Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Runtime Error):
H, W = map(int, input().split())
field = [[i for i in input()] for j in range(H)]

b_rows = []
for row in range(H):
    if field[row].count(".") != W:
        b_rows.append(row)

b_columns = []
for column in range(W):
    memo = []
    for row in range(H):
        memo.append(field[column][row])
    if memo.count(".") != H:
        b_columns.append(column)

for i in b_rows:
    for j in b_columns:
        print(field[i][j], end="")
    print()

Fixed submission:
H, W = map(int, input().split())
field = [[i for i in input()] for j in range(H)]

b_rows = []
for row in range(H):
    if field[row].count(".") != W:
        b_rows.append(row)

b_columns = []
for column in range(W):
    memo = []
    for row in range(H):
        memo.append(field[row][column])
    if memo.count(".") != H:
        b_columns.append(column)

for i in b_rows:
    for j in b_columns:
        print(field[i][j], end="")
    print()
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
S = list(input())

ans_1 = S[1:].count("E")
ans_2 = N
for i in range(1, N-1):
    count = 0
    for j in range(N):
        if (j < i) and (S[j] == "W"):
            count += 1
        elif (j > i) and (S[j] == "E"):
            count += 1
    if ans_2 > count:
        ans_2 = count
ans_3 = S[:N-1].count("W")

print(min(ans_1, ans_2, ans_3))

Fixed submission:
N = int(input())
S = list(input())

left = [0 for i in range(N)]
right = [0 for i in range(N)]
for i in range(1, N):
    if S[i-1] == "W":
        left[i] = left[i-1] + 1
    else:
        left[i] = left[i-1]
for i in range(N-1):
    if S[(N-1)-i] == "E":
        right[(N-2)-i] = right[(N-1)-i] + 1
    else:
        right[(N-2)-i] = right[(N-1)-i]

ans = left[0] + right[0]
for i in range(1, N):
    count = left[i] + right[i]
    if ans > count:
        ans = count
print(ans)

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

ans_1 = S[1:].count("E")
ans_2 = N
for i in range(N):
    count = S[:i].count("W") + S[i+1:].count("E")
    if ans_2 > count:
        ans_2 = count
ans_3 = S[:N-1].count("W")

print(min(ans_1, ans_2, ans_3))

Fixed submission:
N = int(input())
S = list(input())

left = [0 for i in range(N)]
right = [0 for i in range(N)]
for i in range(1, N):
    if S[i-1] == "W":
        left[i] = left[i-1] + 1
    else:
        left[i] = left[i-1]
for i in range(N-1):
    if S[(N-1)-i] == "E":
        right[(N-2)-i] = right[(N-1)-i] + 1
    else:
        right[(N-2)-i] = right[(N-1)-i]

ans = left[0] + right[0]
for i in range(1, N):
    count = left[i] + right[i]
    if ans > count:
        ans = count
print(ans)

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

ans = float("inf")
for i in range(N):
    if i == 0:
        count = S[1:].count("E")
    elif i < N:
        count = S[:i].count("W") + S[i+1:].count("E")
    else:
        count = S[:N-1].count("W")
    if ans > count:
        ans = count

print(ans)

Fixed submission:
N = int(input())
S = list(input())

left = [0 for i in range(N)]
right = [0 for i in range(N)]
for i in range(1, N):
    if S[i-1] == "W":
        left[i] = left[i-1] + 1
    else:
        left[i] = left[i-1]
for i in range(N-1):
    if S[(N-1)-i] == "E":
        right[(N-2)-i] = right[(N-1)-i] + 1
    else:
        right[(N-2)-i] = right[(N-1)-i]

ans = left[0] + right[0]
for i in range(1, N):
    count = left[i] + right[i]
    if ans > count:
        ans = count
print(ans)
Buggy python submission (verdict: Runtime Error):
A = int(input())
B = int(input())
C = int(input())
X = int(input())

result = 0

for i in range(A+1):
    for j in range(B+1):
        i_j = 500*i + 100*j
        for k in range(C+1):
            if i_j + 50*k == X:
                result += 1

print(result)

Fixed submission:
X = int(input())
A = int(input())
B = int(input())

b = (X - A) // B

print(X-A-B*b)

Buggy python submission (verdict: Runtime Error):
A = int(input())
B = int(input())
C = int(input())
X = int(input())

result = 0

for i in range(A+1):
    for j in range(B+1):
        i_j = 500*i + 100*j
        for k in range(C+1):
            if i_j + 50*k == X:
                result += 1

print(result)

Fixed submission:
X = int(input())
A = int(input())
B = int(input())

b = (X - A) // B

print(X-A-B*b)
Buggy python submission (verdict: Runtime Error):
N = int(input())
plan = [[int(i) for i in input().split()] for j in range(N)]

pre = [0, 0, 0]
match = True
for i in range(N):
    dist = abs(plan[i][1] - pre[1]) + abs(plan[i][2] - pre[2])
    dt = plan[i][0] - pre[0]
    
    if dt < dist:
        can = False
    if dt % 2 != dist % 2:
        can = False
        break
    pre = plan[i]
        
if can:
    print("Yes")
else:
    print("No")

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

arrive = True
pre_spot = [0, 0, 0]
for spot in route:
    cost = abs(spot[1] - pre_spot[1]) + abs(spot[2] - pre_spot[2])
    time = spot[0] - pre_spot[0]
    if (time - cost < 0) or ((time - cost) % 2 != 0):
        arrive = False
        break

if arrive:
    print("Yes")
else:
    print("No")
Buggy python submission (verdict: Runtime Error):
N = input()

if S[0] == S[1] == S[2]:
    print("Yes")
elif S[1] == S[2] == S[3]:
    print("Yes")
else:
    print("No")

Fixed submission:
S = input()

if S[0] == S[1] == S[2]:
    print("Yes")
elif S[1] == S[2] == S[3]:
    print("Yes")
else:
    print("No")
Buggy python submission (verdict: Runtime Error):
def ticket_sum(i, s, num):
    if i == len(S):
        if num == 7:
            print(s+"=7")
            sys.exit()
        else:
            return
    
    # 数字を分ける場所
    pos = i - len(S)
    
    # "+"を入れる場合
    ticket_sum(i+1, s[:pos]+"+"+s[pos:], num+int(s[pos]))
    # "-"を入れる場合
    ticket_sum(i+1, s[:pos]+"-"+s[pos:], num-int(s[pos]))

ticket_sum(1, S, int(S[0]))

Fixed submission:
ticket = [int(i) for i in input()]
sum_list = [[] for i in range(len(ticket))]
sum_list[0] = [ticket[0]]
sign_list = [[] for i in range(len(ticket))]
sign_list[0] = [""]

for i in range(len(ticket)-1):
    for j in range(len(sum_list[i])):
        sum_list[i+1].append(sum_list[i][j] + ticket[i+1])
        sign_list[i+1].append(sign_list[i][j] + "+")
        sum_list[i+1].append(sum_list[i][j] - ticket[i+1])
        sign_list[i+1].append(sign_list[i][j] + "-")

for i in range(2**len(ticket)):
    if sum_list[len(ticket)-1][i] == 7:
        sign = sign_list[len(ticket)-1][i]
        break

for i in range(len(ticket)-1):
    print(str(ticket[i]) + sign[i], end="")
print(str(ticket[-1]) + "=7")

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

def ticket_sum(i, s, num, memo):
    if i == len(S):
        if num == 7:
            memo.append(s+"=7")
            return
        else:
            return
    
    # 数字を分ける場所
    pos = i - len(S)
    
    # "+"を入れる場合
    ticket_sum(i+1, s[:pos]+"+"+s[pos:], num+int(s[pos]), memo)
    # "-"を入れる場合
    ticket_sum(i+1, s[:pos]+"-"+s[pos:], num-int(s[pos]), memo)

    return memo[0]
    
memo = []
print(ticket_sum(1, S, int(S[0]), memo))

Fixed submission:
ticket = [int(i) for i in input()]
sum_list = [[] for i in range(len(ticket))]
sum_list[0] = [ticket[0]]
sign_list = [[] for i in range(len(ticket))]
sign_list[0] = [""]

for i in range(len(ticket)-1):
    for j in range(len(sum_list[i])):
        sum_list[i+1].append(sum_list[i][j] + ticket[i+1])
        sign_list[i+1].append(sign_list[i][j] + "+")
        sum_list[i+1].append(sum_list[i][j] - ticket[i+1])
        sign_list[i+1].append(sign_list[i][j] + "-")

for i in range(2**len(ticket)):
    if sum_list[len(ticket)-1][i] == 7:
        sign = sign_list[len(ticket)-1][i]
        break

for i in range(len(ticket)-1):
    print(str(ticket[i]) + sign[i], end="")
print(str(ticket[-1]) + "=7")
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
A = [int(i) for i in input().split()]

max_count = 0

for X in range(1, 10**5):
    count = 0
    for i in A:
        if X-1 <= i <= X+1:
            count += 1
        if count > max_count:
            max_count = count

print(max_count)

Fixed submission:
N = int(input())
A = [int(i) for i in input().split()]
A_count = [0] * (max(A)+1)

for i in A:
    A_count[i] += 1

max_count = 0
if len(A_count) < 4:
    print(sum(A_count))
else:
    for X in range(1, len(A_count)-1):
        count = A_count[X-1] + A_count[X] + A_count[X+1]
        if count > max_count:
            max_count = count
    print(max_count)
Buggy python submission (verdict: Runtime Error):
N = int(input())
S_dict = {}
for i in range(N):
    s = input()
    if s not in S_dict:
        S_dict[s] = 1
    else:
        S_dict[s] += 1
        
max_poll = max(S_dict.values())
ans_list = []
for key, poll in S_dict.items():
    if poll == max_poll:
        ans_list.append(key)

for ans in sorted(ans_list):
    print(ans)

Fixed submission:
A, B = map(int, input().split())
ans = A + B
if ans < 10:
    print(ans)
else:
    print("error")
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
s = [int(input()) for i in range(N)]

def dfs(i, score):
    global ans
    if i == N:
        if score % 10 != 0:
            ans = max(ans, score)
            
    else:
        dfs(i+1, score)
        dfs(i+1, score+s[i])

ans = 0
dfs(0, 0)
print(ans)

Fixed submission:
import sys
sys.setrecursionlimit(10**6)

N = int(input())
s = sorted([int(input()) for i in range(N)])

correct = False
for n in s:
    if n % 10 != 0:
        correct = True
        break

if correct:
    ans_max = sum(s)
    if ans_max % 10 != 0:
        print(ans_max)
    else:
        for i in s:
            if i % 10 != 0:
                print(ans_max-i)
                break
else:
    print(0)
Buggy python submission (verdict: Runtime Error):
N = int(input())

def power(n):
    if n == 1:
        p = 1
    else:
        p = power(n-1) * n
    
    return p % (10**9 + 7)

print(power(N))

Fixed submission:
N = int(input())

for i in range(1, N+1):
    if i == 1:
        ans = 1
    else:
        ans = ans * i % (10**9 + 7)

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

result = 0

for i in range(K+1):
    for j in range(K+1):
        i_j = i + j
        for k in range(K+1):
            if i_j + k == S:
                result += 1

print(result)

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

result = 0

for i in range(K+1):
    for j in range(K+1):
        if 0 <= S - (i + j) <= K:
            result +=1
print(result)

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

result = 0

for i in range(K+1):
    for j in range(K+1):
        for k in range(K+1):
            if i+j+k == S:
                result += 1

print(result)

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

result = 0

for i in range(K+1):
    for j in range(K+1):
        if 0 <= S - (i + j) <= K:
            result +=1
print(result)
Buggy python submission (verdict: Time Limit Exceeded):
S = input()
texts = ["dream", "dreamer", "erase", "eraser"]
T = [""]
max_count = len(S) // 5 + 1

match = False
count = 0
while count < max_count:
    if S in T:
        match = True
        break
    for i in range(len(T)):
        t = T.pop(0)
        for j in texts:
            T.append(t+j)
    count += 1

if match:
    print("YES")
else:
    print("NO")

Fixed submission:
S = input()
S_rvs = S[::-1]
texts = ["maerd", "remaerd", "esare", "resare"]

match = True
while len(S_rvs) > 0:
    if (S_rvs[0:5] == "maerd") or (S_rvs[0:5] == "esare"):
        S_rvs = S_rvs[5:]
    elif S_rvs[0:6] == "resare":
        S_rvs = S_rvs[6:]
    elif S_rvs[0:7] == "remaerd":
        S_rvs = S_rvs[7:]
    else:
        match = False
        break

if match:
    print("YES")
else:
    print("NO")

Buggy python submission (verdict: Time Limit Exceeded):
S = input()
texts = ["dream", "dreamer", "erase", "eraser"]
T = [""]
max_count = len(S) // 5 + 1

match = False
count = 0
while count < max_count:
    if S in T:
        match = True
        break
    for i in range(len(T)):
        for j in texts:
            T.append(T[i]+j)
    count += 1

if match:
    print("YES")
else:
    print("NO")

Fixed submission:
S = input()
S_rvs = S[::-1]
texts = ["maerd", "remaerd", "esare", "resare"]

match = True
while len(S_rvs) > 0:
    if (S_rvs[0:5] == "maerd") or (S_rvs[0:5] == "esare"):
        S_rvs = S_rvs[5:]
    elif S_rvs[0:6] == "resare":
        S_rvs = S_rvs[6:]
    elif S_rvs[0:7] == "remaerd":
        S_rvs = S_rvs[7:]
    else:
        match = False
        break

if match:
    print("YES")
else:
    print("NO")
Buggy python submission (verdict: Runtime Error):
W, H, N = map(int, input().split())

white = [0, W, 0, H]

points = [[int(i) for i in input().split()] for j in range(N)]

for point in points:
    if point[2] == 1:
        if point[0] > white[0]:
            white[0] = point[0]
    if point[2] == 2:
        if point[0] < white[1]:
            white[1] = point[0]
    if point[2] == 3:
        if point[1] > white[2]:
            white[2] = point[1]
    if point[2] == 4:
        if point[1] < white[3]:
            white[3] = point[1]

w = white[1] - white[0]
h = white[3] - white[2]

if w > 0 and h > 0:
    print(result)
else:
    print(0)

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

white = [0, W, 0, H]

points = [[int(i) for i in input().split()] for j in range(N)]

for point in points:
    if point[2] == 1:
        if point[0] > white[0]:
            white[0] = point[0]
    if point[2] == 2:
        if point[0] < white[1]:
            white[1] = point[0]
    if point[2] == 3:
        if point[1] > white[2]:
            white[2] = point[1]
    if point[2] == 4:
        if point[1] < white[3]:
            white[3] = point[1]

w = white[1] - white[0]
h = white[3] - white[2]

if w > 0 and h > 0:
    print(w * h)
else:
    print(0)
Buggy python submission (verdict: Time Limit Exceeded):
import sys
readline = sys.stdin.buffer.readline

N = int(readline())

total = 0

while N >= 1:
    total += N % 10
    N //= 10
    total %= 9

ans = 'Yes' if total == 0 else 'No'

print(ans)

Fixed submission:
import sys
readline = sys.stdin.buffer.readline

N = int(readline())
ans = 'Yes' if N%9 == 0 else 'No'

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import sys
readline = sys.stdin.buffer.readline

N = int(readline())

total = 0

while N >= 1:
    total += N % 10
    N //= 10

ans = 'Yes' if total % 9 == 0 else 'No'

print(ans)


Fixed submission:
import sys
readline = sys.stdin.buffer.readline

N = int(readline())
ans = 'Yes' if N%9 == 0 else 'No'

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import sys
readline = sys.stdin.buffer.readline

N = int(readline())

digit_total = 0

while N >= 1:
    pop = N % 10
    N //= 10
    digit_total += pop

ans = 'Yes' if digit_total % 9 == 0 else 'No'

print(ans)


Fixed submission:
import sys
readline = sys.stdin.buffer.readline

N = int(readline())
ans = 'Yes' if N%9 == 0 else 'No'

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import sys
readline = sys.stdin.buffer.readline

N = int(readline())

digit_total = 0

while N >= 1:
    pop = N % 10
    N //= 10
    digit_total += pop

ans = 'Yes' if digit_total % 9 == 0 else 'No'

print(ans)


Fixed submission:
import sys
readline = sys.stdin.buffer.readline

N = int(readline())
ans = 'Yes' if N%9 == 0 else 'No'

print(ans)
Buggy python submission (verdict: Runtime Error):
N, M = list(map(int, input().split()))

questions = [False] * N
ac_count = penalty_count = 0
P = []
S = []

for _ in range(M):
    p, s = list(input().split())
    p = int(p) - 1

    P.append(p)
    S.append(s)

    if s == 'AC':
        questions[p] = True

for i in range(M):
    if S[P[i]] == 'WA' and questions[P[i]]:
        penalty_count += 1

print(sum(questions), penalty_count)

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

is_solved = [False] * N
wa_count = [0] * N
wa_total = 0

for _ in range(M):
    p, s = list(input().split())
    p = int(p) - 1

    if s == 'AC':
        if not is_solved[p]:
            is_solved[p] = True
            wa_total += wa_count[p]
    else:
        wa_count[p] += 1

print(sum(is_solved), wa_total)

Buggy python submission (verdict: Runtime Error):
N, M = list(map(int, input().split()))

questions = [False] * N
ac_count = penalty_count = 0
P = []
S = []

for _ in range(M):
    p, s = list(input().split())
    p = int(p) - 1

    P.append(p)
    S.append(s)

    if s == 'AC':
        questions[p] = True

for i in range(M):
    if S[P[i]] == 'WA' and questions[P[i]]:
            penalty_count += 1

print(sum(questions), penalty_count)


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

is_solved = [False] * N
wa_count = [0] * N
wa_total = 0

for _ in range(M):
    p, s = list(input().split())
    p = int(p) - 1

    if s == 'AC':
        if not is_solved[p]:
            is_solved[p] = True
            wa_total += wa_count[p]
    else:
        wa_count[p] += 1

print(sum(is_solved), wa_total)
Buggy python submission (verdict: Time Limit Exceeded):
import sys
readline = sys.stdin.buffer.readline

N, K, Q = list(map(int, readline().split()))
A = []
for a in range(Q):
    A.append(int(readline()))


points = [K] * N

for i in range(Q):

    for j in range(N):
        if A[i] - 1 != j:
            points[j] -= 1

for p in points:
    print("Yes" if p > 0 else "No")

Fixed submission:
import sys
readline = sys.stdin.buffer.readline

N, K, Q = list(map(int, readline().split()))
A = []
for a in range(Q):
    A.append(int(readline()))

points = [0] * N

for i in range(Q):
    points[A[i] - 1] += 1

for p in points:
    score = K - Q + p
    print("Yes" if score > 0 else "No")
Buggy python submission (verdict: Runtime Error):
import sys
readline = sys.stdin.buffer.readline

N = int(readline())
B = list(map(int, readline().split()))

B.append(float('inf'))

mins = [min(B[0])]

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

print(sum(mins))

Fixed submission:
import sys
readline = sys.stdin.buffer.readline

N = int(readline())
B = list(map(int, readline().split()))

B.append(float('inf'))

mins = [B[0]]

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

print(sum(mins))

Buggy python submission (verdict: Runtime Error):
import sys
readline = sys.stdin.buffer.readline

N = int(readline())
B = list(map(int, readline().split()))

B.append(float('inf'))

mins = [min(B[0]]

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

print(sum(mins))

Fixed submission:
import sys
readline = sys.stdin.buffer.readline

N = int(readline())
B = list(map(int, readline().split()))

B.append(float('inf'))

mins = [B[0]]

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

print(sum(mins))
Buggy python submission (verdict: Runtime Error):
N = int(readline())
H = list(map(int, readline().split()))

if N == 1:
    print(0)
    exit()

dp = [0] * N

for i in range(N-2, -1, -1):
    if H[i] >= H[i+1]:
        dp[i] = 1 + dp[i+1]

print(max(dp))

Fixed submission:
import sys
readline = sys.stdin.buffer.readline

N = int(readline())
H = list(map(int, readline().split()))

if N == 1:
    print(0)
    exit()

dp = [0] * N

for i in range(N-2, -1, -1):
    if H[i] >= H[i+1]:
        dp[i] = 1 + dp[i+1]

print(max(dp))
Buggy python submission (verdict: Runtime Error):
L, R = map(int, input().split())

ans = 2019

for i in range(L, R):
    for j in range(i+1, R+1):
        ans = min(ans, (i*j) % 2019)
        if ans == 0:
            print('0')
            exit()

print(ans)

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

print(min(N * A, B))
Buggy python submission (verdict: Runtime Error):
N, M = map(int, input().split())
A = [int(input()) for _ in range(M)]
A = set(A)

mod = 1000000007

dp = [0] * (N + 1)

if len(dp) <= 2:
  return 1

dp[-1] = 1
dp[-2] = 1 if N - 1 not in A else 0

for i in range(N-2, -1, -1):
  if i not in A:
    dp[i] = dp[i+1] + dp[i+2]

print(dp[0] % mod)


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

mod = 1000000007

dp = [0] * (N + 2)
dp[N] = 1  # GOAL

for i in range(N-1, -1, -1):
  if i not in A:
    dp[i] = dp[i+1] + dp[i+2]

print(dp[0] % mod)

Buggy python submission (verdict: Runtime Error):
N, M = map(int, input().split())
A = [int(input()) for _ in range(M)]
A = set(A)

dp = [0] * N

ans = None

if N == 1:
  ans = 1

if N == 2:
  ans = 2 if 1 not in A else 1

if ans:
  print(ans)
  
dp[-1] = 1 if N-1 not in A else 0
dp[-2] = dp[-1] + 1 if N-2 not in A else dp[-1]

for i in range(N-3, -1, -1):
  if i not in A:
    dp[i] = dp[i+1] + dp[i+2]

print(dp[0] % (10 ** 9 + 7))

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

mod = 1000000007

dp = [0] * (N + 2)
dp[N] = 1  # GOAL

for i in range(N-1, -1, -1):
  if i not in A:
    dp[i] = dp[i+1] + dp[i+2]

print(dp[0] % mod)
Buggy python submission (verdict: Runtime Error):
N, M = map(int, input().split())

ds = []
for _ in range(M):
  ds.append(list(map(int, input().split()))[1:])

P = map(int, input().split())

ans = 0

for i in range(2**N):
  switch_states = [(i >> j) & 1 for j in range(N)]
  
  for di, d in enumerate(ds):
    count = 0
    for s in d:
      count += switch_states[s-1]
      if count % 2 == P[di]:
        ans += 1
        
        
print(ans)

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

ds = []
for _ in range(M):
  ds.append(list(map(int, input().split()))[1:])

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

ans = 0

for i in range(2**N):
  switch_states = [(i >> j) & 1 for j in range(N)]
  
  for di, d in enumerate(ds):
    count = 0
    
    for s in d:
      count += switch_states[s-1]
      
    if count % 2 != P[di]:
      ans -= 1
      break

  ans += 1
        
        
print(ans)

Buggy python submission (verdict: Runtime Error):
n, m = map(int, input().split())

ds = []
for _ in range(M):
  ds.append(list(map(int, input().split()))[1:])

P = map(int, input().split())

ans = 0

for i in range(2**N):
  switch_states = [(i >> j) & 1 for j in range(N)]
  
  for di, d in enumerate(ds):
    count = 0
    for s in d:
      count += switch_states[s-1]
      if count % 2 == P[di]:
        ans += 1
        
        
print(ans)

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

ds = []
for _ in range(M):
  ds.append(list(map(int, input().split()))[1:])

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

ans = 0

for i in range(2**N):
  switch_states = [(i >> j) & 1 for j in range(N)]
  
  for di, d in enumerate(ds):
    count = 0
    
    for s in d:
      count += switch_states[s-1]
      
    if count % 2 != P[di]:
      ans -= 1
      break

  ans += 1
        
        
print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
N, M = map(int, input().split())
 
hashset = None
 
for _ in range(M):
  L, R = map(int, input().split())
  if hashset is None:
    hashset = set(range(L, R+1))
  else:
    hashset = hashset & set(range(L, R+1))

print(len(hashset))

Fixed submission:
N, M = map(int, input().split())
 
left, right = 1, N
 
for _ in range(M):
  L, R = map(int, input().split())
  
  left = max(L, left)
  right = min(R, right)

ans = right - left + 1 if left <= right else 0 
print(ans)

Buggy python submission (verdict: Runtime Error):
N, M = map(int, input().split())

hashset = None

for _ in range(M):
	for L, R in map(int, input().split()):
      if hashset is None:
        hashset = set(range(L, R+1))
      else:
        hashset = hashset & set(range(L, R+1))

print(len(hashset))

Fixed submission:
N, M = map(int, input().split())
 
left, right = 1, N
 
for _ in range(M):
  L, R = map(int, input().split())
  
  left = max(L, left)
  right = min(R, right)

ans = right - left + 1 if left <= right else 0 
print(ans)
Buggy python submission (verdict: Runtime Error):
N, K = list(map(int, input().split()))
S = int(input())

S[K-1] = S[K-1].lower()

print(S)

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

S[K-1] = S[K-1].lower()
 
print(''.join(S))