.append(B[i])
print(result, sum(result))

Fixed code:
N = int(input())
B = list(map(int, input().split()))

B.reverse()
result = [B[0]]
for i, e in enumerate(B):
    if i < len(B) - 1:
        result.append(min(B[i], B[i+1]))
    else:
        result.append(B[i])
print(sum(result))
Buggy code:
n = int(input())

b = list(map(int, input().split()))

a[0]=b[0]
a[n-1]=b[n-2]

for i in range(1, n-1):
  if b[i] >= b[i-1]:
    a[i] = b[i-1]
  else:
    a[i] = b[i]

c = 0

for i in range(n):
  c += a[i]
print(c)
  
    
  
  

Fixed code:
n = int(input())

b = list(map(int, input().split()))
a=[0]*n
a[0]=b[0]
a[n-1]=b[n-2]

for i in range(1, n-1):
	if b[i]>=b[i-1]:
		a[i]=b[i-1]
	else:
		a[i]=b[i]
s = 0
for i in range(n):
	s += a[i]
	
print(s)
Buggy code:
n = int(input())
bs = list(map(int, input().split()))

ans = bs[0]
for i in range(1, n-2):
    ans += min(bs[i], bs[i+1])

ans += bs[-1]

print(ans)


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

ans = bs[0]
for i in range(0, n-2):
    ans += min(bs[i], bs[i+1])

ans += bs[-1]

print(ans)
Buggy code:
n = int(input())
b = list(map(int, input().split()))

a = [b[0]]

ta = 0 # temporal a
for i in range(n - 2):
    ta = min(b[i - 1], b[i])
    a.append(ta)
    
ans = sum(a) + b[n - 2]

print(ans)


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

a = [b[0]]

ta = 0 # temporal a
for i in range(n - 2):
    ta = min(b[i], b[i + 1])
    a.append(ta)
    
ans = sum(a) + b[n - 2]

print(ans)
Buggy code:
n = int(input())
b = [int(i) for i in input().split()]
a = [b[0]]
if n == 2:
    print(a[0]*2)
else:
    for i in range(n-2):
        a.append(min(b[i], b[i+1]))
    a.append(b[-1])
print(sum(a))

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

b.append(100010)
a = []
a.append(b[0])

for i in range(1,n):
  a.append(min(b[i], b[i-1])
           
print(sum(a))

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

b.append(100010)
a = 0
a += b[0]

for i in range(1,n):
  a += (min(b[i], b[i-1]))
           
print(a)
Buggy code:
n = int(input())
b = list(map(int,input().split()))

dp = [10**8]*# NOTE:

for i in range(n-1):
    if dp[i] > b[i] :
        dp[i] = b[i]
    if dp[i+1] > b[i] :
        dp[i+1] = b[i]

print(sum(dp))


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

dp = [10**8]*n

for i in range(n-1):
    if dp[i] > b[i] :
        dp[i] = b[i]
    if dp[i+1] > b[i] :
        dp[i+1] = b[i]

print(sum(dp))
Buggy code:
N=int(input())
B=[int(b) for b in input().split()]
A=[int(a) for a in range(N)]



for i in range(N-2):
    if B[i]<=B[i+1]:
        A[i+1]=B[i]
    if B[i]>B[i+1]:
        A[i+1]=B[i+1]
A[0]=B[0]
A[N-1]=B[N-2]

print(sum(A))
print(A)

Fixed code:
N=int(input())
B=[int(b) for b in input().split()]
A=[int(a) for a in range(N)]



for i in range(N-2):
    if B[i]<=B[i+1]:
        A[i+1]=B[i]
    if B[i]>B[i+1]:
        A[i+1]=B[i+1]
A[0]=B[0]
A[N-1]=B[N-2]

print(sum(A))
Buggy code:
a=0
n = int(input())
b = list(map(int, input().split()))

for i in range(n-2):
  if b[i]>b[i+1]:
    a = a + b[i+1]
print(a)

Fixed code:
n = int(input())
b = list(map(int, input().split()))
a_sum = 0

a_sum += b[0]

for i in range(n-2):
    if b[i] >= b[i+1]:
        a_sum += b[i+1]
    if b[i+1] > b[i]:
        a_sum += b[i]

a_sum += b[n-2]
print(a_sum)
Buggy code:
N=int(input())
B=list(map(int,input().split()))

A=[0,]
for i in range(N+1):
  a=min(B[i],B[i-1])
  A.append(a)
  
print(sum(A))

Fixed code:
N=int(input())
B=list(map(int,input().split()))
A=[]
B.insert(0,1000000)
B.append(1000000)
for i in range(1,N+1):
  a=min(B[i],B[i-1])
  A.append(a)
print(sum(A))
Buggy code:
N = int(input())
B =list(map(int,input().split()))
sumN=B[0]
last = 5
for x in range(1,N-2,1):
    sumN += min(B[x],B[x+1])
sumN +=B[-1]
        

Fixed code:
N = int(input())
B =list(map(int,input().split()))
sumN=B[0]
last = 5
for x in range(0,N-2,1):
    sumN += min(B[x],B[x+1])
sumN +=B[-1]
print(sumN)
Buggy code:
N = int(input())
A = [0]*(N)
B = list(map(int, input().split()))
# print("A",A,"B",B)
# print(N)

output=0

for i in range(N):
   print("i",i)
   if (i==0):
      A[i]=B[i]
   elif(i==N-1):
      print("last",B[i-1])
      A[i]=B[i-1]
   else:
      if(B[i-1]<=B[i]):
         A[i]=B[i-1]
      else:
         A[i]=B[i]


# print("A:",A,"B:",B)
print(sum(A))





Fixed code:
N = int(input())
A = [0]*(N)
B = list(map(int, input().split()))
# print("A",A,"B",B)
# print(N)

output=0

for i in range(N):
   # print("i",i)
   if (i==0):
      A[i]=B[i]
   elif(i==N-1):
      # print("last",B[i-1])
      A[i]=B[i-1]
   else:
      if(B[i-1]<=B[i]):
         A[i]=B[i-1]
      else:
         A[i]=B[i]


# print("A:",A,"B:",B)
print(sum(A))
Buggy code:
# -*- coding: utf-8 -*-

N = int(input())
B = [int(i) for i in input().split()] 

max_A =[B[0]]
B.append(B[N-2])

for i in range(N-1):
    max_A.append(min(B[i],B[i+1]))
print(max_A)

print(sum(max_A))

Fixed code:
# -*- coding: utf-8 -*-

N = int(input())
B = [int(i) for i in input().split()] 

max_A =[B[0]]
B.append(B[N-2])

for i in range(N-1):
    max_A.append(min(B[i],B[i+1]))

print(sum(max_A))
Buggy code:
n=int(input())
v=list(map(int,input().split()))
vec=[]
vec.append(v[0])
for i in range(0,n-1):
  vec.append(min(v[i],v[i+1]))
vec.append(v[n-1])
sum=0
for i in range(n+1):
  sum+=vec[i]
print(sum)

Fixed code:
n=int(input())
v=list(map(int,input().split()))
vec=[]
vec.append(v[0])
for i in range(0,n-2):
  vec.append(min(v[i],v[i+1]))
vec.append(v[n-2])
sum=0
for i in range(n):
  sum+=vec[i]
print(sum)
Buggy code:
N = int(input())
B = list(map(int, input().split()))

l = [B[0]]
for i in range(1,N-1):
    print(i)
    l.append(min(B[i-1], B[i]))
l.append(B[-1])

print(sum(l))

Fixed code:
N = int(input())
B = list(map(int, input().split()))

l = [B[0]]
for i in range(1,N-1):
    l.append(min(B[i-1], B[i]))
l.append(B[-1])

print(sum(l))
Buggy code:
N = int(input())
B = list(map(int, input().split()))
k = B[0]+B[-1]
A = [ min(B[i],B[i+1] for i in range (N-2) ]
C = sum(k + A)
print(C)


Fixed code:
N = int(input())
B = list(map(int, input().split()))
k = [B[0]+B[-1]]
A = [ min(B[i],B[i+1]) for i in range(N-2) ]
C = sum(k + A)
print(C)
Buggy code:
N = int(input())
B = list(map(int, input().split()))
k = B[0]
for i in range(1, N-1):
    if B[i] < B[i-1]:
        k += B[i]
    else:
        k += B[i-1]
print(k)


Fixed code:
N = int(input())
B = list(map(int, input().split()))
k = B[0]+B[N-2]
for i in range(1, N-1):
    if B[i] < B[i-1]:
        k += B[i]
    else:
        k += B[i-1]
print(k)
Buggy code:
n=int(input())
b=list(map(int,input().split()))
x=sum(b)+b[0]
y=0
for i in range(0,n-1):
  if b[i]>b[i+1]:
    y+=b[i+1]-b[i]
print(x+y)
  

Fixed code:
n=int(input())
b=list(map(int,input().split()))
x=sum(b)+b[0]
y=0
for i in range(0,n-2):
  if b[i]>b[i+1]:
    y+=(b[i+1]-b[i])
print(x+y)
Buggy code:
import sys
sys.setrecursionlimit(10**8)
input = sys.stdin.readline

N = int(input())
b_arr = list(map(lambda b: int(b), input().split()))
a_arr = list(range(N))

for n in range(N-1, -1, -1):
    if (n == N-1) or (n == N-2):
        a_arr[N-1] = b_arr[N-2]
        a_arr[N-2] = b_arr[N-2]
    elif b_arr[n+1] >= b_arr[n]:
        a_arr[n+1] = b_arr[n]
        a_arr[n] = b_arr[n]
    else:
        a_arr[n] = b_arr[n]

print(sum(a_arr)

Fixed code:
import sys
sys.setrecursionlimit(10**8)
input = sys.stdin.readline

N = int(input())
b_arr = list(map(lambda b: int(b), input().split()))
a_arr = list(range(N))

for n in range(N-1, -1, -1):
    if (n == N-1) or (n == N-2):
        a_arr[N-1] = b_arr[N-2]
        a_arr[N-2] = b_arr[N-2]
    elif b_arr[n+1] >= b_arr[n]:
        a_arr[n+1] = b_arr[n]
        a_arr[n] = b_arr[n]
    else:
        a_arr[n] = b_arr[n]

print(sum(a_arr))
Buggy code:
n=int(input())
b=list(map(int,input().split()))
a=[]
sum=0
for i in range(n-1):
    if b[i] >= a[i] or b[i] >= a[i+1]:
        sum=a[i]+a[i+1]
        print(sum)

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


a = [b[0]]+ b 

for i in range(n-1):
  if a[i]>a[i+1]:
    a[i] = a[i+1]
    
print(sum(a))
Buggy code:
n=int(input())
b=list(map(int,input().split()))
a=[]
a.append(b[0])
for i in range(1,n-1):
    if b[i]<b[i-1]:
        a[i-1]=b[i]
    a.append(b[i])
print(sum(a))

Fixed code:
n=int(input())
b=list(map(int,input().split()))
a=[]
a.append(b[0])
a.append(b[0])
for i in range(1,n-1):
    if b[i]<b[i-1]:
        a[i]=b[i]
    a.append(b[i])
print(sum(a))
Buggy code:
n = int(input())
b = list(map(int, input().split()))

c =[]

c.append(b[0])

for i in range(1,n-1):
	c.append(min(b[i-1], b[i]))

c.append(b[n-2])
print(c)
print(sum(c))

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

c =[]

c.append(b[0])

for i in range(1,n-1):
	c.append(min(b[i-1], b[i]))

c.append(b[n-2])

print(sum(c))
Buggy code:
n = int(input())
lis = list(map(int,input().split()))
ans = lis[0] + lis[-1]
for i in range(n-1):
    ans += min(lis[i],lis[i+1])
print(ans)

Fixed code:
n = int(input())
b = list(map(int, input().split()))
ans = b[0]+b[-1]
for i in range(1, n-1):
  ans += min(b[i-1], b[i])
print(ans)
Buggy code:
N = int(input())
B = list(map(int, input().split()))

A = [0] * N

A[0] = B[0]
A[1] = B[0]

for index in range(N - 2):
    i = index + 1
    print(i)
    if A[i-1] > B[index]:
        A[i-1] = B[index]
    
    A[i + 1] = B[index + 1]

print(sum(A))

Fixed code:
N = int(input())
B = list(map(int, input().split()))

A = [0] * N

A[0] = B[0]
A[1] = B[0]

for index in range(N - 1):
    i = index + 1
    if A[i-1] > B[index]:
        A[i-1] = B[index]
    
    A[i] = B[index]

print(sum(A))
Buggy code:
n = int(input())
a = input().split()

point = 0

if n == 2:
  point = int(a[0])*2
else:
  for i in range(n-1):
    if i == (n-2):
      point += int(a[i])
    else:
      point += min([int(a[i]),int(a[i+1])])

print(point)

Fixed code:
n = int(input())
a = input().split()

point = 0

if n == 2:
  point = int(a[0])*2
else:
  for i in range(n):
    if i == 0:
      point += int(a[0])
    elif i == (n-1):
      point += int(a[i-1])
    else:
      point += min(int(a[i-1]),int(a[i]))
print(point)
Buggy code:
n=int(input())
d=list(map(int,input().split()))
s=[0]*(n-1)

for i in range(1,n-2):
  if d[i]>d[i+1]:
    s[i]+=d[i+1]
  else:
    s[i]+=d[i]
print(d[0]+sum(s)+d[n-2])

Fixed code:
n=int(input())
d=list(map(int,input().split()))
s=d[0]
for i in range(0,n-2):
  if d[i]>d[i+1]:
    d[i]=d[i+1]
print(s+sum(d))
Buggy code:
N = int(input())
B = list(map(int, input().split()))
A = [B[0], B[-1]]
C = [min(B[i],B[i+1]) for i in range(N-2)]
ans = sum(A+C)


Fixed code:
N = int(input())
B = list(map(int, input().split()))
A = [B[0], B[-1]]
C = [min(B[i],B[i+1]) for i in range(N-2)]
ans = sum(A+C)
print(ans)
Buggy code:
N = int(input())

B = list(map(int,input().split()))

ans = 0
tmp_b = 0

tmp_b = 0
for b in B:
    max_a = min(tmp_b,b)
    ans += max_a 
    tmp_b = b

max_a = B[-1]
ans += max_a

print(ans)


Fixed code:
N = int(input())

B = list(map(int,input().split()))

ans = 0
tmp_b = 0

tmp_b = B[0]
for b in B:
    max_a = min(tmp_b,b)
    ans += max_a 
    tmp_b = b

max_a = B[-1]
ans += max_a

print(ans)
Buggy code:
n = int(input())
b = list(map(int, input().split()))
a = [b[0], b[n-1]]
for i in range(n-2):
    a.append(min(b[i:i+2]))
print(sum(a))

Fixed code:
n = int(input())
b = list(map(int, input().split()))
a = [b[0], b[n-2]]
for i in range(n-2):
    a.append(min(b[i:i+2]))
print(sum(a))
Buggy code:
n=int(input())
a=list(map(int,input().split()))
res=a[-1]
for i in range(n-3,-1,-1):
    res+=min(a[i],a[i+1])
print(res)

Fixed code:
n=int(input())
a=list(map(int,input().split()))
res=a[-1]
for i in range(n-3,-1,-1):
    res+=min(a[i],a[i+1])
print(res+a[0])
Buggy code:
N = int(input())
B = list(map(int, input().split()))

A = [B[0], B[0]]

for i in range(2, N-1):
    print(i)
    if B[i-1] > B[i]:
        A.append(B[i])
    else:
        A.append(B[i-1])

if N != 2:
    A.append(B[N-2])
print(sum(A))



Fixed code:
N = int(input())

B = list(map(int,input().split()))

A = []
A.append(B[0])

for i in range(1, N-1):
    if B[i-1]<B[i]:
        A.append(B[i-1])
    else:A.append(B[i])
A.append(B[N-2])

print(sum(A))
Buggy code:
def solve():
  import sys
  import math

  sys.setrecursionlimit(10**7)
  readline=sys.stdin.readline

  n = int(input())
  *b, = map(int, input().split())
  
  a=[b[0]]
  for i in range(1,n-1):
    a+=[min(b[i],b[i-1])]
  if n > 2: a+=[b[-1]]
    
  print(sum(a))


if __name__ == '__main__':
  solve()

Fixed code:
def solve():
  import sys
  import math

  sys.setrecursionlimit(10**7)
  readline=sys.stdin.readline

  n = int(input())
  b = list(map(int, input().split()))
  
  a = b[0]
  for i in range(1,n-1):
    a += min(b[i],b[i-1])
  a += b[-1]

  print(a)


if __name__ == '__main__':
  solve()
Buggy code:
N = int(input())

B = list(map(int,input().split()))

sum_A = min(B[0], B[1])

for i in range(N-1):
    sum_A += min(B[i:N-1])
print(sum_A)

Fixed code:
N=int(input())
B=list(map(int,input().split()))
ans=B[0]+B[-1]
for i in range(1,N-1):
    ans+=min(B[i-1],B[i])
print(ans)