Harryxun/GPT-100-sft-dataset huggingface dataset:
Problem p02725 (python)

Fixed submission:
K,N = map(int,input().split())
A = list(map(int,input().split()))
now = K-A[N-1]+A[0]
for i in range(N-1):
  if A[i+1]-A[i] > now:
    now = A[i+1]-A[i]
print(K-now)

Buggy submission (verdict: Runtime Error):
K,N = map(int,input().split())
now = -10**9
for i in range(N):
  if i == N-1:
    if K-A[N-1]+A[i]>now:
      now = K-A[N-1]+A[i]
  else:
    if A[i+1]-A[i] > now:
      now = A[i+1]-A[i]
print(K-now)
Problem p02859 (python)

Fixed submission:
n = int(input())
print(int(n**2))

Buggy submission (verdict: Runtime Error):
import math
N = int(input())
#距離の箱を作成
kyori = []
kyori2 = []
kyori3 = []
sumation = 0
for i in range(N):
    #N回繰り返す
    kyori.append(list(map(int,input().split())))
#x間の距離、y間の距離を算出
#ここで、2→1と1→2などは同じ距離なので計算しない
x_distance = 0
y_distance = 0
for i in range(0,N):
    for j in range(i+1,N):
        x_distance = (kyori[i][0]-kyori[j][0])**2
        y_distance = (kyori[i][1]-kyori[j][1])**2
        #xとyの距離を計算(sqrt導出)
        Kyorixy = math.sqrt(x_distance + y_distance)
        kyori2.append(Kyorixy)
if len(kyori2) == 1:
    print(kyori2[0])
else:
   goukei = sum(kyori2)*2/N
Problem p02935 (python)

Fixed submission:
import math
N = int(input())
v = list(map(int,input().split()))
v_new = 0
#新しい具材の価値をv_newとした
a = 0
k = []
#kで
p = N
for i in range(N-1):
    #全ての要素が同じ場合は終了する
    if v.count(v[0]) == p:
        break
    else:
       x = min(v)
       v.remove(x)
       #xをvのリストから除外
       y = min(v)
       v_new = (x+y)/2
       #価値を(x+y)/2とした
       v.append(v_new)
       #v_newをvのリストに挿入
       v.remove(y)
       #yをvのリストから除外
       v_new = 0
       #v_newを初期化
       p = p-1
       a = 0
       x = 0
       y = 0
print(v[0])

Buggy submission (verdict: Runtime Error):
import math
N = int(input())
v = list(map(int,input().split()))
v_new = 0
#新しい具材の価値をv_newとした
a = 0
k = []
#kで
p = N
for i in range(N-1):
    #全ての要素が同じ場合は終了する
    if v.count(v[0]) == p:
        break
    else:
       x = v[(math.ceil(len(v)/2))]
       v.remove(x)
       #xをvのリストから除外
       for j in range(len(v)):
           k.append(v[j])
       for j in range(len(k)):
           k[j] = abs(k[j]-x)
       a = k.index(min(k))
       y = v[a]
       k.clear()
       #kのリストを初期化
       v_new = (x+y)/2
       #価値を(x+y)/2とした
       v.append(v_new)
       #v_newをvのリストに挿入
       v.remove(y)
       #yをvのリストから除外
       v_new = 0
       #v_newを初期化
       p = p-1
       a = 0
       x = 0
       y = 0
print(v[0])

Buggy submission (verdict: Runtime Error):
import math
N = int(input())
v = list(map(int,input().split()))
s = v
v_new = 0
a = 0
k = []
p = N
for i in range(N-1):
    if v.count(v[0]) == p:
        break
    else:
       x = v[(math.ceil(len(v)/2))]
       v.remove(x)
       for j in range(len(v)):
           k.append(v[j])
       for j in range(len(k)):
           k[j] = abs(k[j]-x)
       a = k.index(min(k))
       y = v[a]
       v_new = (x+y)/2
       v.append(v_new)
       v.remove(y)
       v_new = 0
       p = p-1
print(v[0])
Problem p02987 (python)

Fixed submission:
#ABC132 = 2*2*3*11
S = input()
A = []
for i in range(len(S)):
    A.append(S[i])
if S[0] == S[1] and S[2] == S[3] or S[0] == S[2] and S[1] == S[3] or S[0] == S[3] and S[1] == S[2]:
    if A.count(S[0]) == 4:
        print("No")
    else:
        print("Yes")
else:
    print("No")

Buggy submission (verdict: Runtime Error):
n = int(input())
d = sorted(list(map(int,input().split())))
print(d[n//2]-d[n//2-1])
Problem p03041 (python)

Fixed submission:
N,K = map(int,input().split())
S = list(input())
ans = ""
if S[K-1] == "A":
  S[K-1] = "a"
if S[K-1] == "B":
  S[K-1] = "b"
if S[K-1] == "C":
  S[K-1] = "c"
for n in S:
    ans += n
print(ans)

Buggy submission (verdict: Runtime Error):
from collections import deque
N = int(input())
g = [[] for i in range(N)]
for i in range(N-1):
  u,v,w = map(int,input().split())
  u -= 1
  v -= 1
  g[u].append([v,w])
  g[v].append([u,w])
q = deque([])
ans = [-1] * N
q.append(0)
ans[0] = 0
while len(q) > 0:
  e = q.popleft()
  for i in g[e]:
    if ans[i[0]] > -1:
      continue
    ans[i[0]] += i[1]
    ans[i[0]] = ans[i[0]] % 2
    q.append(i[0])
for i in range(len(ans)):
  if ans[i]%2 == 1:
    print(1)
    continue
  print(0)
Problem p03127 (python)

Fixed submission:
import math
N = int(input())
A = list(map(int,input().split()))
now = A[0]
for i in range(1,N):
    now = math.gcd(A[i],now)
print(now)

Buggy submission (verdict: Runtime Error):
N = int(input())
A = list(map(int,input().split()))
now = A[0]
for i in range(1,N):
    now = math.gcd(A[i],now)
print(now)
Problem p03307 (python)

Fixed submission:
N = int(input())
if N%2 == 0:
    print(N)
else:
    print(2*N)

Buggy submission (verdict: Runtime Error):
N = int(input())
if N%2 = 0:
  print(N)
else:
  print(2*N)
Problem p03315 (python)

Fixed submission:
S = input()
ans = 0
for i in range(4):
  if S[i] == "+":
    ans +=1
  else:
    ans -=1
print(ans)

Buggy submission (verdict: Runtime Error):
S = str(input())

m = S.count("+")
n = S.conut("-")

print(m-n)
Problem p03834 (python)

Fixed submission:
s = input()
k = []
ans = ""
for i in range(19):
  k.append(s[i])
for i in range(19):
  if k[i] == ",":
    k[i] = " "
  ans += k[i]
print(ans)

Buggy submission (verdict: Runtime Error):
s = input()
s[5] = " "
s[:5] = " "
print(s)
Problem p02711 (python)

Fixed submission:
N = input()
if '7' in str(N):
    print('Yes')
else:
    print('No')

Buggy submission (verdict: Runtime Error):
k = input()
if k[0] == k[1] or k[1] ==k[2] or k[2]==k[0] in str(N):
    print("Yes")
else:
    print("No")

Buggy submission (verdict: Runtime Error):
k = input()
if k[0] == k[1] or k[1] ==k[2] or k[2]==k[3]:
    print("Yes")
else:
    print("No")

Buggy submission (verdict: Runtime Error):
k = input()
if k[0] == k[1] or k[1] ==k[2] or k[2]==k[3]:
    print("Yes")
else:
    print("No")
Problem p02723 (python)

Fixed submission:
s = input()
if s[2] == s[3] and s[4] == s[5]:
	print('Yes')
else:
	print('No')

Buggy submission (verdict: Runtime Error):
N = str(input("Enter something:"))
    if N[3] == N[4] and N[5] == N[6]:
        print("yes")
    else:
        print("No")

Buggy submission (verdict: Runtime Error):
print yes or no"""
N = str(input("Enter something:"))
for str in N:
    if N[3] == N[4] and N[5] == N[6]:
        print("yes")
    else:
        print("No")

Buggy submission (verdict: Runtime Error):
if s[2]==s[3] and s[4]==s[5]:
    print('Yes')
else:
    print('No')

Buggy submission (verdict: Runtime Error):
"""print yes or no"""
N = str(input("Enter something:"))
for str in N:
    if N[3] == N[4] and N[5] == N[6]:
        print("yes")
    else:
        print("No")
Problem p02859 (python)

Fixed submission:
print(int(input())**2)

Buggy submission (verdict: Runtime Error):
N=int(input())
S=input()
print('YNeos'[S[:N//2]!=S[-N//2:]::2])
Problem p02688 (python)

Fixed submission:
s = []
n, k = map(int, input().split())
for i in range(n):
    s.append(0)
for i in range(k):
    m = int(input())
    na = list(map(int, input().split()))
    for j in na:
        s[j - 1] = 1
         
print(s.count(0))

Buggy submission (verdict: Runtime Error):
s = []
n, k = map(int, input().split())
for i in range(n):
	s.append(0)
for i in range(k):
	m = int(input())
    na = list(map(int, input().split())
    for j in na:
    	s[j - 1] = 1
         
print(s.count(0))

Buggy submission (verdict: Runtime Error):
s = []
n, k = map(int, input().split())
for i in range(n):
  s.append(0)
for i in range(k):
	m = int(input())
    na = list(map(int, input().split())
    for j in na:
    	s[j - 1] = 1
         
print(s.count(0))
Problem p02933 (python)

Fixed submission:
a = int(input())
s = input()
 
if a >= 3200:
  print(s)
else:
  print('red')

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

if >= 3200:
  print(s)
else:
  print('red')
Problem p03075 (python)

Fixed submission:
x = []
for i in range(5):
        x.append(int(input()))
k = int(input())
a = x[0]
n = True
for i in x:
        b = abs(a-i)
        if b > k:
                n = False
        else:
                None
if not n:
        print(":(")
else:
        print("Yay!")

Buggy submission (verdict: Runtime Error):
x,y,z,k = map(int,input().split())
A,B,C= [[int(i) for i in input().split()] for j in range(3)]
AB = []
ABC = []
for i in range(x):
        for j in range(y):
                AB.append(A[i]+B[j])
AB.sort(reverse = True)
for i in range(min(k,len(AB))):
        for j in range(z):
                ABC.append(AB[i]+C[j])
ABC.sort(reverse = True)
for i in range(k):
        print(ABC[i])
Problem p03327 (python)

Fixed submission:
N = int(input())
if N<1000:
    print("ABC")
else:
    print("ABD")

Buggy submission (verdict: Runtime Error):
a, b = [int(i) for i in input().split()]
c = b-a
d = 0
for j in range(c):
    d+=j
d-=a
print(d)

Buggy submission (verdict: Runtime Error):
N = input()
if N<1000:
    print("ABC")
else:
    print("ABD")
Problem p02571 (python)

Fixed submission:
s=input()
t=input()

ans=10**9+7
for i in range(len(s)-len(t)+1):
    miss=0
    tmp=s[i:i+len(t)]
    for j in range(len(t)):
        if tmp[j]!=t[j]:
            miss+=1
    ans=min(ans, miss)

print(ans)

Buggy submission (verdict: Runtime Error):
s=input()
t=input()

for i in range(len(s)-len(t)):
    ans=10**9+7
    miss=0
    tmp=s[i:i+len(t)]
    for j in range(len(t)):
        if tmp[j]!=t[j]:
            miss+=1
    ans=min(ans, miss)

print(ans)
Problem p02624 (python)

Fixed submission:
import numpy as np
from numba import jit

@jit
def solve():
    
    n = int(input())
    
    divisors = np.zeros(n+1, np.int64)
    
    for i in range(1, n+1):
        for j in range(i, n+1, i):
            divisors[j] += 1
    #print(divisors)
    
    ans = 0
    for k in range(n+1):
        ans += (k * divisors[k])
    
    print(ans)

solve()

Buggy submission (verdict: Runtime Error):
import numpy as np

def solve():
    
    n = int(input())
    
    divisors = np.zeros(n+1, np.int64)
    
    for i in range(1, n+1):
        for j in range(i, n+1, i):
            divisors[j] += 1
    #print(divisors)
    
    ans = 0
    for k in range(n+1):
        ans += (k * divisors[k])
    
    print(ans)

solve()

Buggy submission (verdict: Runtime Error):
import numpy as np
from numba import njit

@njit
def solve():
    
    n = int(input())
    
    divisors = np.zeros(n+1, np.int64)
    
    for i in range(1, n+1):
        for j in range(i, n+1, i):
            divisors[j] += 1
    #print(divisors)
    
    ans = 0
    for k in range(n+1):
        ans += (k * divisors[k])
    
    print(ans)

solve()

Buggy submission (verdict: Runtime Error):
import numpy as np
from numba import jit

@njit
def solve():
    
    n = int(input())
    
    divisors = np.zeros(n+1, np.int64)
    
    for i in range(1, n+1):
        for j in range(i, n+1, i):
            divisors[j] += 1
    #print(divisors)
    
    ans = 0
    for k in range(n+1):
        ans += (k * divisors[k])
    
    print(ans)

solve()

Buggy submission (verdict: Runtime Error):
import numpy as np

def solve():
    
    n = int(input())
    
    divisors = np.zeros(n+1, np.int64)
    
    for i in range(1, n+1):
        for j in range(i, n+1, i):
            divisors[j] += 1
    #print(divisors)
    
    ans = 0
    for k in range(n+1):
        ans += (k * divisors[k])
    
    print(ans)

from numba import jit

@jit
solve()
Problem p02879 (python)

Fixed submission:
a,b= map(int,input().split())


if a<=9 and b<=9:
    print(a*b)
else:
    print(-1)

Buggy submission (verdict: Runtime Error):
if a<=9 and b<=9:
    print(a*b)
else:
    print(-1)
Problem p02881 (python)

Fixed submission:
n = int(input())
divisors =[]
for i in range(1,int(n**0.5)+1):
    if n%i == 0:
        divisors.append(i)
gojyu=[]
for j in divisors:
    kyori = j + n/j - 2
    gojyu.append(int(kyori))
print(min(gojyu))

Buggy submission (verdict: Runtime Error):
n = int(input())

divisors =[]
for i in range(1,int(n/2)+1):
    if n%i == 0:
        divisors.append(i)
divisors.append(n)
print(divisors)
x=len(divisors)
print(x)
gojyu=[]
for j in range(x-1):
    for k in range(x-1):
        if divisors[j]*divisors[k] == n:
            gojyu.append(divisors[j]+divisors[k]-2)
print(min(gojyu))

Buggy submission (verdict: Runtime Error):
n = int(input())

divisors =[]
for i in range(1,n+1):
    if n%i == 0:
        divisors.append(i)
x=len(divisors)

gojyu=[]
for j in range(x-1):
    for k in range(x-1):
        if divisors[j]*divisors[k] == n:
            gojyu.append(divisors[j]+divisors[k]-2)
print(min(gojyu))
Problem p02959 (python)

Fixed submission:
#

n=int(input())
a=list(map(int,input().split()))
b=list(map(int,input().split()))
#b.append(0)
b.append(0)
z = 0
c = b[0]
for i in range(n+1):
    x = a[i] - c
    #print(z)
    if i < n:
        if x <= 0:
            z += a[i]
            #print(a[i])
            if -x >= a[i+1]:
                c = b[i+1] + a[i+1]
            elif -x < a[i+1]:
                c = b[i+1] - x
        elif x > 0:
            z += c
            #print(c)
            c = b[i+1]
    elif i == n:
        if x <= 0:
            z += a[i]
            #print(a[i])
        else:
            z += c
            #print(c)
print(z)

Buggy submission (verdict: Runtime Error):
#

n=int(input())
a=list(map(int,input().split()))
b=list(map(int,input().split()))
b.append(0)
b.append(0)
z = 0
c = b[0]
for i in range(n+1):
    x = a[i] - c
    #print(z)
    if x <= 0:
        z += a[i]
        #print(a[i])
        if -x >= a[i+1]:
            c = b[i+1] + a[i+1]
        elif -x < a[i+1]:
            c = b[i+1] - x
    elif x > 0:
        z += c
        #print(c)
        c = b[i+1]

print(z)
Problem p03286 (python)

Fixed submission:
def f_10_to_m2(n):
    if n == 0:
        return 0 

    digits = []
    i = 0
    base = 1
    while n != 0:
        if n % (base*2) == 0:
            digits.append(0)
        else:
            digits.append(1)
            n -= base
        i += 1
        base *= -2
    return ''.join(map(str, reversed(digits)))

print(f_10_to_m2(int(input())))

Buggy submission (verdict: Runtime Error):
n =int(input())

if n ==0:
    print(0)
    exit()

l = [(-2)**_ for _ in range(100) if abs((-2)**_) <= 10**10]

if n > 0:
    x = [1]
    for i in range(len(l)):
        if abs(l[i]) < abs(n):
            x.append(l[i+1])

elif n < 0:
    x = []
    for j in range(len(l)):
        if abs(l[j]) < abs(n):
            x.append(l[j])

#print(len(x))

y = []
from itertools import combinations
for __ in range(len(x)):
    y += list(combinations(x, __))

for k in y:
    if sum(k) == n:
        z = list(k)

#print(y)
#print(z)

p = []
for q in range(len(x)):
    if x[q] in z:
        p.append(str(1))
    else:
        p.append(str(0))

p.reverse()
print(''.join(p))

Buggy submission (verdict: Runtime Error):
n =int(input())

if n ==0:
    print(0)
    exit()

l = [(-2)**_ for _ in range(100) if abs((-2)**_) <= 10**10]

if n > 0:
    x = [1]
    for i in range(len(l)):
        if abs(l[i]) < abs(n):
            x.append(l[i+1])

elif n < 0:
    x = []
    for j in range(len(l)):
        if abs(l[j]) < abs(n):
            x.append(l[j])

#print(len(x))

y = []
from itertools import combinations
for __ in range(len(x)):
    y += list(combinations(x, __))

for k in y:
    if sum(k) == n:
        z = list(k)

#print(y)
#print(z)

p = []
for q in range(len(x)):
    if x[q] in z:
        p.append(1)
    else:
        p.append(0)

p.reverse()
print(p)
Problem p03774 (python)

Fixed submission:
n,m = map(int,input().split())
N = [list(map(int, input().split())) for _ in range(n)]
M = [list(map(int, input().split())) for _ in range(m)]

def kyori(X,Y):
    return abs(X[0]-Y[0])+abs(X[1]-Y[1])

def near_p(hito):
    temp = []
    for _ in range(m):
        temp.append(kyori(hito,M[_]))
    return temp.index(min(temp))+1

for i in range(n):
    print(near_p(N[i]))

Buggy submission (verdict: Runtime Error):
n,m = map(int,input().split())
N = [list(map(int, input().split())) for _ in range(n)]
M = [list(map(int, input().split())) for _ in range(m)]

def kyori(X,Y):
    return abs(X[0]-Y[0])+abs(X[1]-Y[1])

def near_p(hito):
    temp = []
    for _ in range(n):
        temp.append(kyori(hito,M[_]))
    return temp.index(min(temp))+1

for i in range(n):
    print(near_p(N[i]))
Problem p02580 (python)

Fixed submission:
H,W,M=map(int,input().split())
bombh=[]
bombw=[]
bomb=[]
w=[0]*W
h=[0]*H
for i in range(M):
    hs,ws=map(int,input().split())
    w[ws-1]+=1
    h[hs-1]+=1
    bomb.append([hs-1,ws-1])
maxh=max(h)
maxw=max(w)
ans=maxh+maxw
count=0
for i in range(M):
    if ans==h[bomb[i][0]]+w[bomb[i][1]]:
        count+=1
a=h.count(maxh)*w.count(maxw)
if a==count:
    ans-=1
print(ans)

Buggy submission (verdict: Runtime Error):
H,W,M=map(int,input().split())
bombh=[]
bombw=[]
bomb=[[0]*W for _ in range(H)]
w=[0]*W
h=[0]*H
for i in range(M):
    hs,ws=map(int,input().split())
    w[ws-1]+=1
    h[hs-1]+=1
    bomb[hs-1][ws-1]=1
for i in range(H):
    bombh.append([h[i],i])
for i in range(W):
    bombw.append([w[i],i])
bombh.sort(reverse=True)
bombw.sort(reverse=True)
maxh=bombh[0][0]
maxw=bombw[0][0]
ans=maxh+maxw-1
for i in range(H):
    if maxh!=bombh[i][0]:
        break
    a=bombh[i][1]
    for j in range(W):
        if maxw!=bombw[j][0]:
            break
        b=bombw[j][1]
        if bomb[a][b]==0:
            ans+=1
            break
    if bomb[a][b]==0:
        break
print(ans)
Problem p02629 (python)

Fixed submission:
import string
a=string.ascii_lowercase
N=int(input())
ans=[]
count=1
n=26
s=0
while N>n:
    count+=1
    s=n
    n+=26**count
N-=s+1
for i in range(count):
    n=N//26
    m=N%26
    ans.append(a[m])
    N=n
Ans=[]
for i in range(len(ans)):
    Ans.append(ans[len(ans)-i-1])
print("".join(Ans))

Buggy submission (verdict: Runtime Error):
import string
a=string.ascii_lowercase
N=int(input())
ans=[]
count=1
n=26
while N>n:
    count+=1
    s=n
    n+=26**count
if N>26**count:
    for i in range(count):
        n=N//26**(count-i-1)
        if i!=count-1:
            m=N%26**(count-i-1)
        if n>=276:
            ans.append(a[25])
            N-=26**(count-i)
        else:
            ans.append(a[m-1])
else:
    while N>0:
        n=N//26
        m=N%26
        ans.append(a[m-1])
        N=n
Ans=[]
for i in range(len(ans)):
    Ans.append(ans[len(ans)-i-1])
print("".join(Ans))
Problem p02792 (python)

Fixed submission:
N=int(input())
ans=0
c=[[0 for _ in range(10)] for _ in range(10)]

for n in range(1,N+1):
    i=n%10
    j=n
    while 10<=j:
        j=j//10
    c[i][j]=c[i][j]+1

for i in range(10):
    for j in range(10):
        ans=ans+c[i][j]*c[j][i]
print(ans)

Buggy submission (verdict: Runtime Error):
N=int(input())
ans=0
c=[[0 for _ in range(10)] for _ in range(10)]

for n in range(1,N+1):
    i=n%10
    j=n
    while 10<=k:
        j=j//10
    c[i][j]=c[i][j]+1

for i in range(10):
    for j in range(10):
        ans=ans+c[i][j]*c[j][i]
print(ans)
Problem p02793 (python)

Fixed submission:
import fractions
N=int(input())
A=list(map(int,input().split()))
MOD=10**9+7
ans=1
gcd=A[0]
for i in range(1,N):
    a=A[i]
    b=fractions.gcd(a,gcd)
    temp=gcd
    gcd=temp*a//b
    ans=ans*(a//b)+temp//b
    ans%=MOD
print(ans)

Buggy submission (verdict: Runtime Error):
import math
N=int(input())
A=list(map(int,input().split()))
MOD=10**9+7
ans=1
gcd=A[0]
for i in range(1,N):
    a=A[i]
    b=math.gcd(a,gcd)
    temp=gcd
    gcd=temp*a//b
    ans=ans*(a//b)+temp//b
    ans%=MOD
print(ans)
Problem p02933 (python)

Fixed submission:
a=int(input())
s=input()
if(a>=3200):
    print(s)
else:
    print("red")

Buggy submission (verdict: Runtime Error):
import sys
sys.setrecursionlimit(10 ** 6)
def input():
    return sys.stdin.readline()[:-1]

N,Q=map(int,input().split())
graph=[[]for _ in range(N)]
point=[0]*N
for _ in range(N-1):
    a,b=map(int,input().split())
    graph[a-1].append(b-1)
    graph[b-1].append(a-1)
for _ in range(Q):
    a,b=map(int,input().split())
    a=a-1
    point[a]=point[a]+b

def dfs(now,prev=-1):
    for next in graph[now]:
        if next==prev:
            continue
        point[next]=point[next]+point[now]
        dfs(next,now)
dfs(0)
print(*point)
Problem p03013 (python)

Fixed submission:
N,M=map(int,input().split())
A=[]
B=[]
a=[]
a.append(0)
x=0
d=1
A.append(1)
A.append(2)
B.append(1)
B.append(1)
for j in range(2,N):
    A.append(A[j-1]+A[j-2])
    B.append(B[j-1]+B[j-2])
for i in range(1,M+1):
    a.append(int(input()))
    if a[i-1]==0:
        if a[i]==1:
            d=1
        else:
            x=A[a[i]-a[i-1]-2]
            d=d*x%(10**9+7)
    else:
        x=B[a[i]-a[i-1]-2]
        d=d*x%(10**9+7)
    if i>1:
        if a[i]-a[i-1]==1:
            d=0
c=N-a[M]
if c==1:
    print(d)
elif c==N:
    x=A[c-1]
    d=d*x%(10**9+7)
    print(d)
else:
    x=A[N-a[M]-2]
    d=d*x%(10**9+7)
    print(d)

Buggy submission (verdict: Runtime Error):
N,M=map(int,input().split())
A=[]
B=[]
a=[]
a.append(0)
x=0
d=1
A.append(1)
A.append(2)
B.append(1)
B.append(1)
for j in range(2,N):
    A.append(A[j-1]+A[j-2])
    B.append(B[j-1]+B[j-2])
for i in range(1,M+1):
    a.append(int(input()))
    if a[i-1]==0:
        if a[i]==1:
            d=1
        else:
            x=A[a[i]-a[i-1]-2]
            d=d*x%(10**9+7)
    else:
        x=B[a[i]-a[i-1]-2]
        d=d*x%(10**9+7)
    if i>1:
        if a[i]-a[i-1]==1:
            d=0
            break
c=N-a[M]
if c==1:
    print(d)
else:
    x=A[N-a[M]-2]
    d=d*x%(10**9+7)
    print(d)

Buggy submission (verdict: Runtime Error):
N,M=map(int,input().split())
A=[]
a=[]
a.append(0)
x=0
d=1
A.append(1)
A.append(2)
for j in range(2,N):
    A.append(A[j-1]+A[j-2])
for i in range(1,M+1):
    a.append(int(input()))
    x=A[a[i]-a[i-1]-2]
    d=d*x
    if i>1:
        if a[i]-a[i-1]==1:
            d=0
x=A[N-a[M]-2]
d=d*x
print(A[21],A[11])
print(d%(10**9+7))