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


@njit("i1(i1,i1[:])", cache=True)
def solve(N, D):
    ans = 0
    for i in range(1 << N):
        clocks = np.zeros((N + 2), dtype=np.int8)
        clocks[-1] = 24
        for j in range(N):
            if i >> j & 1:
                clocks[j + 1] = D[j]
            else:
                clocks[j + 1] = 24 - D[j]
        clocks.sort()
        ans = max(ans, np.min(np.diff(clocks)))
    return ans


N = int(input())
D = np.array(input().split(), dtype=np.int8)
if N >= 24:
    print(0)
else:
    print(solve(N, D))


Fixed submission:
from collections import Counter
from itertools import product


N = int(input())
D = list(map(int, input().split()))
D_cnt = Counter(D)
if N >= 24 or D_cnt[0] > 0 or D_cnt[12] > 1 or any(D_cnt[i] > 2 for i in range(1, 12)):
    print(0)
    exit()
clock = [0, 24]
undet = []
if 12 in D_cnt:
    clock.append(12)
for i in range(1, 12):
    if D_cnt[i] == 2:
        clock.append(i)
        clock.append(24 - i)
    elif D_cnt[i] == 1:
        undet.append(i)

ans = 0
for rp in product([0, 1], repeat=len(undet)):
    candidate = clock[:]
    for j, is_flipped in enumerate(rp):
        candidate.append(undet[j]) if is_flipped else candidate.append(24 - undet[j])
    candidate.sort()
    ans = max(ans, min(ca - cb for cb, ca in zip(candidate, candidate[1:])))
print(ans)

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


def solve(N, D):
    ans = 0
    for i in range(1 << N):
        clocks = np.zeros((N + 2), dtype=np.int8)
        clocks[-1] = 24
        for j in range(N):
            if i >> j & 1:
                clocks[j + 1] = D[j]
            else:
                clocks[j + 1] = 24 - D[j]
        clocks.sort()
        ans = max(ans, np.min(np.diff(clocks)))
    return ans


N = int(input())
D = np.array(input().split(), dtype=np.int8)
if N >= 24:
    print(0)
else:
    print(solve(N, D))


Fixed submission:
from collections import Counter
from itertools import product


N = int(input())
D = list(map(int, input().split()))
D_cnt = Counter(D)
if N >= 24 or D_cnt[0] > 0 or D_cnt[12] > 1 or any(D_cnt[i] > 2 for i in range(1, 12)):
    print(0)
    exit()
clock = [0, 24]
undet = []
if 12 in D_cnt:
    clock.append(12)
for i in range(1, 12):
    if D_cnt[i] == 2:
        clock.append(i)
        clock.append(24 - i)
    elif D_cnt[i] == 1:
        undet.append(i)

ans = 0
for rp in product([0, 1], repeat=len(undet)):
    candidate = clock[:]
    for j, is_flipped in enumerate(rp):
        candidate.append(undet[j]) if is_flipped else candidate.append(24 - undet[j])
    candidate.sort()
    ans = max(ans, min(ca - cb for cb, ca in zip(candidate, candidate[1:])))
print(ans)

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


@njit("i1(i1,i1[:])")
def solve(N, D):
    ans = 0
    for i in range(1 << N):
        clocks = np.zeros((N + 2), dtype=np.int8)
        clocks[-1] = 24
        for j in range(N):
            if i >> j & 1:
                clocks[j + 1] = D[j]
            else:
                clocks[j + 1] = 24 - D[j]
        clocks.sort()
        ans = max(ans, np.min(np.diff(clocks)))
    return ans


N = int(input())
D = np.array(input().split(), dtype=np.int8)
if N >= 24:
    print(0)
else:
    print(solve(N, D))


Fixed submission:
from collections import Counter
from itertools import product


N = int(input())
D = list(map(int, input().split()))
D_cnt = Counter(D)
if N >= 24 or D_cnt[0] > 0 or D_cnt[12] > 1 or any(D_cnt[i] > 2 for i in range(1, 12)):
    print(0)
    exit()
clock = [0, 24]
undet = []
if 12 in D_cnt:
    clock.append(12)
for i in range(1, 12):
    if D_cnt[i] == 2:
        clock.append(i)
        clock.append(24 - i)
    elif D_cnt[i] == 1:
        undet.append(i)

ans = 0
for rp in product([0, 1], repeat=len(undet)):
    candidate = clock[:]
    for j, is_flipped in enumerate(rp):
        candidate.append(undet[j]) if is_flipped else candidate.append(24 - undet[j])
    candidate.sort()
    ans = max(ans, min(ca - cb for cb, ca in zip(candidate, candidate[1:])))
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
from itertools import product

N = int(input())
D = list(map(int, input().split()))
if N >= 24:
    print(0)
    exit()

ans = 0
for pr in product([0, 1], repeat=N):
    clocks = []
    for i, is_flipped in enumerate(pr):
        if is_flipped:
            clocks.append(D[i])
        else:
            clocks.append(24 - D[i])
    res = 25
    clocks = [0] + sorted(clocks) + [24]
    for cf, cb in zip(clocks, clocks[1:]):
        res = min(res, cb - cf)
    ans = max(ans, res)
print(ans)


Fixed submission:
from collections import Counter
from itertools import product


N = int(input())
D = list(map(int, input().split()))
D_cnt = Counter(D)
if N >= 24 or D_cnt[0] > 0 or D_cnt[12] > 1 or any(D_cnt[i] > 2 for i in range(1, 12)):
    print(0)
    exit()
clock = [0, 24]
undet = []
if 12 in D_cnt:
    clock.append(12)
for i in range(1, 12):
    if D_cnt[i] == 2:
        clock.append(i)
        clock.append(24 - i)
    elif D_cnt[i] == 1:
        undet.append(i)

ans = 0
for rp in product([0, 1], repeat=len(undet)):
    candidate = clock[:]
    for j, is_flipped in enumerate(rp):
        candidate.append(undet[j]) if is_flipped else candidate.append(24 - undet[j])
    candidate.sort()
    ans = max(ans, min(ca - cb for cb, ca in zip(candidate, candidate[1:])))
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
from itertools import product

N = int(input())
D = list(map(int, input().split()))
if N >= 24:
    print(0)
    exit()

ans = 0
for pr in product([0, 1], repeat=N):
    clocks = []
    for i, is_flipped in enumerate(pr):
        if is_flipped:
            clocks.append(D[i])
        else:
            clocks.append(24 - D[i])
    res = 25
    clocks = [0] + sorted(clocks) + [24]
    for cf, cb in zip(clocks, clocks[1:]):
        res = min(res, cb - cf)
    ans = max(ans, res)
print(ans)


Fixed submission:
from collections import Counter
from itertools import product


N = int(input())
D = list(map(int, input().split()))
D_cnt = Counter(D)
if N >= 24 or D_cnt[0] > 0 or D_cnt[12] > 1 or any(D_cnt[i] > 2 for i in range(1, 12)):
    print(0)
    exit()
clock = [0, 24]
undet = []
if 12 in D_cnt:
    clock.append(12)
for i in range(1, 12):
    if D_cnt[i] == 2:
        clock.append(i)
        clock.append(24 - i)
    elif D_cnt[i] == 1:
        undet.append(i)

ans = 0
for rp in product([0, 1], repeat=len(undet)):
    candidate = clock[:]
    for j, is_flipped in enumerate(rp):
        candidate.append(undet[j]) if is_flipped else candidate.append(24 - undet[j])
    candidate.sort()
    ans = max(ans, min(ca - cb for cb, ca in zip(candidate, candidate[1:])))
print(ans)