Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
a = list(map(int, input().split()))

cnt = 0
dist = [a[0]-1] + a[1:]
for i, ai in enumerate(a[1:]):
    cnt += dist[:i+1].count(-ai)
    dist[:i+2] = list(map(lambda x: x-1, dist[:i+2]))

print(cnt)


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

# i < j
# j - i = Aj + Ai
# j - Aj = i + Ai

ans = 0
adds = dict()
for j in range(n):
    sub = j - a[j]
    if sub in adds.keys():
        ans += adds[sub]

    add = j + a[j]
    if add in adds.keys():
        adds[add] += 1
    else:
        adds[add] = 1

print(ans)

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

cnt = 0
dist = [a[0]-1] + a[1:]
for i, ai in enumerate(a[1:]):
    cnt += dist[:i+1].count(-ai)
    dist[:i+2] = list(map(lambda x: x-1, dist[:i+2]))

print(cnt)


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

# i < j
# j - i = Aj + Ai
# j - Aj = i + Ai

ans = 0
adds = dict()
for j in range(n):
    sub = j - a[j]
    if sub in adds.keys():
        ans += adds[sub]

    add = j + a[j]
    if add in adds.keys():
        adds[add] += 1
    else:
        adds[add] = 1

print(ans)

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

cnt = 0
dist = [a[0]-1]
for ai in a[1:]:
    cnt += dist.count(-ai)
    dist.append(ai)
    dist = list(map(lambda x: x-1, dist))

print(cnt)

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

# i < j
# j - i = Aj + Ai
# j - Aj = i + Ai

ans = 0
adds = dict()
for j in range(n):
    sub = j - a[j]
    if sub in adds.keys():
        ans += adds[sub]

    add = j + a[j]
    if add in adds.keys():
        adds[add] += 1
    else:
        adds[add] = 1

print(ans)

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

cnt = 0
dist = [a[0]-1]
for ai in a[1:]:
    cnt += dist.count(-ai)
    dist.append(ai)
    dist = list(map(lambda x: x-1, dist))

print(cnt)


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

# i < j
# j - i = Aj + Ai
# j - Aj = i + Ai

ans = 0
adds = dict()
for j in range(n):
    sub = j - a[j]
    if sub in adds.keys():
        ans += adds[sub]

    add = j + a[j]
    if add in adds.keys():
        adds[add] += 1
    else:
        adds[add] = 1

print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
a = list(map(int, input().split()))
a = list(map(lambda x: x - 1, a))

for i in range(n):
    print(a.count(i))

Fixed submission:
n = int(input())
a = list(map(int, input().split()))
a = list(map(lambda x: x - 1, a))

cnts = [0 for _ in range(n)]
for ai in a:
    cnts[ai] += 1

for cnt in cnts:
    print(cnt)
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
s = input()

def get_rest(si, sj):
    for c in ['R', 'G', 'B']:
        if not c in [si, sj]: return c

cnt = 0
for i in range(n):
    for j in range(i+1, n):
        if s[j] == s[i]: continue
        rest = get_rest(s[i], s[j])
        cnt += s[j+1:].count(rest)
        if j+(j-i) >= n: continue
        if s[j+(j-i)] == rest: cnt -= 1
print(cnt)

Fixed submission:
n = int(input())
s = input()

colors = ['R', 'B', 'G']

cnt = 1
for c in colors:
    cnt *= s.count(c)

for i in range(n):
    w = 1
    while True:
        if i + 2*w >= n: break
        if s[i] != s[i+w] and s[i+w] != s[i+2*w] and s[i+2*w] != s[i]:
            cnt -= 1
        w += 1
print(cnt)

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

def get_rest(si, sj):
    for c in ['R', 'G', 'B']:
        if not c in [si, sj]: return c

cnt = 0
for i in range(n):
    for j in range(i+1, n):
        if s[j] == s[i]: continue
        rest = get_rest(s[i], s[j])
        cnt += s[j+1:].count(rest)
        if j+(j-i) >= n: continue
        if s[j+(j-i)] == rest: cnt -= 1
print(cnt)

Fixed submission:
n = int(input())
s = input()

colors = ['R', 'B', 'G']

cnt = 1
for c in colors:
    cnt *= s.count(c)

for i in range(n):
    w = 1
    while True:
        if i + 2*w >= n: break
        if s[i] != s[i+w] and s[i+w] != s[i+2*w] and s[i+2*w] != s[i]:
            cnt -= 1
        w += 1
print(cnt)

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

cnt = 0
for i in range(n):
    for j in range(i+1, n):
        if s[j] == s[i]: continue
        for k in range(j+1, n):
            if s[k] in [s[j], s[i]]: continue
            if j - i == k - j: continue
            cnt += 1
print(cnt)

Fixed submission:
n = int(input())
s = input()

colors = ['R', 'B', 'G']

cnt = 1
for c in colors:
    cnt *= s.count(c)

for i in range(n):
    w = 1
    while True:
        if i + 2*w >= n: break
        if s[i] != s[i+w] and s[i+w] != s[i+2*w] and s[i+2*w] != s[i]:
            cnt -= 1
        w += 1
print(cnt)

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

cnt = 0
for i in range(n):
    for j in range(i+1, n):
        if s[j] == s[i]: continue
        for k in range(j+1, n):
            if s[k] in [s[j], s[i]]: continue
            if j - i == k - j: continue
            cnt += 1
print(cnt)

Fixed submission:
n = int(input())
s = input()

colors = ['R', 'B', 'G']

cnt = 1
for c in colors:
    cnt *= s.count(c)

for i in range(n):
    w = 1
    while True:
        if i + 2*w >= n: break
        if s[i] != s[i+w] and s[i+w] != s[i+2*w] and s[i+2*w] != s[i]:
            cnt -= 1
        w += 1
print(cnt)
Buggy python submission (verdict: Time Limit Exceeded):
import sys

k = int(input())

q = [i for i in range(1, 10)]
if k <= 9:
    print(q[k-1])
    sys.exit()

cnt = 0
while True:
    if cnt == k:
        print(x)
        break
    x = q.pop(0)
    m = x % 10
    if m == 0:
        q.extend([10*x + m, 10*x + (m+1)])
    elif m == 9:
        q.extend([10*x + (m-1), 10*x + m])
    else:
        q.extend([10*x + (m-1), 10*x + m, 10*x + (m+1)])
    cnt += 1

Fixed submission:
from collections import deque
import sys

k = int(input())

q = deque([i for i in range(1, 10)])
if k <= 9:
    print(q[k-1])
    sys.exit()

cnt = 0
while True:
    if cnt == k:
        print(x)
        break
    x = q.popleft()
    m = x % 10
    if m == 0:
        q.extend([10*x + m, 10*x + (m+1)])
    elif m == 9:
        q.extend([10*x + (m-1), 10*x + m])
    else:
        q.extend([10*x + (m-1), 10*x + m, 10*x + (m+1)])
    cnt += 1
Buggy python submission (verdict: Time Limit Exceeded):
n, x, y = map(int, input().split())
x, y = x-1, y-1


def update(dist, queue, d, x):
    if dist[x] >= 0: return dist, queue
    dist[x] = d+1
    queue.append(x)
    return dist, queue

ans = [0 for _ in range(n)]
for i in range(n):
    dist = [-1 for _ in range(n)]
    dist[i] = 0
    queue = [i]
    while True:
        if len(queue) == 0: break
        now = queue.pop(0)
        d = dist[now]
        if now-1 >= 0:
            dist, queue = update(dist, queue, d, now-1)
        if now+1 < n:
            dist, queue = update(dist, queue, d, now+1)
        if now == x:
            dist, queue = update(dist, queue, d, y)
        if now == y:
            dist, queue = update(dist, queue, d, x)
    for d in dist:
        ans[d] += 1

for a in ans[1:]:
    print(a//2)

Fixed submission:
n, x, y = map(int, input().split())
x, y = x-1, y-1


def update(dist, queue, d, x):
    if dist[x] >= 0: return dist, queue
    dist[x] = d+1
    queue.append(x)
    return dist, queue

ans = [0 for _ in range(n)]
for i in range(n):
    dist = [-1 for _ in range(n)]
    dist[i] = 0
    queue = [i]
    while True:
        if len(queue) == 0: break
        now = queue.pop(0)
        d = dist[now]
        if now-1 >= 0:
            dist, queue = update(dist, queue, d, now-1)
        if now+1 < n:
            dist, queue = update(dist, queue, d, now+1)
        if now == x:
            dist, queue = update(dist, queue, d, y)
        if now == y:
            dist, queue = update(dist, queue, d, x)
    for d in dist:
        ans[d] += 1

for a in ans[1:]:
    print(a//2)
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
A = list(map(int, input().split()))

is_distinct = False
for i in range(n):
  for j in range(i+1, n):
    if A[i] == A[j]:
      is_distinct = True
      break

if is_distinct:
  print('NO')
else:
  print('YES')

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

if len(set(A)) == len(A):
  print('YES')
else:
  print('NO')
Buggy python submission (verdict: Time Limit Exceeded):
n, k = map(int, input().split())
ps = list(map(lambda n: (int(n)+1)/2, input().split()))

mx = 0
for i in range(n - (k-1)):
  sm = sum(ps[i:i+k])
  if sm > mx:
    mx = sm
print(mx)

Fixed submission:
n, k = map(int, input().split())
ps = list(map(lambda n: (int(n)+1)/2, input().split()))

mx = sum(ps[:k])
sm = sum(ps[:k])
for i in range(k, n):
  sm += ps[i] - ps[i-k]
  if sm > mx:
    mx = sm
print(mx)

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

ps = list(map(lambda n: (n+1)/2, ps))

mx = 0
for i in range(n - (k-1)):
  sm = sum(ps[i:i+k])
  if sm > mx:
    mx = sm
print(mx)

Fixed submission:
n, k = map(int, input().split())
ps = list(map(lambda n: (int(n)+1)/2, input().split()))

mx = sum(ps[:k])
sm = sum(ps[:k])
for i in range(k, n):
  sm += ps[i] - ps[i-k]
  if sm > mx:
    mx = sm
print(mx)
Buggy python submission (verdict: Runtime Error):
import numpy as np
n = int(input())
rs = [list(map(int, input().split())) for _ in range(n)]
rs = np.array(rs)
mn_mx = np.stack([rs[:, 0] - rs[:, 1], rs[:, 0] + rs[:, 1]], axis=1)
mn_mx = mn_mx[np.argsort(mn_mx[:, 1])]

cnt = 0
reach = None
for mn, mx in mn_mx:
    if reach is not None and mn < reach:
        continue
    reach = mx
    cnt += 1
print(cnt)

Fixed submission:
n = int(input())
rs = [list(map(int, input().split())) for _ in range(n)]
lr = [[x-l, x+l] for x, l in rs]
lr.sort(key=lambda x: x[1])

cnt = 0
reach = None
for l, r in lr:
    if reach is not None and l < reach:
        continue
    reach = r
    cnt += 1
print(cnt)
Buggy python submission (verdict: Runtime Error):
import numpy as np

n, m = [int(i) for i in input().split()]
ans = [input().split() for _ in range(m)]
ans = np.array(ans)

ps = ans[:, 0]
ss = ans[:, 1]
sub_ps = np.unique(ps)

cnt_c, cnt_w = 0, 0
for sp in sub_ps:
  indices = np.where(ps==sp)[0]
  s_sp = ss[indices]
  if np.all(s_sp == 'WA'):
    continue
  num_ws = np.where(s_sp == 'AC')[0][0]
  cnt_w += num_ws
  cnt_c += 1

print(cnt_c, cnt_w)

Fixed submission:
n, m = [int(i) for i in input().split()]
ans = [input().split() for _ in range(m)]

is_ac = [0 for i in range(n)]
cnt_wa = [0 for i in range(n)]
for p, s in ans:
  p = int(p) - 1
  if is_ac[p]:
    continue
  if s == 'AC':
    is_ac[p] = 1
  else:
    cnt_wa[p] += 1

cor = sum(is_ac)
pena = 0
for p, c in enumerate(is_ac):
  if c:
    pena += cnt_wa[p]

print(cor, pena)

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

n, m = [int(i) for i in input().split()]
ans = [input().split() for _ in range(m)]
ans = np.array(ans)

ps = ans[:, 0]
ss = ans[:, 1]
sub_ps = np.unique(ps)

cnt_c, cnt_w = 0, 0
for sp in sub_ps:
  indices = np.where(ps==sp)[0]
  s_sp = ss[indices]
  if np.all(s_sp == 'WA'):
    continue
  num_ws = np.where(s_sp == 'AC')[0][0]
  cnt_w += num_ws
  cnt_c += 1

print(cnt_c, cnt_w)

Fixed submission:
n, m = [int(i) for i in input().split()]
ans = [input().split() for _ in range(m)]

is_ac = [0 for i in range(n)]
cnt_wa = [0 for i in range(n)]
for p, s in ans:
  p = int(p) - 1
  if is_ac[p]:
    continue
  if s == 'AC':
    is_ac[p] = 1
  else:
    cnt_wa[p] += 1

cor = sum(is_ac)
pena = 0
for p, c in enumerate(is_ac):
  if c:
    pena += cnt_wa[p]

print(cor, pena)

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np

n, m = [int(i) for i in input().split()]
to_i = dict(AC=1, WA=0)
ps = list()
ss = list()
for i in range(m):
  p, s = input().split()
  ps.append(int(p))
  ss.append(to_i[s])
ps = np.array(ps)
ss = np.array(ss)

sub_ps = np.unique(ps)

cnt_c, cnt_w = 0, 0
for sp in sub_ps:
  indices = np.where(ps==sp)[0]
  s_sp = ss[indices]
  if s_sp.sum() == 0:
    continue
  num_ws = np.where(s_sp == 1)[0][0]
  cnt_w += num_ws
  cnt_c += 1

print(cnt_c, cnt_w)

Fixed submission:
n, m = [int(i) for i in input().split()]
ans = [input().split() for _ in range(m)]

is_ac = [0 for i in range(n)]
cnt_wa = [0 for i in range(n)]
for p, s in ans:
  p = int(p) - 1
  if is_ac[p]:
    continue
  if s == 'AC':
    is_ac[p] = 1
  else:
    cnt_wa[p] += 1

cor = sum(is_ac)
pena = 0
for p, c in enumerate(is_ac):
  if c:
    pena += cnt_wa[p]

print(cor, pena)
Buggy python submission (verdict: Runtime Error):
python src/train.py --dataset cifar10 --comet --ct 0.5 --at 0.5

Fixed submission:
a = int(input())
b = int(input())

ans = [1, 2, 3]
ans.remove(a)
ans.remove(b)

print(ans[0])
Buggy python submission (verdict: Runtime Error):
a = int(input())
b = int(input())

ans = [1, 2, 3]
ans.remove(a)
ans.remove(b)

print(ans[0])

Fixed submission:
n = int(input())
S, T = [str(a) for a in input().split()]

ans = ''
for s, t in zip(S, T):
    ans += s
    ans += t

print(ans)
Buggy python submission (verdict: Runtime Error):
a, b = [int(i) for i in input().split()]

def gcd(a,b):
    while b!=0:
    a,b=b,a%b
    return a

def lcm(a,b):
    return a*b//gcd(a,b)

print(lcm(a, b))

Fixed submission:
a, b = [int(i) for i in input().split()]

def gcd(a,b):
    while b!=0:
        a,b=b,a%b
    return a

def lcm(a,b):
    return a*b//gcd(a,b)

print(lcm(a, b))

Buggy python submission (verdict: Runtime Error):
import math

a, b = [int(i) for i in input().split()]

print(a * b // math.gcd(a, b))

Fixed submission:
a, b = [int(i) for i in input().split()]

def gcd(a,b):
    while b!=0:
        a,b=b,a%b
    return a

def lcm(a,b):
    return a*b//gcd(a,b)

print(lcm(a, b))

Buggy python submission (verdict: Runtime Error):
import math

a, b = [int(i) for i in input().split()]

print(math.gcd(a, b))

Fixed submission:
a, b = [int(i) for i in input().split()]

def gcd(a,b):
    while b!=0:
        a,b=b,a%b
    return a

def lcm(a,b):
    return a*b//gcd(a,b)

print(lcm(a, b))
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
A = [int(a) for a in input().split()]

is_over = False
count = 0
for i in range(1, n+1):
    # print('i:', i)
    while True:
        # print('    A:', A)
        # print('    count:', count)
        if len(A) == 0:
            is_over = True
            break
        if A[0] == i:
            A = A[1:]
            break
        else:
            A.pop(0)
            count += 1
    if is_over:
        break

if n == count:
    print(-1)
else:
    print(count)

Fixed submission:
n = int(input())
A = [int(a) for a in input().split()]

is_over = False
now = 0

for a in A:
    if a == now+1:
        now += 1

if now == 0:
    print(-1)
else:
    print(n - now)
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
A = [int(i) for i in input().split()]

level_count = dict()
for a in A:
    bin_a = bin(a)
    for i in range(len(bin_a[2:])):
        if int(bin_a[-i-1]) == 1:
            try:
                level_count[i] += 1
            except:
                level_count[i] = 1

sum_ = 0
for level, count in level_count.items():
    sum_ += 2**level * count * (N - count)
print(sum_ % (10**9 + 7))


Fixed submission:
N = int(input())
A = [int(i) for i in input().split()]

# level_count = dict()
# for a in A:
#     bin_a = bin(a)
#     for i in range(len(bin_a[2:])):
#         if int(bin_a[-i-1]) == 1:
#             try:
#                 level_count[i] += 1
#             except:
#                 level_count[i] = 1
# 
# sum_ = 0
# for level, count in level_count.items():
#     sum_ += 2**level * count * (N - count)
# print(sum_ % (10**9 + 7))

import numpy as np

A = np.array(A)
sum_ = 0
for i in range(len(bin(np.max(A))) - 2):
    count = np.count_nonzero(A & 1)
    sum_ += 2**i * count * (N - count)
    A >>= 1
print(sum_ % (10**9 + 7))

Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
A = [int(i) for i in input().split()]

sum_ = 0

for i in range(N):
    for j in range(i+1, N):
        sum_ += A[i] ^ A[j]

print(sum_ % (10**9 + 7))


Fixed submission:
N = int(input())
A = [int(i) for i in input().split()]

# level_count = dict()
# for a in A:
#     bin_a = bin(a)
#     for i in range(len(bin_a[2:])):
#         if int(bin_a[-i-1]) == 1:
#             try:
#                 level_count[i] += 1
#             except:
#                 level_count[i] = 1
# 
# sum_ = 0
# for level, count in level_count.items():
#     sum_ += 2**level * count * (N - count)
# print(sum_ % (10**9 + 7))

import numpy as np

A = np.array(A)
sum_ = 0
for i in range(len(bin(np.max(A))) - 2):
    count = np.count_nonzero(A & 1)
    sum_ += 2**i * count * (N - count)
    A >>= 1
print(sum_ % (10**9 + 7))
Buggy python submission (verdict: Runtime Error):
N = int(input())
print(n**3)


Fixed submission:
N = int(input())
print(N**3)
Buggy python submission (verdict: Runtime Error):
N = int(input())
A = [int(i) for i in input().split()]
B = [int(i) for i in input().split()]
C = [int(i) for i in input().split()]

counter = 0
for i in range(N):
    counter += B[i]
    if i != 0 and A[i] - 1 == A[i-1]:
        counter += C[i]
print(counter)


Fixed submission:
N = int(input())
A = [int(i) for i in input().split()]
B = [int(i) for i in input().split()]
C = [int(i) for i in input().split()]

counter = 0
for i in range(N):
    # print(i)
    num = A[i] - 1
    counter += B[num]
    # print('Add:', B[num])
    if i != 0 and num - 1 == A[i-1] - 1:
        counter += C[num-1]
        # print('Add:', C[num-1])
    # print('')
print(counter)
Buggy python submission (verdict: Runtime Error):
N = int(input())
print(int((N * (N-1)) / 2))

Fixed submission:
S = input()
T = input()

count = 0
for i in range(3):
    if S[i] == T[i]:
        count += 1
print(count)

Buggy python submission (verdict: Runtime Error):
N = int(input())
print(int(N * (N-1) // 2))

Fixed submission:
S = input()
T = input()

count = 0
for i in range(3):
    if S[i] == T[i]:
        count += 1
print(count)
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())

Q = [i for i in range(1, N+1)]
P = sum(Q) - Q[-1]
print(P)


Fixed submission:
N = int(input())
print(int(N * (N-1) // 2))
Buggy python submission (verdict: Runtime Error):
n = int(input())
A = [int(i) for i in input().split()]
A.insert(0, 0)

balls = list()
sums = dict()
# for i, a in enumerate(reversed(A)):
for bn in range(n, 0, -1):
    a = A[bn]
    if 2*bn > n:
        sums[bn] = a
        if a == 1:
            balls.append(str(bn))
    else:
        a2_sum = sums[2*bn]
        if a2_sum % 2 == a:
            # not
            sums[bn] = a2_sum
        else:
            # in
            sums[bn] = a2_sum + 1
            balls.append(str(bn))

all_balls = len(balls)
if all_balls % 2 != A[1]:
    print(-1)
else:
    print(all_balls)
    print(' '.join(balls))


Fixed submission:
r = int(input())
print(3*r**2)
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
a = []
for _ in range(n):
    a.append(int(input()))

sa = sorted(a)
for i in range(n):
    val = a[i]
    idx = sa.index(val)
    sa.pop(idx)
    print(sa[-1])
    sa.insert(idx, val)


Fixed submission:
n = int(input())
a = []
for _ in range(n):
    a.append(int(input()))

sa = sorted(a)
mx = sa[-1]
for val in a:
    if val != mx:
        print(sa[-1])
    else:
        print(sa[-2])

Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
a = []
for _ in range(n):
    a.append(int(input()))

for i in range(n):
    val = a.pop(i)
    sa = sorted(a)
    print(sa[-1])
    a.insert(i, val)

Fixed submission:
n = int(input())
a = []
for _ in range(n):
    a.append(int(input()))

sa = sorted(a)
mx = sa[-1]
for val in a:
    if val != mx:
        print(sa[-1])
    else:
        print(sa[-2])
Buggy python submission (verdict: Runtime Error):
n = int(input())
A = [int(i) for i in input().split()]
A.insert(0, 0)

balls = list()
sums = dict()
# for i, a in enumerate(reversed(A)):
for bn in range(n, 0, -1):
    a = A[bn]
    if 2*bn > n:
        sums[bn] = a
        if a == 1:
            balls.append(str(bn))
    else:
        a2_sum = sums[2*bn]
        if a2_sum % 2 == a:
            # not
            sums[bn] = a2_sum
        else:
            # in
            sums[bn] = a2_sum + 1
            balls.append(str(bn))

# all_balls = len(balls)
# if all_balls % 2 != A[0]:
#     print(-1)
# else:
#     print(all_balls)
#     print(' '.join(balls))
print(all_balls)
print(' '.join(balls))


Fixed submission:
n = int(input())
A = [int(i) for i in input().split()]
A.insert(0, 0)

boxes = dict()
have_balls = list()
for bn in range(n, 0, -1):
    a = A[bn]
    s = 0
    for t in range(2, n+1):
        if bn * t > n:
            break
        s += boxes[bn*t]

    if s % 2 == a:
        boxes[bn] = 0
    else:
        boxes[bn] = 1
        have_balls.append(str(bn))

print(len(have_balls))
print(' '.join(have_balls))
Buggy python submission (verdict: Runtime Error):
l, r = [int(i) for i in input().split()]

base = 2019
l_mod = l % base
r_mod = r % base

print(l_mod * (l_mod + 1))


Fixed submission:
n = int(input())
A = [int(a) for a in input().split()]

x = 0
rains = [x]
for a in A:
    x = a - x
    rains.append(x)

diff = (rains[-1] - rains[0]) // 2
result = []
for i, x in enumerate(rains[:-1]):
    if i % 2 == 0:
        result.append(str((x + diff) * 2))
    else:
        result.append(str((x - diff) * 2))

print(' '.join(result))
Buggy python submission (verdict: Time Limit Exceeded):
n, k = [int(i) for i in input().split()]

# Create the pascal triangle
pascal = [[0 for i in range(j+1)] for j in range(4001)]
pascal[0][0] = 1
for i in range(4000):
    for j in range(i+1):
        pascal[i+1][j] += pascal[i][j]
        pascal[i+1][j+1] += pascal[i][j]


class Mod(object):
    def __init__(self, base):
        self.base = base
        self.x = 0

    def add(self, y):
        self.x += y % self.base
        self.x %= self.base

    def sub(self, y):
        self.x -= y % self.base
        self.x %= self.base

    def mul(self, y):
        self.x *= y % self.base
        self.x %= self.base


def comb(x, y):
    if x <= 0 or y < 0 or x < y:
        return 0
    return pascal[x][y]


def f2(x, y):
    return comb(x+y-1, y-1)


def f(x, y):
    return f2(x-y, y)


if __name__ == "__main__":
    BASE = int(1e+9 + 7)
    for i in range(1, k+1):
        count = Mod(BASE)
        count.add(f(k, i) * f(n-k, i-1))
        count.add(f(k, i) * f(n-k, i))
        count.add(f(k, i) * f(n-k, i))
        count.add(f(k, i) * f(n-k, i+1))
        print(count.x)

Fixed submission:
n, k = [int(i) for i in input().split()]

# Create the pascal triangle
pascal = [[0 for i in range(j+1)] for j in range(2001)]
pascal[0][0] = 1
for i in range(2000):
    for j in range(i+1):
        pascal[i+1][j] += pascal[i][j]
        pascal[i+1][j+1] += pascal[i][j]


class Mod(object):
    def __init__(self, base):
        self.base = base
        self.x = 0

    def add(self, y):
        self.x += y % self.base
        self.x %= self.base

    def sub(self, y):
        self.x -= y % self.base
        self.x %= self.base

    def mul(self, y):
        self.x *= y % self.base
        self.x %= self.base


def comb(x, y):
    if x < y or (x == 0 and y != 0) or y < 0:
        return 0
    return pascal[x][y]


def f2(x, y):
    return comb(x+y-1, y-1)


def f(x, y):
    if x == 0 and y == 0:
        return 1
    return f2(x-y, y)


if __name__ == "__main__":
    BASE = int(1e+9 + 7)
    for i in range(1, k+1):
        count = Mod(BASE)
        count.add(f(k, i) * f(n-k, i-1))
        count.add(f(k, i) * f(n-k, i))
        count.add(f(k, i) * f(n-k, i))
        count.add(f(k, i) * f(n-k, i+1))
        print(count.x)