Buggy python submission (verdict: Runtime Error):
import sys
input = sys.stdin.readline
#from itertools import groupby
import numpy as np
def print_ans(N, input_line):
    """Test Case
    >>> print_ans(4, "0 1 1 2")
    2
    >>> print_ans(4, "1 1 1 1")
    0
    >>> print_ans(7, "0 3 2 1 2 2 1")
    24
    """
    ar = list(map(int,input_line.split()))
    ngflg = False
    if ar[0] != 0:
        ngflg = True
    ar = sorted(ar[1:])
    check_ar = list(set(ar))
    if check_ar[0] == 0:
        ngflg = True
    # for i in range(len(check_ar) - 1):
    #     if check_ar[i] + 1 != check_ar[i + 1]:
    #         ngflg = True
    ar = np.array(ar)
    tmp = np.split(ar, np.cumsum(np.unique(ar, return_counts=True)[1])[:-1])
    if ngflg:
        print("0")
    else:
        # ans_ar= np.array([int(k) ** len(list(g)) for k, g in groupby(ar)])
        ans = 1
        for i in range(1,len(tmp)):
            ans *=  len(tmp[i -1]) ** len(tmp[i])

        print(ans % 998244353)
        # print(np.prod(ans_ar) % 998244353)

if __name__ == '__main__':
    N = int(input().rstrip())
    ar = input().rstrip()
    print_ans(N, ar)


Fixed submission:
import sys
input = sys.stdin.readline
#from itertools import groupby
import numpy as np
def print_ans(N, input_line):
    """Test Case
    >>> print_ans(4, "0 1 1 2")
    2
    >>> print_ans(4, "1 1 1 1")
    0
    >>> print_ans(7, "0 3 2 1 2 2 1")
    24
    """
    ar = list(map(int,input_line.split()))
    ngflg = False
    if ar[0] != 0:
        ngflg = True
    k = max(ar)
    tmp_ar = [0] * (k + 1)
    for i in range(1,N):
        tmp_ar[ar[i]] += 1
    if tmp_ar[0] > 0:
        ngflg = True
    if ngflg:
        print("0")
    else:
        ans = 1
        for j in range(2, k + 1):
            ans *=  tmp_ar[j - 1] ** tmp_ar[j]

        print(ans % 998244353)
        # print(np.prod(ans_ar) % 998244353)

if __name__ == '__main__':
    N = int(input().rstrip())
    ar = input().rstrip()
    print_ans(N, ar)

Buggy python submission (verdict: Runtime Error):
import sys
input = sys.stdin.readline
from itertools import groupby
import numpy as np
def print_ans(N, input_line):
    """Test Case
    >>> print_ans(4, "0 1 1 2")
    2
    >>> print_ans(4, "1 1 1 1")
    0
    >>> print_ans(7, "0 3 2 1 2 2 1")
    24
    """
    ar = list(map(int,input_line.split()))
    ngflg = False
    if ar[0] != 0:
        ngflg = True
    ar = sorted(ar[1:])
    check_ar = list(set(ar))
    if check_ar[0] == 0:
        ngflg = True
    # for i in range(len(check_ar) - 1):
    #     if check_ar[i] + 1 != check_ar[i + 1]:
    #         ngflg = True
    ar = np.array(ar)
    tmp = np.split(ar, np.cumsum(np.unique(ar, return_counts=True)[1])[:-1])
    if ngflg:
        print("0")
    else:
        # ans_ar= np.array([int(k) ** len(list(g)) for k, g in groupby(ar)])
        ans = 1
        for i in range(1,len(tmp)):
            ans *=  len(tmp[i -1]) ** len(tmp[i])

        print(ans % 998244353)
        # print(np.prod(ans_ar) % 998244353)

if __name__ == '__main__':
    N = int(input().rstrip())
    ar = input().rstrip()
    print_ans(N, ar)


Fixed submission:
import sys
input = sys.stdin.readline
#from itertools import groupby
import numpy as np
def print_ans(N, input_line):
    """Test Case
    >>> print_ans(4, "0 1 1 2")
    2
    >>> print_ans(4, "1 1 1 1")
    0
    >>> print_ans(7, "0 3 2 1 2 2 1")
    24
    """
    ar = list(map(int,input_line.split()))
    ngflg = False
    if ar[0] != 0:
        ngflg = True
    k = max(ar)
    tmp_ar = [0] * (k + 1)
    for i in range(1,N):
        tmp_ar[ar[i]] += 1
    if tmp_ar[0] > 0:
        ngflg = True
    if ngflg:
        print("0")
    else:
        ans = 1
        for j in range(2, k + 1):
            ans *=  tmp_ar[j - 1] ** tmp_ar[j]

        print(ans % 998244353)
        # print(np.prod(ans_ar) % 998244353)

if __name__ == '__main__':
    N = int(input().rstrip())
    ar = input().rstrip()
    print_ans(N, ar)

Buggy python submission (verdict: Runtime Error):
import sys
input = sys.stdin.readline
from itertools import groupby
import numpy as np
def print_ans(N, input_line):
    """Test Case
    >>> print_ans(4, "0 1 1 2")
    2
    >>> print_ans(4, "1 1 1 1")
    0
    >>> print_ans(7, "0 3 2 1 2 2 1")
    24
    """
    ar = list(map(int,input_line.split()))
    ngflg = False
    if ar[0] != 0:
        ngflg = True
    ar = sorted(ar[1:])
    check_ar = list(set(ar))
    if check_ar[0] == 0:
        ngflg = True
    # for i in range(len(check_ar) - 1):
    #     if check_ar[i] + 1 != check_ar[i + 1]:
    #         ngflg = True
    ar = np.array(ar)
    # tmp = np.split(ar, np.cumsum(np.unique(ar, return_counts=True)[1])[:-1])

    if ngflg:
        print("0")
    else:
         ans_ar= np.array([int(k) ** len(list(g)) for k, g in groupby(ar)])
        print(np.prod(ans_ar) % 998244353)

if __name__ == '__main__':
    N = int(input().rstrip())
    ar = input().rstrip()
    print_ans(N, ar)


Fixed submission:
import sys
input = sys.stdin.readline
#from itertools import groupby
import numpy as np
def print_ans(N, input_line):
    """Test Case
    >>> print_ans(4, "0 1 1 2")
    2
    >>> print_ans(4, "1 1 1 1")
    0
    >>> print_ans(7, "0 3 2 1 2 2 1")
    24
    """
    ar = list(map(int,input_line.split()))
    ngflg = False
    if ar[0] != 0:
        ngflg = True
    k = max(ar)
    tmp_ar = [0] * (k + 1)
    for i in range(1,N):
        tmp_ar[ar[i]] += 1
    if tmp_ar[0] > 0:
        ngflg = True
    if ngflg:
        print("0")
    else:
        ans = 1
        for j in range(2, k + 1):
            ans *=  tmp_ar[j - 1] ** tmp_ar[j]

        print(ans % 998244353)
        # print(np.prod(ans_ar) % 998244353)

if __name__ == '__main__':
    N = int(input().rstrip())
    ar = input().rstrip()
    print_ans(N, ar)

Buggy python submission (verdict: Runtime Error):
import sys
input = sys.stdin.readline
from itertools import groupby
import numpy as np
import pandas as pd
def print_ans(N, input_line):
    """Test Case
    >>> print_ans(4, "0 1 1 2")
    2
    >>> print_ans(4, "1 1 1 1")
    0
    >>> print_ans(7, "0 3 2 1 2 2 1")
    24
    """
    ar = list(map(int,input_line.split()))
    ngflg = False
    if ar[0] != 0:
        ngflg = True
    ar = sorted(ar[1:])
    check_ar = list(set(ar))
    if check_ar[0] == 0:
        ngflg = True
    for i in range(len(check_ar) - 1):
        if check_ar[i] + 1 != check_ar[i + 1]:
            ngflg = True
    if ngflg:
        print("0")
    else:
        ans_ar= np.array([int(k) ** len(list(g)) for k, g in groupby(ar)])
        ans = 1
        # for k, g in groupby(ar):
        #         ans *= int(k) ** len(list(g))
        print(np.prod(ans_ar) % 998244353)

if __name__ == '__main__':
    N = int(input().rstrip())
    ar = input().rstrip()
    print_ans(N, ar)

Fixed submission:
import sys
input = sys.stdin.readline
#from itertools import groupby
import numpy as np
def print_ans(N, input_line):
    """Test Case
    >>> print_ans(4, "0 1 1 2")
    2
    >>> print_ans(4, "1 1 1 1")
    0
    >>> print_ans(7, "0 3 2 1 2 2 1")
    24
    """
    ar = list(map(int,input_line.split()))
    ngflg = False
    if ar[0] != 0:
        ngflg = True
    k = max(ar)
    tmp_ar = [0] * (k + 1)
    for i in range(1,N):
        tmp_ar[ar[i]] += 1
    if tmp_ar[0] > 0:
        ngflg = True
    if ngflg:
        print("0")
    else:
        ans = 1
        for j in range(2, k + 1):
            ans *=  tmp_ar[j - 1] ** tmp_ar[j]

        print(ans % 998244353)
        # print(np.prod(ans_ar) % 998244353)

if __name__ == '__main__':
    N = int(input().rstrip())
    ar = input().rstrip()
    print_ans(N, ar)