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

C = collections.Counter(D)
if C.most_common()[0][1] >= 3:
    print(0)
    exit()


ans = 0
for i in range(2 ** N):
    D0 = [0, 24]
    for j in range(N):  # このループが一番のポイント
        if ((i >> j) & 1):  # 順に右にシフトさせ最下位bitのチェックを行う
            D0.append(24-D[j])
        else:
            D0.append(D[j])

    D0 = sorted(D0)
    c = 24
    for i in range(N+1):
        c = min(c, D0[i+1]-D0[i])
    ans = max(ans, c)

print(ans)


Fixed submission:
import collections
import copy
N = int(input())
D = [int(i) for i in input().split()]

C = collections.Counter(D)
if C.most_common()[0][1] >= 3:
    print(0)
    exit()

D1 = [0, 24]
m = []
for k, v in C.items():
    if v == 2:
        D1.append(k)
        D1.append(24-k)
    elif v == 1:
        m.append(k)

ans = 0
for i in range(2 ** len(m)):
    D0 = copy.deepcopy(D1)
    for j in range(len(m)):  # このループが一番のポイント
        if ((i >> j) & 1):  # 順に右にシフトさせ最下位bitのチェックを行う
            D0.append(24-m[j])
        else:
            D0.append(m[j])

    # print(D0)

    D0 = sorted(D0)
    c = 24
    for i in range(N+1):
        c = min(c, D0[i+1]-D0[i])
    ans = max(ans, c)

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
import collections
N = int(input())
D = [int(i) for i in input().split()]

C = collections.Counter(D)
if C.most_common()[0][1] >= 3:
    print(0)
    exit()


ans = 0
for i in range(2 ** N):
    D0 = list((0, 24))
    for j in range(N):  # このループが一番のポイント
        if ((i >> j) & 1):  # 順に右にシフトさせ最下位bitのチェックを行う
            D0.append(24-D[j])
        else:
            D0.append(D[j])

    D0 = np.sort(np.array(D0))
    c = np.amin(np.diff(D0))
    ans = max(ans, c)

print(ans)


Fixed submission:
import collections
import copy
N = int(input())
D = [int(i) for i in input().split()]

C = collections.Counter(D)
if C.most_common()[0][1] >= 3:
    print(0)
    exit()

D1 = [0, 24]
m = []
for k, v in C.items():
    if v == 2:
        D1.append(k)
        D1.append(24-k)
    elif v == 1:
        m.append(k)

ans = 0
for i in range(2 ** len(m)):
    D0 = copy.deepcopy(D1)
    for j in range(len(m)):  # このループが一番のポイント
        if ((i >> j) & 1):  # 順に右にシフトさせ最下位bitのチェックを行う
            D0.append(24-m[j])
        else:
            D0.append(m[j])

    # print(D0)

    D0 = sorted(D0)
    c = 24
    for i in range(N+1):
        c = min(c, D0[i+1]-D0[i])
    ans = max(ans, c)

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
import collections
N = int(input())
D = [int(i) for i in input().split()]+[0, 24]

C = collections.Counter(D)
if C.most_common()[0][1] >= 3:
    print(0)
    exit()


ans = 0
for i in range(2 ** N):
    D0 = D
    for j in range(N):  # このループが一番のポイント
        if ((i >> j) & 1):  # 順に右にシフトさせ最下位bitのチェックを行う
            D0[j] = 24-D0[j]

        D0 = np.sort(np.array(D0))
        c = np.amin(np.diff(D0))
    ans = max(ans, c)

print(ans)


Fixed submission:
import collections
import copy
N = int(input())
D = [int(i) for i in input().split()]

C = collections.Counter(D)
if C.most_common()[0][1] >= 3:
    print(0)
    exit()

D1 = [0, 24]
m = []
for k, v in C.items():
    if v == 2:
        D1.append(k)
        D1.append(24-k)
    elif v == 1:
        m.append(k)

ans = 0
for i in range(2 ** len(m)):
    D0 = copy.deepcopy(D1)
    for j in range(len(m)):  # このループが一番のポイント
        if ((i >> j) & 1):  # 順に右にシフトさせ最下位bitのチェックを行う
            D0.append(24-m[j])
        else:
            D0.append(m[j])

    # print(D0)

    D0 = sorted(D0)
    c = 24
    for i in range(N+1):
        c = min(c, D0[i+1]-D0[i])
    ans = max(ans, c)

print(ans)

Buggy python submission (verdict: Runtime Error):
import numpy as np
import collections
N = int(input())
D = [int(i) for i in input().split()]+[0, 24]

C = collections.Counter(D)
if C.most_common()[0][1] >= 3:
    print(0)
    exit()


ans = 0
for i in range(2 ** N):
    D0 = D
    for j in range(N):  # このループが一番のポイント
        if ((i >> j) & 1):  # 順に右にシフトさせ最下位bitのチェックを行う
            D0[j] = 24-D0[j]

        D0 = np.sort(np.array(D0))
        c = np.amin(np.diff(D0))
    ans = max(ans, c)

print(ans)


Fixed submission:
import collections
import copy
N = int(input())
D = [int(i) for i in input().split()]

C = collections.Counter(D)
if C.most_common()[0][1] >= 3:
    print(0)
    exit()

D1 = [0, 24]
m = []
for k, v in C.items():
    if v == 2:
        D1.append(k)
        D1.append(24-k)
    elif v == 1:
        m.append(k)

ans = 0
for i in range(2 ** len(m)):
    D0 = copy.deepcopy(D1)
    for j in range(len(m)):  # このループが一番のポイント
        if ((i >> j) & 1):  # 順に右にシフトさせ最下位bitのチェックを行う
            D0.append(24-m[j])
        else:
            D0.append(m[j])

    # print(D0)

    D0 = sorted(D0)
    c = 24
    for i in range(N+1):
        c = min(c, D0[i+1]-D0[i])
    ans = max(ans, c)

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import collections
N = int(input())
D = [int(i) for i in input().split()]+[0, 24]

C = collections.Counter(D)
if C.most_common()[0][1] >= 3:
    print(0)
    exit()

ans = 0
for i in range(2 ** N):
    D0 = D
    for j in range(N):  # このループが一番のポイント
        if ((i >> j) & 1):  # 順に右にシフトさせ最下位bitのチェックを行う
            D0[j] = 24-D0[j]
        D0 = sorted(D0)
        c = 24
        for k in range(N+1):
            c = min(c, D0[k+1]-D0[k])
    ans = max(ans, c)

print(ans)


Fixed submission:
import collections
import copy
N = int(input())
D = [int(i) for i in input().split()]

C = collections.Counter(D)
if C.most_common()[0][1] >= 3:
    print(0)
    exit()

D1 = [0, 24]
m = []
for k, v in C.items():
    if v == 2:
        D1.append(k)
        D1.append(24-k)
    elif v == 1:
        m.append(k)

ans = 0
for i in range(2 ** len(m)):
    D0 = copy.deepcopy(D1)
    for j in range(len(m)):  # このループが一番のポイント
        if ((i >> j) & 1):  # 順に右にシフトさせ最下位bitのチェックを行う
            D0.append(24-m[j])
        else:
            D0.append(m[j])

    # print(D0)

    D0 = sorted(D0)
    c = 24
    for i in range(N+1):
        c = min(c, D0[i+1]-D0[i])
    ans = max(ans, c)

print(ans)