Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Runtime Error):
import itertools
import collections
N = int(input())
A = [int(_) for _ in input().split()]
c = sorted(collections.Counter(A).values())
acc = list(itertools.accumulate([0] + c))
n = len(acc) - 1
j = 0
for i in range(1, N + 1):
    r = 0
    if j < n - 1:
        while i - j > 0:
            if (i - j) * c[-1 - j] <= acc[-1 - j]:
                r = acc[-1 - j] // (i - j)
                break
            else:
                j += 1
    print(r)


Fixed submission:
import itertools
import collections
N = int(input())
A = [int(_) for _ in input().split()]
c = sorted(collections.Counter(A).values())
acc = list(itertools.accumulate([0] + c))
n = len(acc) - 1
j = 0
for i in range(1, n + 1):
    r = 0
    while i - j > 0:
        if (i - j) * c[-1 - j] <= acc[-1 - j]:
            r = acc[-1 - j] // (i - j)
            break
        else:
            j += 1
    print(r)
for _ in range(N - n):
    print(0)

Buggy python submission (verdict: Runtime Error):
import itertools
import collections
N = int(input())
A = [int(_) for _ in input().split()]
c = sorted(collections.Counter(A).values())
acc = list(itertools.accumulate([0] + c))
n = len(acc) - 1
j = 0
for i in range(1, N + 1):
    r = 0
    while i - j > 0:
        if (i - j) * c[-1 - j] <= acc[-1 - j]:
            r = acc[-1 - j] // (i - j)
            break
        else:
            j += 1
    print(r)


Fixed submission:
import itertools
import collections
N = int(input())
A = [int(_) for _ in input().split()]
c = sorted(collections.Counter(A).values())
acc = list(itertools.accumulate([0] + c))
n = len(acc) - 1
j = 0
for i in range(1, n + 1):
    r = 0
    while i - j > 0:
        if (i - j) * c[-1 - j] <= acc[-1 - j]:
            r = acc[-1 - j] // (i - j)
            break
        else:
            j += 1
    print(r)
for _ in range(N - n):
    print(0)

Buggy python submission (verdict: Time Limit Exceeded):
import itertools
import collections
N = int(input())
A = [int(_) for _ in input().split()]
c = sorted(collections.Counter(A).values())
acc = list(itertools.accumulate([0] + c))
n = len(acc) - 1
for i in range(1, n + 1):
    r = 0
    j = 0
    while i - j > 0:
        if (i - j) * c[-1 - j] <= acc[-1 - j]:
            r = acc[-1 - j] // (i - j)
            break
        else:
            j += 1
    print(r)
for _ in range(N - n):
    print(0)


Fixed submission:
import itertools
import collections
N = int(input())
A = [int(_) for _ in input().split()]
c = sorted(collections.Counter(A).values())
acc = list(itertools.accumulate([0] + c))
n = len(acc) - 1
j = 0
for i in range(1, n + 1):
    r = 0
    while i - j > 0:
        if (i - j) * c[-1 - j] <= acc[-1 - j]:
            r = acc[-1 - j] // (i - j)
            break
        else:
            j += 1
    print(r)
for _ in range(N - n):
    print(0)
Buggy python submission (verdict: Runtime Error):
#dp[i][j]:S[i-x:i]==S[j-x:j]となる最大のx
import numpy as np

def solve(NS):
    N = NS[0]
    S = NS[1:]
    dp=np.zeros((N+1,N+1),dtype=int)
    for i in range(N - 1):
        for j in range(i + 1, N):
            dp[i][j] = min(j - i, dp[i - 1][j - 1] + 1) if S[i] == S[j] else 0
    return dp.max()

def main():
    NS = np.array([int(input())] + [ord(_) for _ in input()])
    print(solve(NS))

def cc_export():
    from numba.pycc import CC
    cc = CC('my_module')
    cc.export('solve', 'i8(i8[:])')(solve)
    cc.compile()

if __name__ == '__main__':
    import sys
    if sys.argv[-1] == 'ONLINE_JUDGE':
        cc_export()
        exit(0)
    from my_module import solve
    main()


Fixed submission:
S = input()
if S == 'Sunny':
    print('Cloudy')
elif S == 'Cloudy':
    print('Rainy')
else:
    print('Sunny')
Buggy python submission (verdict: Runtime Error):
import sys
import numpy as np


def main(stdin):
    N, K, Q = stdin[:3]
    ans = np.full(N + 1, K - Q, dtype=np.int64)
    for i in stdin[3:]:
        ans[i] += 1
    ans = np.where(ans > 0, 'Yes', 'No')
    return ans[1:]


if sys.argv[-1] == 'ONLINE_JUDGE':
    import numba
    from numba.pycc import CC
    cc = CC('my_module')
    cc.export('main', 'i8[:](i8[:],)')(main)
    # b1: bool, i4: int32, i8: int64, double: f8, [:], [:, :]
    cc.compile()
else:
    from my_module import main
    stdin = np.array([int(_) for _ in open(0).read().split()])
    print(*main(stdin), sep='\n')


Fixed submission:
N, K, Q = [int(_) for _ in input().split()]
A = [int(input()) for _ in range(Q)]
s = [K - Q] * (N + 1)
for a in A:
    s[a] += 1
for i in range(1, N + 1):
    if s[i] > 0:
        print('Yes')
    else:
        print('No')

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


def main(stdin):
    N, K, Q = stdin[:3]
    ans = np.full(N + 1, K - Q, dtype=np.int64)
    for i in stdin[3:]:
        ans[i] += 1
    ans = np.where(ans > 0, 'Yes', 'No')
    return ans[1:]


if sys.argv[-1] == 'ONLINE_JUDGE':
    import numba
    from numba.pycc import CC
    cc = CC('my_module')
    cc.export('main', '(i8[:],)')(main)
    # b1: bool, i4: int32, i8: int64, double: f8, [:], [:, :]
    cc.compile()
else:
    from my_module import main
    stdin = np.array([int(_) for _ in open(0).read().split()])
    print(*main(stdin), sep='\n')


Fixed submission:
N, K, Q = [int(_) for _ in input().split()]
A = [int(input()) for _ in range(Q)]
s = [K - Q] * (N + 1)
for a in A:
    s[a] += 1
for i in range(1, N + 1):
    if s[i] > 0:
        print('Yes')
    else:
        print('No')

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


def main(stdin):
    N, K, Q = stdin[:3]
    ans = np.full(N + 1, K - Q, dtype=np.int64)
    for i in stdin[3:]:
        ans[i] += 1
    ans = np.where(ans > 0, 'Yes', 'No')
    print(*ans[1:], sep='\n')


if sys.argv[-1] == 'ONLINE_JUDGE':
    import numba
    from numba.pycc import CC
    cc = CC('my_module')
    cc.export('main', '(i8[:],)')(main)
    # b1: bool, i4: int32, i8: int64, double: f8, [:], [:, :]
    cc.compile()
else:
    from my_module import main
    stdin = np.array([int(_) for _ in open(0).read().split()])
    main(stdin)


Fixed submission:
N, K, Q = [int(_) for _ in input().split()]
A = [int(input()) for _ in range(Q)]
s = [K - Q] * (N + 1)
for a in A:
    s[a] += 1
for i in range(1, N + 1):
    if s[i] > 0:
        print('Yes')
    else:
        print('No')
Buggy python submission (verdict: Runtime Error):
N = int(input())
H = [int(_) for _ in input().split()]
ans = 0
for i in range(N - 1):
    if H[i] < H[i + 1]:
        ans = max(ans, now)
        now = 0
    now += 1
print(max(ans, now))


Fixed submission:
N = int(input())
H = [int(_) for _ in input().split()]
ans = now = 0
for i in range(N - 1):
    if H[i] < H[i + 1]:
        ans = max(ans, now)
        now = 0
    else:
        now += 1
print(max(ans, now))
Buggy python submission (verdict: Time Limit Exceeded):
import itertools
import sys
import numpy as np
#0-indexed
N = int(input())
A = np.array(sys.stdin.read().split(), dtype=int).reshape((N, N - 1))
A -= 1
R = np.arange(N)
ans = 0
while True:
    I = (A[A[:, 0]][:, 0] == R) * (A[:, 0] != -1)
    if not I.any():
        break
    ans += 1
    A[I, :-1] = A[I, 1:]
    A[I, -1] = -1
if (A == -1).all():
    print(ans)
else:
    print(-1)


Fixed submission:
import itertools
#0-indexed
N = int(input())
A = [[int(_) - 1 for _ in input().split()][::-1] for _ in range(N)]
ans = 0
cand = range(N)
left = 1
while True:
    cand_ = set()
    for i in cand:
        v = A[i]
        if not len(v):
            continue
        if A[v[-1]][-1] == i:
            f = 0
            cand_.add(i)
            cand_.add(v[-1])
    if not cand_:
        break
    cand = cand_
    left = 0
    for i in cand:
        A[i].pop()
        left |= len(A[i]) > 0
    ans += 1
if left:
    print(-1)
else:
    print(ans)

Buggy python submission (verdict: Runtime Error):
import itertools
import sys
import numpy as np
#0-indexed
N = int(input())
A = np.array(sys.stdin.buffer.read().split(), dtype=int).reshape((N, N - 1))
A -= 1
R = np.arange(N)
ans = 0
while True:
    I = (A[A[:, 0]][:, 0] == R) * (A[:, 0] != -1)
    if not I.any():
        break
    ans += 1
    A[I, :-1] = A[I, 1:]
    A[I, -1] = -1
if (A == -1).all():
    print(ans)
else:
    print(-1)


Fixed submission:
import itertools
#0-indexed
N = int(input())
A = [[int(_) - 1 for _ in input().split()][::-1] for _ in range(N)]
ans = 0
cand = range(N)
left = 1
while True:
    cand_ = set()
    for i in cand:
        v = A[i]
        if not len(v):
            continue
        if A[v[-1]][-1] == i:
            f = 0
            cand_.add(i)
            cand_.add(v[-1])
    if not cand_:
        break
    cand = cand_
    left = 0
    for i in cand:
        A[i].pop()
        left |= len(A[i]) > 0
    ans += 1
if left:
    print(-1)
else:
    print(ans)
Buggy python submission (verdict: Runtime Error):
import math
import itertools
N = int(input())
TX = []
for _ in range(N):
    x, y = [int(_) for _ in input().split()]
    t = math.atan2(y, x)
    TX += [(t, x)]
    TY += [(t, y)]
TX.sort()
TY.sort()
xa = [0] + list(itertools.accumulate(TX))
ya = [0] + list(itertools.accumulate(TY))
ans = 0
for i, j in itertools.combinations(range(len(xa)), 2):
    ans = max(ans, (xa[j] - xa[i])**2 + (ya[j] - ya[i])**2)
print(ans**0.5)


Fixed submission:
import itertools
N = int(input())
XY = [[int(_) for _ in input().split()] for _ in range(N)]
xy1 = []
xy2 = []
xy3 = []
xy4 = []
for x, y in XY:
    if x >= 0:
        if y >= 0:
            xy1 += [[x, y]]
        else:
            xy4 += [[x, y]]
    else:
        if y >= 0:
            xy2 += [[x, y]]
        else:
            xy3 += [[x, y]]
xy1.sort(key=lambda xy: float('inf') if xy[0] == 0 else xy[1] / xy[0])
xy2.sort(key=lambda xy: xy[1] / xy[0])
xy3.sort(key=lambda xy: xy[1] / xy[0])
xy4.sort(key=lambda xy: -float('inf') if xy[0] == 0 else xy[1] / xy[0])
XY = xy1 + xy2 + xy3 + xy4
N = len(XY)
XY *= 2
acc = list(
    itertools.accumulate(XY, func=lambda a, b: [a[0] + b[0], a[1] + b[1]]))
ans = 0
for i in range(N):
    for j in range(i + 1, i + N + 1):
        x = acc[j][0] - acc[i][0]
        y = acc[j][1] - acc[i][1]
        ans = max(ans, x**2 + y**2)
print(ans**0.5)
Buggy python submission (verdict: Time Limit Exceeded):
import collections
N, QQ = [int(_) for _ in input().split()]
AB = [[int(_) for _ in input().split()] for _ in range(N - 1)]
PX = [[int(_) for _ in input().split()] for _ in range(QQ)]
cd = collections.defaultdict
G = cd(set)
for ab in AB:
    a, b = ab
    G[a].add(b)
    G[b].add(a)
count = [0] * (N + 1)
for px in PX:
    p, x = px
    count[p] += x
ans = [0] * (N + 1)
visited = [False] * (N + 1)
visited[1] = 1
Q = [1]
while Q:
    q = Q.pop()
    for nq in G[q]:
        if not visited[nq]:
            visited[nq] = True
            Q += [nq]
            count[nq] += count[q]
print(*count[1:])


Fixed submission:
import collections
N, QQ = [int(_) for _ in input().split()]
AB = [[int(_) for _ in input().split()] for _ in range(N - 1)]
PX = [[int(_) for _ in input().split()] for _ in range(QQ)]
cd = collections.defaultdict
G = cd(set)
for ab in AB:
    a, b = ab
    G[a].add(b)
    G[b].add(a)
count = [0] * (N + 1)
for px in PX:
    p, x = px
    count[p] += x
ans = [0] * (N + 1)
visited = [False] * (N + 1)
visited[1] = 1
Q = [1]
while Q:
    q = Q.pop()
    for nq in G[q]:
        if not visited[nq]:
            visited[nq] = True
            Q += [nq]
            count[nq] += count[q]
print(*count[1:])
Buggy python submission (verdict: Runtime Error):
if (A + B) % 2:
    print('IMPOSSIBLE')
else:
    print((A + B) // 2)


Fixed submission:
A, B = [int(_) for _ in input().split()]
if (A + B) % 2:
    print('IMPOSSIBLE')
else:
    print((A + B) // 2)
Buggy python submission (verdict: Time Limit Exceeded):
import itertools
S = input()[::-1]
mod = 10**9 + 7
A = [0] * 13
N = 0
for i, v in enumerate(S):
    p = pow(10, i, 13)
    if v == '?':
        A[p] += 1
    else:
        N += int(v) * p
        N %= 13
dp = [0] * 13
dp[N] = 1
for i, v in enumerate(A):
    for _ in range(v):
        dp_old = dp[:]
        for j, k in itertools.product(range(1, 10), range(13)):
            x = (j * i + k) % 13
            dp[x] += dp_old[k]
            dp[x] %= mod
print(dp[5])


Fixed submission:
import itertools
S = input()[::-1]
mod = 10**9 + 7
A = [0] * 13
N = 0
for i, v in enumerate(S):
    p = pow(10, i, 13)
    if v == '?':
        A[p] += 1
    else:
        N += int(v) * p
        N %= 13
dp = [0] * 13
dp[N] = 1
for i, v in enumerate(A):
    for _ in range(v):
        dp_old = dp[:]
        for j, k in itertools.product(range(1, 10), range(13)):
            x = (j * i + k) % 13
            dp[x] += dp_old[k]
            dp[x] %= mod
print(dp[5])

Buggy python submission (verdict: Runtime Error):
import itertools
S = input()[::-1]
mod = 10**9 + 7
A = [0] * 13
N = 0
for i, v in enumerate(S):
    p = pow(10, i, 13)
    if v == '?':
        A[p] += 1
    else:
        N += int(v) * p
        N %= 13
dp = [0] * 13
dp[N] = 1
for i, v in enumerate(A):
    for _ in range(v):
        dp_old = dp.copy()
        for j, k in itertools.product(range(1, 10), range(13)):
            x = (j * i + k) % 13
            dp[x] += dp_old[k]
            dp[x] %= mod
print(dp[5])


Fixed submission:
import itertools
S = input()[::-1]
mod = 10**9 + 7
A = [0] * 13
N = 0
for i, v in enumerate(S):
    p = pow(10, i, 13)
    if v == '?':
        A[p] += 1
    else:
        N += int(v) * p
        N %= 13
dp = [0] * 13
dp[N] = 1
for i, v in enumerate(A):
    for _ in range(v):
        dp_old = dp[:]
        for j, k in itertools.product(range(1, 10), range(13)):
            x = (j * i + k) % 13
            dp[x] += dp_old[k]
            dp[x] %= mod
print(dp[5])
Buggy python submission (verdict: Runtime Error):
N = int(input())
A = [int(input()) for _ in range(N)]


class SegmentTree():
    def __init__(self, array, f, e, size):
        """
        Parameters
        ----------
        array : list
            to construct segment tree from
        f : func
            binary operation of the monoid
        e : 
            identity element of the monoid
        size : int
            limit for array size
        """
        self.f = f
        self.e = e
        self.size = size
        self.n = n = len(array)
        self.dat = dat = [e] * n + array + [e] * (2 * size - 2 * n)
        for i in range(n - 1, 0, -1):  # build
            dat[i] = f(dat[i << 1], dat[i << 1 | 1])

    def modify(self, p, v):  # set value at position p (0-indexed)
        f, n, dat = self.f, self.n, self.dat
        p += n
        dat[p] = v
        while p > 1:
            dat[p >> 1] = f(dat[p], dat[p ^ 1])
            p >>= 1

    def query(self, l, r):  # result on interval [l, r) (0-indexed)
        f, e, n, dat = self.f, self.e, self.n, self.dat
        res = e
        l += n
        r += n
        while l < r:
            if l & 1:
                res = f(res, dat[l])
                l += 1
            if r & 1:
                r -= 1
                res = f(res, dat[r])
            l >>= 1
            r >>= 1
        return res


size = 10**5+5
e = (0,0)
def f2(xs,ys):
    if ys[0]>0:
        return ys
    else:
        return xs
ST = SegmentTree(list(zip([size]+[0]*(size-1),range(size))), f=lambda x,y:f2(x,y), e=e, size=size)
ans = 0
for a in A:
    bs = ST.query(0,a)
    if bs[1]==0:
        c=ST.query(a,a+1)[0]
        ST.modify(a,(c+1,a))
        ans+=1
    else:
        c=ST.query(a,a+1)[0]
        ST.modify(a,(c+1,a))
        ST.modify(bs[0],(bs[0],bs[1]-1))
print(ans)


Fixed submission:
from bisect import bisect_right as br
INF = 10 ** 10
n = int(input())
alst = [int(input()) for _ in range(n)][::-1]
dp = [INF] * (n + 1)
dp[0] = -1
ans = 0
for a in alst:
  ind = br(dp, a)
  dp[ind] = a
  ans = max(ans, ind)
print(ans)
Buggy python submission (verdict: Runtime Error):
import itertools
import numpy as np
import collections

N = int(input())
A = [int(_) for _ in input().split()]
count = collections.defaultdict(int)
for a in A:
    count[a] += 1
if len(count) == 1:
    a = count.keys()[0]
    if a ^ a == a:
        print('Yes')
        exit()
elif len(count) == 2:
    a, b = sorted(count.keys())
    if a == 0 and count[a] == 1 and count[b] == 2:
        print('Yes')
        exit()
elif len(count) == 3:
    a, b, c = count.keys()
    if a ^ b == c and count[a] == count[b] == count[c]:
        print('Yes')
        exit()
print('No')


Fixed submission:
import collections

N = int(input())
A = [int(_) for _ in input().split()]
count = collections.defaultdict(int)
for x in A:
    count[x] += 1
if len(count) == 1:
    a = list(count.keys())[0]
    if a == 0:
        print('Yes')
        exit()
elif len(count) == 2:
    a, b = sorted(count.keys())
    if a == 0 and count[b] == count[a] * 2:
        print('Yes')
        exit()
elif len(count) == 3:
    a, b, c = count.keys()
    if a ^ b == c and count[a] == count[b] == count[c]:
        print('Yes')
        exit()
print('No')

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

N = int(input())
A = [int(_) for _ in input().split()]
count = collections.defaultdict(int)
for a in A:
    count[a] += 1
if len(count) == 1:
    a = count.keys()[0]
    if a ^ a == a:
        print('Yes')
        exit()
elif len(count) == 2:
    a, b = count.keys()
    if a ^ a == b and b ^ b == a and count[a] == count[b]:
        print('Yes')
        exit()
elif len(count) == 3:
    a, b, c = count.keys()
    if a ^ b == c and count[a] == count[b] == count[c]:
        print('Yes')
        exit()
print('No')


Fixed submission:
import collections

N = int(input())
A = [int(_) for _ in input().split()]
count = collections.defaultdict(int)
for x in A:
    count[x] += 1
if len(count) == 1:
    a = list(count.keys())[0]
    if a == 0:
        print('Yes')
        exit()
elif len(count) == 2:
    a, b = sorted(count.keys())
    if a == 0 and count[b] == count[a] * 2:
        print('Yes')
        exit()
elif len(count) == 3:
    a, b, c = count.keys()
    if a ^ b == c and count[a] == count[b] == count[c]:
        print('Yes')
        exit()
print('No')
Buggy python submission (verdict: Runtime Error):
N=int(input())
A=[int(_) for _ in input().split()]
ans=[0]*N
ans[0]=sum(A)//2-sum(A[1::2])
for i in range(N-１):
    ans[i+1]=A[i]-ans[i]
print(' '.join(str(2*a) for a in ans))

Fixed submission:
N=int(input())
A=[int(_) for _ in input().split()]
ans=[0]*N
ans[0]=sum(A)//2-sum(A[1::2])
for i in range(N-1):
    ans[i+1]=A[i]-ans[i]
print(' '.join(str(2*a) for a in ans))

Buggy python submission (verdict: Runtime Error):
N=int(input())
A=[int(_) for _ in input().split()]
ans=[0]*N
ans[0]=sum(A)//2-sum(A[1::2])
for i in range(N-):
    ans[i+1]=A[i]-ans[i]
print(' '.join(str(2*a) for a in ans))

Fixed submission:
N=int(input())
A=[int(_) for _ in input().split()]
ans=[0]*N
ans[0]=sum(A)//2-sum(A[1::2])
for i in range(N-1):
    ans[i+1]=A[i]-ans[i]
print(' '.join(str(2*a) for a in ans))

Buggy python submission (verdict: Runtime Error):
import numpy as np
N=int(input())
A=[int(_) for _ in input().split()]
X=np.eye(N)
for i in range(N-1):
    X[i+1][i]=1
X[0][N-1]=1
ans=np.dot(A,np.linalg.inv(X))*2
print(*ans.astype(int))

Fixed submission:
N=int(input())
A=[int(_) for _ in input().split()]
ans=[0]*N
ans[0]=sum(A)//2-sum(A[1::2])
for i in range(N-1):
    ans[i+1]=A[i]-ans[i]
print(' '.join(str(2*a) for a in ans))
Buggy python submission (verdict: Time Limit Exceeded):
#dp[n][k][i][c]:色c(0:赤 1:青)で終わり、全ボールn個・赤ボールk個でi回操作をする必要がある
#
#for any n: dp[n][0][0][1]=1
#
#...rR = ...r
#...bR = ...b + 1
# dp[n][k][i][0] = dp[n-1][k-1][i][0]+dp[n-1][k-1][i-1][1]
#
#...rB = ...r
#...bB = ...b
# dp[n][k][i][1] = dp[n-1][k][i][0]+dp[n-1][k][i][1]
N, K = [int(_) for _ in input().split()]
mod = 10**9 + 7
dp = [[[[0, 0] for _ in range(K + 1)] for _ in range(K + 1)]
      for _ in range(N + 1)]
dp[0][0][0][1] = 1
for n in range(1, N + 1):
    dp[n][0][0][1] = 1
    for k in range(1,K + 1):
        for i in range(1, K + 1):
            dp[n][k][i][0] = dp[n - 1][k - 1][i][0] + dp[n - 1][k - 1][i -
                                                                       1][1]
            dp[n][k][i][1] = dp[n - 1][k][i][0] + dp[n - 1][k][i][1]
            dp[n][k][i][0] %= mod
            dp[n][k][i][1] %= mod
dpNK = dp[N][K]
for i in range(1, K + 1):
    print(sum(dpNK[i]) % mod)


Fixed submission:
'''
C[n-k+1,i]*C[k-1,i-1](=F(i)とおく)
F(1)=n-k+1
また
C[n,r+1]/C[n,r]=(n-r)/(r+1)
より
F(i+1)/F(i)=(k-i)*(n-k+1-i)/i(i+1)
'''
N, K = [int(_) for _ in input().split()]
mod = 10**9 + 7
a = N - K + 1
print(a % mod)
for i in range(1, K):
    a = a * (K - i) * (N - K + 1 - i) // i // (i + 1)
    print(a % mod)
Buggy python submission (verdict: Runtime Error):
import itertools
N, M = [int(_) for _ in input().split()]
S = [int(_) for _ in input().split()]
T = [int(_) for _ in input().split()]
mod = 10**9 + 7
dp = [[1] * (M + 1)] + [[1] + [0] * M for _ in range(N)]
for n, m in itertools.product(range(N), range(M)):
    dp[n + 1][m + 1] = dp[n][m + 1] + dp[n + 1][m] - dp[n][m]
    if S[n] == T[m]:
        dp[n + 1][m + 1] += dp[n][m]
    dp[n + 1][m + 1] %= mod
print(dp[-1][-1])


Fixed submission:
X, A = [int(_) for _ in input().split()]
if X < A:
    print(0)
else:
    print(10)
Buggy python submission (verdict: Runtime Error):
import itertools
N, M = [int(_) for _ in input().split()]
S = [int(_) for _ in input().split()]
T = [int(_) for _ in input().split()]
mod = 10**9 + 7
dp = [[1] * (N + 1)] + [[1] + [0] * M for _ in range(N)]
for n, m in itertools.product(range(N), range(M)):
    dp[n + 1][m + 1] = dp[n][m + 1] + dp[n + 1][m] - dp[n][m]
    if S[n] == T[m]:
        dp[n + 1][m + 1] += dp[n][m]
    dp[n + 1][m + 1] %= mod
print(dp[-1][-1])


Fixed submission:
import itertools
N, M = [int(_) for _ in input().split()]
S = [int(_) for _ in input().split()]
T = [int(_) for _ in input().split()]
mod = 10**9 + 7
dp = [[1] * (M + 1)] + [[1] + [0] * M for _ in range(N)]
for n, m in itertools.product(range(N), range(M)):
    dp[n + 1][m + 1] = dp[n][m + 1] + dp[n + 1][m] - dp[n][m]
    if S[n] == T[m]:
        dp[n + 1][m + 1] += dp[n][m]
    dp[n + 1][m + 1] %= mod
print(dp[-1][-1])

Buggy python submission (verdict: Runtime Error):
import itertools
N, M = [int(_) for _ in input().split()]
S = [int(_) for _ in input().split()]
T = [int(_) for _ in input().split()]
mod = 10**9 + 7
dp = [[1] * (N + 1)] + [[1] + [0] * M for _ in range(N)]
for n, m in itertools.product(range(N), range(M)):
    dp[n + 1][m + 1] = dp[n][m + 1] + dp[n + 1][m] - dp[n][m]
    if S[n] == T[m]:
        dp[n + 1][m + 1] += dp[n][m]
    dp[n + 1][m + 1] %= mod
print(dp[-1][-1])


Fixed submission:
import itertools
N, M = [int(_) for _ in input().split()]
S = [int(_) for _ in input().split()]
T = [int(_) for _ in input().split()]
mod = 10**9 + 7
dp = [[1] * (M + 1)] + [[1] + [0] * M for _ in range(N)]
for n, m in itertools.product(range(N), range(M)):
    dp[n + 1][m + 1] = dp[n][m + 1] + dp[n + 1][m] - dp[n][m]
    if S[n] == T[m]:
        dp[n + 1][m + 1] += dp[n][m]
    dp[n + 1][m + 1] %= mod
print(dp[-1][-1])