Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Runtime Error):
n, q = map(int, input().split())
S = list(input())

lr = []
for _ in range(q):
    l, r = map(int, input().split())
    lr.append([l, r])

t = [0] * (n+1)
for i in range(n):
    if S[i] == "A" and S[i+1] == "C":
        t[i+1] = t[i] + 1
    else:
        t[i+1] = t[i]

for temp in lr:
    l, r = temp
    print(t[r-1] - t[l-1])

Fixed submission:
n, q = map(int, input().split())
S = list(input())

lr = []
for _ in range(q):
    l, r = map(int, input().split())
    lr.append([l, r])

t = [0] * (n+1)
for i in range(n-1):
    if S[i] == "A" and S[i+1] == "C":
        t[i+1] = t[i] + 1
    else:
        t[i+1] = t[i]

for temp in lr:
    l, r = temp
    print(t[r-1] - t[l-1])

Buggy python submission (verdict: Time Limit Exceeded):
n, q = map(int, input().split())
S = list(input())

lr = []
for _ in range(q):
    l, r = map(int, input().split())
    lr.append([l, r])

for temp in lr:
    l, r = temp
    string = S[l-1:r]

    cnt = 0
    for i in range(len(string)-1):
        if string[i] == "A" and string[i+1] == "C":
            cnt += 1
    print(cnt)

Fixed submission:
n, q = map(int, input().split())
S = list(input())

lr = []
for _ in range(q):
    l, r = map(int, input().split())
    lr.append([l, r])

t = [0] * (n+1)
for i in range(n-1):
    if S[i] == "A" and S[i+1] == "C":
        t[i+1] = t[i] + 1
    else:
        t[i+1] = t[i]

for temp in lr:
    l, r = temp
    print(t[r-1] - t[l-1])
Buggy python submission (verdict: Runtime Error):
from functools import gcd

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

a = A[0]
for i in range(1, n):
    a = gcd(a, A[i])

print(a)


Fixed submission:
from fractions import gcd

n = int(input())
A = [int(i) for i in input().split()]

a = A[0]
for i in range(1,n):
    a=gcd(a, A[i])

print(a)

Buggy python submission (verdict: Runtime Error):
import math
from functools import reduce

_ = int(input())
A = list(map(int, input().split()))

print(reduce(math.gcd, A))

Fixed submission:
from fractions import gcd

n = int(input())
A = [int(i) for i in input().split()]

a = A[0]
for i in range(1,n):
    a=gcd(a, A[i])

print(a)
Buggy python submission (verdict: Time Limit Exceeded):
n, k = map(int, input().split())
height = []
for _ in range(n):
    h = int(input())
    height.append(h)

height.sort()

ans = 10**10
for i in range(n-k+1):
    temp = height[i:i+k]
    if temp[-1] - temp[0] < ans:
        ans = temp[-1] - temp[0]

print(ans)

Fixed submission:
n, k = map(int, input().split())
height = []
for _ in range(n):
    h = int(input())
    height.append(h)

height.sort()

ans = 10**10
for i in range(n-k+1):
    ans = min(ans, height[i+k-1] - height[i])

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
n, k = map(int, input().split())
height = []
for _ in range(n):
    h = int(input())
    height.append(h)

height.sort()

ans = 10**10
for i in range(n-k+1):
    temp = height[i:i+k]
    if temp[-1] - temp[0] < ans:
        ans = temp[-1] - temp[0]

print(ans)

Fixed submission:
n, k = map(int, input().split())
height = []
for _ in range(n):
    h = int(input())
    height.append(h)

height.sort()

ans = 10**10
for i in range(n-k+1):
    ans = min(ans, height[i+k-1] - height[i])

print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
S = list(input())
R = []
G = []
B = []
for i in range(N):
    if S[i] == 'R':
        R.append(i + 1)
    elif S[i] == 'G':
        G.append(i + 1)
    else:
        B.append(i + 1)

ans = 0
for r in R:
    for g in G:
        for b in B:
            if abs(r - g) == abs(r - b):
                pass
            elif abs(r - g) == abs(g - b):
                pass
            elif abs(r - b) == abs(g - b):
                pass
            else:
                ans += 1

print(ans)


Fixed submission:
from sys import stdin

N = int(stdin.readline())
S = list(input())
R = set()
G = set()
B = set()
for i, s in enumerate(S, 1):
    if s == 'R':
        R.add(i)
    elif s == 'G':
        G.add(i)
    else:
        B.add(i)

b = len(B)
ans = 0
for r in R:
    for g in G:
        M = max(r, g)
        m = min(r, g)
        if 2 * m - M in B:
            ans -= 1
        if 2 * M - m in B:
            ans -= 1
        if (M + m) / 2 in B:
            ans -= 1
        ans += b

print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
N, K = map(int, input().split())

flag = 0
if K == 1:
    print(0)
    quit()
if K == 2:
    if N % 2:
        print(1)
        quit()
    else:
        print(0)
        quit()
while True:
    ab = abs(N - K)
    if N > ab:
        N = ab
    else:
        break

print(N)


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

flag = 0
if K == 1:
    print(0)
    quit()
if K == 2:
    if N % 2:
        print(1)
        quit()
    else:
        print(0)
        quit()

i = N // K
N = N - K * i
while True:
    i = N // K
    ab = abs(N - K)
    if N > ab:
        N = ab
    else:
        break

print(N)

Buggy python submission (verdict: Time Limit Exceeded):
N, K = map(int, input().split())

flag = 0
while True:
    ab = abs(N - K)
    if N > ab:
        N = ab
    else:
        break

print(N)


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

flag = 0
if K == 1:
    print(0)
    quit()
if K == 2:
    if N % 2:
        print(1)
        quit()
    else:
        print(0)
        quit()

i = N // K
N = N - K * i
while True:
    i = N // K
    ab = abs(N - K)
    if N > ab:
        N = ab
    else:
        break

print(N)
Buggy python submission (verdict: Time Limit Exceeded):
from sys import stdin

K = int(stdin.readline())

if K < 50000:
    count = 0
    for _ in range(1, 3234566667):
        i = str(_)
        L = len(i)
        for j in range(1, L):
            if abs(ord(i[j]) - ord(i[j - 1])) > 1:
                break
        else:
            count += 1
            if count == K:
                print(_)
                quit()
else:
    count = 100001
    for _ in range(1, 3234566668)[::-1]:
        i = str(_)
        L = len(i)
        for j in range(1, L):
            if abs(ord(i[j]) - ord(i[j - 1])) > 1:
                break
        else:
            count -= 1
            if count == K:
                print(_)
                quit()


Fixed submission:
from sys import stdin
from collections import deque

K = int(stdin.readline())

deque = deque()
for i in range(1, 10):
    deque.append(i)

for i in range(K - 1):
    s = deque.popleft()
    for j in range(-1, 2):
        add = (s % 10) + j
        if 0 <= add <= 9:
            deque.append(s * 10 + add)

print(deque.popleft())

Buggy python submission (verdict: Time Limit Exceeded):
K = int(input())


if K < 10 ** 4 + 4 * 10 ** 3:
    count = 0
    for _ in range(1, 3234566667):
        i = list(map(int, list(str(_))))
        for j in range(1, len(i)):
            if abs(i[j] - i[j - 1]) > 1:
                break
        else:
            count += 1
            if count == K:
                print(_)
                quit()
else:
    count = 100001
    for _ in range(1, 3234566668)[::-1]:
        i = list(map(int, list(str(_))))
        for j in range(1, len(i)):
            if abs(i[j] - i[j - 1]) > 1:
                break
        else:
            count -= 1
            if count == K:
                print(_)
                quit()


Fixed submission:
from sys import stdin
from collections import deque

K = int(stdin.readline())

deque = deque()
for i in range(1, 10):
    deque.append(i)

for i in range(K - 1):
    s = deque.popleft()
    for j in range(-1, 2):
        add = (s % 10) + j
        if 0 <= add <= 9:
            deque.append(s * 10 + add)

print(deque.popleft())

Buggy python submission (verdict: Time Limit Exceeded):
K = int(input())

count = 0
if K < 10 ** 5 + 1:
    for _ in range(1, 3234566667):
        i = list(map(int, list(str(_))))
        for j in range(1, len(i)):
            if abs(i[j] - i[j - 1]) > 1:
                break
        else:
            count += 1
            if count == K:
                print(_)
                quit()


Fixed submission:
from sys import stdin
from collections import deque

K = int(stdin.readline())

deque = deque()
for i in range(1, 10):
    deque.append(i)

for i in range(K - 1):
    s = deque.popleft()
    for j in range(-1, 2):
        add = (s % 10) + j
        if 0 <= add <= 9:
            deque.append(s * 10 + add)

print(deque.popleft())
Buggy python submission (verdict: Time Limit Exceeded):
from scipy.misc import comb
from sys import stdin

N = int(stdin.readline())
count1 = [0] * (N + 1)
count2 = [0] * (N + 1)
A = list(map(int, stdin.readline().split()))

B = list(set(A))

for b in B:
    num_of_b = A.count(b)
    if num_of_b > 2:
        count1[b] = comb(num_of_b, 2, exact=True)
        count2[b] = comb(num_of_b - 1, 2, exact=True)
    elif num_of_b == 2:
        count1[b] = 1


for a in A:
    ans = 0
    ans += sum(count1) - count1[a]
    ans += count2[a]
    print(ans)


Fixed submission:
from sys import stdin

N = int(stdin.readline())
a_dict = {}
A = list(map(int, stdin.readline().split()))
for a in A:
    if a in a_dict:
        a_dict[a] += 1
    else:
        a_dict[a] = 1

sum_comb = 0
B = set(A)
for b in B:
    n = a_dict[b]
    sum_comb += n * (n - 1) // 2

for a in A:
    ans = sum_comb
    n = a_dict[a]
    ans -= n * (n - 1) // 2
    ans += (n - 1) * (n - 2) // 2
    print(ans)

Buggy python submission (verdict: Runtime Error):
from scipy.special import comb
from sys import stdin

N = int(stdin.readline())
count1 = [0] * (N + 1)
count2 = [0] * (N + 1)
A = list(map(int, stdin.readline().split()))

B = list(set(A))

for b in B:
    num_of_b = A.count(b)
    if num_of_b > 2:
        count1[b] = comb(num_of_b, 2, exact=True)
        count2[b] = comb(num_of_b - 1, 2, exact=True)
    elif num_of_b == 2:
        count1[b] = 1


for a in A:
    ans = 0
    ans += sum(count1) - count1[a]
    ans += count2[a]
    print(ans)


Fixed submission:
from sys import stdin

N = int(stdin.readline())
a_dict = {}
A = list(map(int, stdin.readline().split()))
for a in A:
    if a in a_dict:
        a_dict[a] += 1
    else:
        a_dict[a] = 1

sum_comb = 0
B = set(A)
for b in B:
    n = a_dict[b]
    sum_comb += n * (n - 1) // 2

for a in A:
    ans = sum_comb
    n = a_dict[a]
    ans -= n * (n - 1) // 2
    ans += (n - 1) * (n - 2) // 2
    print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
from math import factorial


N = int(input())
count1 = [0] * (N + 1)
count2 = [0] * (N + 1)
A = list(map(int, input().split()))

B = list(set(A))

for b in B:
    num_of_b = A.count(b)
    if num_of_b > 2:
        comb = factorial(
            num_of_b) // (factorial(num_of_b - 2) * factorial(2))
        comb_minus1 = factorial(
            num_of_b - 1) // (factorial(num_of_b - 1 - 2) * factorial(2))
        count1[b] = comb
        count2[b] = comb_minus1
    elif num_of_b == 2:
        count1[b] = 1


for a in A:
    ans = 0
    ans += sum(count1) - count1[a]
    ans += count2[a]
    print(ans)


Fixed submission:
from sys import stdin

N = int(stdin.readline())
a_dict = {}
A = list(map(int, stdin.readline().split()))
for a in A:
    if a in a_dict:
        a_dict[a] += 1
    else:
        a_dict[a] = 1

sum_comb = 0
B = set(A)
for b in B:
    n = a_dict[b]
    sum_comb += n * (n - 1) // 2

for a in A:
    ans = sum_comb
    n = a_dict[a]
    ans -= n * (n - 1) // 2
    ans += (n - 1) * (n - 2) // 2
    print(ans)
Buggy python submission (verdict: Runtime Error):
N, A, B = map(int, input().split())

tmp = N%(A+B)
if 0 <= tmp <= A:
    print(A*(N//(A+B))+tmp)
else:
        print(A*(N//(A+B)))

Fixed submission:
from math import floor, ceil

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

min1 = A/0.08
max1 = (A+0.9999999)/0.08
min2 = B/0.1
max2 = (B+0.9999999)/0.1

rangeMin = ceil(max(min1, min2))
rangeMax = floor(min(max1, max2))
if rangeMin > rangeMax:
    print(-1)
else:
    print(rangeMin)
Buggy python submission (verdict: Time Limit Exceeded):
import sys

N, K = map(int, sys.stdin.readline().split())
p = tuple(map(int, sys.stdin.readline().split()))

max = 0
ite = N - K
base = sum(p[0:K])
max = base
index = 0
for i in range(ite):
    tmp = base + p[i+K] - p[i]
    if tmp > max:
        max = tmp
        index = i+1
    base = tmp

#E = [None]*K
E = [sum(range(1, p[index+i]+1))/p[index+i] for i in range(K)]
"""
for i in range(K):
    E[i] = sum(range(1, p[index+i]+1))/p[index+i]
"""
print(sum(E))

Fixed submission:
import sys

N, K = map(int, sys.stdin.readline().split())
p = tuple(map(int, sys.stdin.readline().split()))

max = 0
ite = N - K
base = sum(p[0:K])
max = base
index = 0
for i in range(ite):
    tmp = base + p[i+K] - p[i]
    if tmp > max:
        max = tmp
        index = i+1
    base = tmp

E = [(1+p[index+i])/2 for i in range(K)]
print(sum(E))

Buggy python submission (verdict: Time Limit Exceeded):
N, K = map(int, input().split())
p = tuple(map(int, input().split()))

max = 0
ite = N - K
base = sum(p[0:K])
max = base
index = 0
for i in range(ite):
    tmp = base + p[i+K] - p[i]
    if tmp > max:
        max = tmp
        index = i+1
    base = tmp

E = [None]*K
for i in range(K):
    E[i] = sum(range(1, p[index+i]+1))/p[index+i]
print(sum(E))

Fixed submission:
import sys

N, K = map(int, sys.stdin.readline().split())
p = tuple(map(int, sys.stdin.readline().split()))

max = 0
ite = N - K
base = sum(p[0:K])
max = base
index = 0
for i in range(ite):
    tmp = base + p[i+K] - p[i]
    if tmp > max:
        max = tmp
        index = i+1
    base = tmp

E = [(1+p[index+i])/2 for i in range(K)]
print(sum(E))

Buggy python submission (verdict: Time Limit Exceeded):
N, K = map(int, input().split())
p = tuple(map(int, input().split()))

max = 0
ite = N - K + 1
max = 0
base = sum(p[0:K])
for i in range(ite):
    S = 0
    for j in range(i, i+K):
        S += p[j]
    if S > max:
        max = S
        index = i

E = [None]*K
for i in range(K):
    E[i] = sum(range(1, p[index+i]+1))/p[index+i]
print(sum(E))

Fixed submission:
import sys

N, K = map(int, sys.stdin.readline().split())
p = tuple(map(int, sys.stdin.readline().split()))

max = 0
ite = N - K
base = sum(p[0:K])
max = base
index = 0
for i in range(ite):
    tmp = base + p[i+K] - p[i]
    if tmp > max:
        max = tmp
        index = i+1
    base = tmp

E = [(1+p[index+i])/2 for i in range(K)]
print(sum(E))

Buggy python submission (verdict: Time Limit Exceeded):
N, K = map(int, input().split())
p = tuple(map(int, input().split()))

E = [None]*N
for i in range(N):
    E[i] = sum(range(1, p[i]+1))/p[i]

max = 0
ite = N - K
for i in range(ite+1):
    tmp = sum(E[i:K+i])
    if tmp > max:
        max = tmp

print(max)

Fixed submission:
import sys

N, K = map(int, sys.stdin.readline().split())
p = tuple(map(int, sys.stdin.readline().split()))

max = 0
ite = N - K
base = sum(p[0:K])
max = base
index = 0
for i in range(ite):
    tmp = base + p[i+K] - p[i]
    if tmp > max:
        max = tmp
        index = i+1
    base = tmp

E = [(1+p[index+i])/2 for i in range(K)]
print(sum(E))
Buggy python submission (verdict: Time Limit Exceeded):
import sys

N = int(sys.stdin.readline())
P = list(map(int, sys.stdin.readline().split()))

count = 0
max = P[0]
for i in range(N):
    if P[i] > max:
        max = P[i]
    else:
        for j in range(i+1):
            if P[i] > P[j]:
                break
        else:
            count += 1
            
print(count)

Fixed submission:
import sys

N = int(sys.stdin.readline())
P = list(map(int, sys.stdin.readline().split()))

count = 0
min = P[0]
for i in range(N):
    if P[i] <= min:
        min = P[i]
        count += 1
    """
    else:
        for j in range(i+1):
            if P[i] > P[j]:
                break
        else:
            count += 1
    """
print(count)

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
P = list(map(int, input().split()))

count = 0
for i in range(N):
    for j in range(0, i+1):
        if P[i] > P[j]:
            break
    else:
        count += 1

print(count)

Fixed submission:
import sys

N = int(sys.stdin.readline())
P = list(map(int, sys.stdin.readline().split()))

count = 0
min = P[0]
for i in range(N):
    if P[i] <= min:
        min = P[i]
        count += 1
    """
    else:
        for j in range(i+1):
            if P[i] > P[j]:
                break
        else:
            count += 1
    """
print(count)

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
P = list(map(int, input().split()))

count = 0
for i in range(N):
    for j in range(0, i+1):
        if P[i] > P[j]:
            break
    else:
        count += 1

print(count)

Fixed submission:
import sys

N = int(sys.stdin.readline())
P = list(map(int, sys.stdin.readline().split()))

count = 0
min = P[0]
for i in range(N):
    if P[i] <= min:
        min = P[i]
        count += 1
    """
    else:
        for j in range(i+1):
            if P[i] > P[j]:
                break
        else:
            count += 1
    """
print(count)
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())

count = 0
for A in range(1, N+1):
    for B in range(A, N+1):
        if str(A)[-1]==str(B)[0] and str(B)[-1]==str(A)[0]:
            count +=1
            if A != B:
                count += 1
print(count)

Fixed submission:
N = int(input())

cnt = [[0]*10 for i in range(10)]
# 先頭がi, 末尾がjであるような数の個数を計算
for n in range(1, N+1):
    n = str(n)
    i = int(n[0])
    j = int(n[-1])
    cnt[i][j] += 1

ans = 0
for i in range(10):
    for j in range(10):
        ans += cnt[i][j]*cnt[j][i]

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())

count = 0
for A in range(1, N+1):
    for B in range(1, N+1):
        if str(A)[-1]==str(B)[0] and str(B)[-1]==str(A)[0]:
            count +=1
print(count)

Fixed submission:
N = int(input())

cnt = [[0]*10 for i in range(10)]
# 先頭がi, 末尾がjであるような数の個数を計算
for n in range(1, N+1):
    n = str(n)
    i = int(n[0])
    j = int(n[-1])
    cnt[i][j] += 1

ans = 0
for i in range(10):
    for j in range(10):
        ans += cnt[i][j]*cnt[j][i]

print(ans)
Buggy python submission (verdict: Runtime Error):
import sys

N, M = map(int, sys.stdin.readline().split())
P = [None]*M
S = [None]*M
for i in range(M):
    P[i], S[i] = sys.stdin.readline().split()

AC = [0]*N
WA = 0
"""
for i in range(M):
    if S[i] == "AC":
        if AC[int(P[i])-1] == 0:
            AC[int(P[i])-1] += 1
            for j in range(i):
                if P[j] == P[i] and S[j] == "WA":
                    WA += 1
"""


for i in range(M):
    if AC[i]==0 and S[i] == "WA":
        WA += 1
    if S[i] == "AC":
        if AC[int(P[i])-1] == 0:
            AC[int(P[i])-1] += 1

print(sum(AC), WA)

Fixed submission:
N, M = map(int, input().split())
P = [None]*M
S = [None]*M
for i in range(M):
    P[i], S[i] = input().split()
    P[i] = int(P[i])

AC = [0]*(N+1)
wa = [0]*(N+1)
WA = 0

for i in range(M):
    if S[i] == "WA":
        if AC[P[i]] == 0:
            wa[P[i]] += 1
    else:
        AC[P[i]] = 1

for i in range(N+1):
    WA += wa[i]*AC[i] 

print(sum(AC[1:]), WA)

Buggy python submission (verdict: Time Limit Exceeded):
import sys

N, M = map(int, sys.stdin.readline().split())
P = [None]*M
S = [None]*M
for i in range(M):
    P[i], S[i] = sys.stdin.readline().split()

AC = [0]*N
WA = 0
for i in range(M):
    if S[i] == "AC":
        if AC[int(P[i])-1] == 0:
            AC[int(P[i])-1] += 1
            for j in range(i):
                if P[j] == P[i] and S[j] == "WA":
                    WA += 1

print(sum(AC), WA)

Fixed submission:
N, M = map(int, input().split())
P = [None]*M
S = [None]*M
for i in range(M):
    P[i], S[i] = input().split()
    P[i] = int(P[i])

AC = [0]*(N+1)
wa = [0]*(N+1)
WA = 0

for i in range(M):
    if S[i] == "WA":
        if AC[P[i]] == 0:
            wa[P[i]] += 1
    else:
        AC[P[i]] = 1

for i in range(N+1):
    WA += wa[i]*AC[i] 

print(sum(AC[1:]), WA)

Buggy python submission (verdict: Time Limit Exceeded):
import sys

N, M = map(int, sys.stdin.readline().split())
P = [None]*M
S = [None]*M
for i in range(M):
    string = sys.stdin.readline().split()
    P[i] = int(string[0])
    S[i] = string[1]


ac = [0]*N
AC = 0
WA = 0
for i in range(M):
    if S[i] == "AC":
        if ac[P[i]-1] == 0:
            ac[P[i]-1] += 1
            for j in range(i):
                if P[j] == P[i] and S[j] == "WA":
                    WA += 1

AC = sum(i > 0 for i in ac)
print(AC, WA)

Fixed submission:
N, M = map(int, input().split())
P = [None]*M
S = [None]*M
for i in range(M):
    P[i], S[i] = input().split()
    P[i] = int(P[i])

AC = [0]*(N+1)
wa = [0]*(N+1)
WA = 0

for i in range(M):
    if S[i] == "WA":
        if AC[P[i]] == 0:
            wa[P[i]] += 1
    else:
        AC[P[i]] = 1

for i in range(N+1):
    WA += wa[i]*AC[i] 

print(sum(AC[1:]), WA)
Buggy python submission (verdict: Runtime Error):
import sys

S, T = map(int, sys.stdin.readline.split())

print(S+T)

Fixed submission:
import sys

S, T = map(str,input().split())

print(T+S)
Buggy python submission (verdict: Time Limit Exceeded):
A, B, K = map(int, input().split())

for i in range(K):
        if A > 0:
                A -= 1
        elif B > 0:
                B -= 1
print(A, B)

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

if K >= A:
        if B >= (K-A):
                B -= (K-A)
                A = 0
        else:
                B = 0
                A = 0
else:
        A -= K
print(A, B)
Buggy python submission (verdict: Runtime Error):
A = input()
B = input()
print(6-A-B)

Fixed submission:
A = int(input())
B = int(input())
print(6-A-B)
Buggy python submission (verdict: Runtime Error):
N = int(input())
a = list(map(int, input().split()))

i = 0
count = 0
while True:
    if i == N-1:
        break
    if a[i] != i+1:
        del a[i]
        N-1
        i -= 1
        count += 1
    i += 1

b = len(a) + 1

if a == list(range(1, b)):
    print(count)
else:
    print(-1)

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

A = []
i = 1
j = 0
while j != N:
    if a[j] == i:
        i += 1
    j += 1
else:
    if i == 1:
        print(-1)
    else:
        print(N-(i-1))
Buggy python submission (verdict: Runtime Error):
import sys
sys.setrecursionlimit(10**15)

N = int(input())

def DoubleFactorial(n):
    if n == 0 or n == 1:
        return 1
    else:
        return n*DoubleFactorial(n-2)

num = float(DoubleFactorial(N))

count = -1
while num.is_integer():
    num /= 10
    count += 1

print(count)

Fixed submission:
from math import factorial

N = int(input())

if N%2 == 0:
    ans = 0
    devisor = 10
    while devisor <= N:
        ans += N//devisor
        devisor *= 5
    print(ans)   
else:
    print(0)

Buggy python submission (verdict: Runtime Error):
import sys
sys.setrecursionlimit(10**7)

N = int(input())

def DoubleFactorial(n):
    if n == 0 or n == 1:
        return 1
    else:
        return n*DoubleFactorial(n-2)

num = float(DoubleFactorial(N))

count = -1
while num.is_integer():
    num /= 10
    count += 1

print(count)

Fixed submission:
from math import factorial

N = int(input())

if N%2 == 0:
    ans = 0
    devisor = 10
    while devisor <= N:
        ans += N//devisor
        devisor *= 5
    print(ans)   
else:
    print(0)