Buggy python submission (verdict: Runtime Error):
def main():
    from sys import setrecursionlimit, stdin, stderr
    from os import environ
    from collections import defaultdict, deque, Counter
    from math import ceil, floor
    from itertools import accumulate, combinations, combinations_with_replacement
    setrecursionlimit(10**6)
    
    dbg = (lambda *something: stderr.write("\033[92m{}\033[0m".format(str(something)+'\n'))) if 'TERM_PROGRAM' in environ else lambda *x: 0
    input = lambda: stdin.readline().rstrip()
    LMIIS = lambda: list(map(int,input().split()))
    II = lambda: int(input())
    P = 10**9+7
    multimul = lambda L,i=0: (L[i] * multimul(L,i+1) % P  if i+1 < len(L) else  L[i])
    INF = 10**18+10

    N,K = LMIIS()
    A = LMIIS()
    
    if N == K:
        print(multimul(A))
        return
    not_negative = []
    negative = []
    for a in A:
        if a < 0:
            negative.append(a)
        else:
            not_negative.append(a)
    if len(negative) == N and K % 2 == 1:
        print(multimul(sorted(negative,reverse=True)[:K]))
        return
    not_negative.sort(reverse=True)

    not_negative = deque(not_negative)
    negative.sort()
    negative = deque(negative)
    ans = 1
    num_multiplied = 0
    while num_multiplied < K:
        if num_multiplied == K-1 or not_negative[0] * not_negative[1] > negative[0] * negative[1]:
            ans = ans * not_negative.popleft() % P
            num_multiplied += 1
        else:
            ans = ans * negative.popleft() * negative.popleft() % P
            num_multiplied += 2
    print(ans)
            


    
main()

Fixed submission:
def main():
    from sys import setrecursionlimit, stdin, stderr
    from os import environ
    from collections import defaultdict, deque, Counter
    from math import ceil, floor
    from itertools import accumulate, combinations, combinations_with_replacement
    setrecursionlimit(10**6)
    
    dbg = (lambda *something: stderr.write("\033[92m{}\033[0m".format(str(something)+'\n'))) if 'TERM_PROGRAM' in environ else lambda *x: 0
    input = lambda: stdin.readline().rstrip()
    LMIIS = lambda: list(map(int,input().split()))
    II = lambda: int(input())
    P = 10**9+7
    multimul = lambda L,i=0: (L[i] * multimul(L,i+1) % P  if i+1 < len(L) else  L[i])
    INF = 10**18+10

    N,K = LMIIS()
    A = LMIIS()
    
    if N == K:
        print(multimul(A))
        return
    not_negative = []
    negative = []
    for a in A:
        if a < 0:
            negative.append(a)
        else:
            not_negative.append(a)
    if len(negative) == N and K % 2 == 1:
        print(multimul(sorted(negative,reverse=True)[:K]))
        return
    not_negative.sort(reverse=True)

    not_negative = deque(not_negative)
    negative.sort()
    negative = deque(negative)
    ans = 1
    num_multiplied = 0
    while num_multiplied < K:
        if num_multiplied == K-1 or len(negative) < 2 or len(not_negative) >= 2 and not_negative[0] * not_negative[1] > negative[0] * negative[1]:
            ans = ans * not_negative.popleft() % P
            num_multiplied += 1
        else:
            ans = ans * negative.popleft() * negative.popleft() % P
            num_multiplied += 2
    print(ans)
            


    
main()

Buggy python submission (verdict: Runtime Error):
def main():
    from sys import setrecursionlimit, stdin, stderr
    from os import environ
    from collections import defaultdict, deque, Counter
    from math import ceil, floor
    from itertools import accumulate, combinations, combinations_with_replacement
    setrecursionlimit(10**6)
    dbg = (lambda *something: stderr.write("\033[92m{}\033[0m".format(str(something)+'\n'))) if 'TERM_PROGRAM' in environ else lambda *x: 0
    input = lambda: stdin.readline().rstrip()
    LMIIS = lambda: list(map(int,input().split()))
    II = lambda: int(input())
    P = 10**9+7
    INF = 10**18+10

    N,K = LMIIS()
    A = LMIIS()
    positive = []
    negative = []
    zero = []
    for a in A:
        if a >0:
            positive.append(a)
        elif a == 0:
            zero.append(a)
        else:
            negative.append(a)
    positive.sort(reverse=True)
    negative.sort()
    ans = 1
    num_used = 0
    num_used_negative = 0

    if len(positive) + len(negative) < K:
        print(0)
        return

    necessary_negative = K-len(positive)
    if len(positive) >= K or necessary_negative %2 == 0:

        if len(positive) >= 2:
            comp = positive[0] * positive[1]
        else:
            comp = positive[0]
        
        for i in range(0,min(len(negative)//2,K//2)):
            if negative[i*2] * negative[i*2+1] >= comp or num_used + len(positive) < K:
                ans = ans * negative[i*2] * negative[i*2+1] % P
                num_used += 2
            else:
                break
        for i in range(K-num_used):
            ans = ans * positive[i] % P
            num_used += 1
        print(ans)
        return
    else:

        #答えが負
        if zero:
            print(0)
            return
        ans = 1
        for a in positive:
            ans = ans * a % P
        negative = negative[::-1]
        for i in range(K-len(positive)):
            ans = ans * negative[i] % P
        print(ans)
        return
                



    
main()

Fixed submission:
def main():
    from sys import setrecursionlimit, stdin, stderr
    from os import environ
    from collections import defaultdict, deque, Counter
    from math import ceil, floor
    from itertools import accumulate, combinations, combinations_with_replacement
    setrecursionlimit(10**6)
    
    dbg = (lambda *something: stderr.write("\033[92m{}\033[0m".format(str(something)+'\n'))) if 'TERM_PROGRAM' in environ else lambda *x: 0
    input = lambda: stdin.readline().rstrip()
    LMIIS = lambda: list(map(int,input().split()))
    II = lambda: int(input())
    P = 10**9+7
    multimul = lambda L,i=0: (L[i] * multimul(L,i+1) % P  if i+1 < len(L) else  L[i])
    INF = 10**18+10

    N,K = LMIIS()
    A = LMIIS()
    
    if N == K:
        print(multimul(A))
        return
    not_negative = []
    negative = []
    for a in A:
        if a < 0:
            negative.append(a)
        else:
            not_negative.append(a)
    if len(negative) == N and K % 2 == 1:
        print(multimul(sorted(negative,reverse=True)[:K]))
        return
    not_negative.sort(reverse=True)

    not_negative = deque(not_negative)
    negative.sort()
    negative = deque(negative)
    ans = 1
    num_multiplied = 0
    while num_multiplied < K:
        if num_multiplied == K-1 or len(negative) < 2 or len(not_negative) >= 2 and not_negative[0] * not_negative[1] > negative[0] * negative[1]:
            ans = ans * not_negative.popleft() % P
            num_multiplied += 1
        else:
            ans = ans * negative.popleft() * negative.popleft() % P
            num_multiplied += 2
    print(ans)
            


    
main()

Buggy python submission (verdict: Runtime Error):
def main():
    from sys import setrecursionlimit, stdin, stderr
    from os import environ
    from collections import defaultdict, deque, Counter
    from math import ceil, floor
    from itertools import accumulate, combinations, combinations_with_replacement
    setrecursionlimit(10**6)
    dbg = (lambda *something: stderr.write("\033[92m{}\033[0m".format(str(something)+'\n'))) if 'TERM_PROGRAM' in environ else lambda *x: 0
    input = lambda: stdin.readline().rstrip()
    LMIIS = lambda: list(map(int,input().split()))
    II = lambda: int(input())
    P = 10**9+7
    INF = 10**18+10

    N,K = LMIIS()
    A = LMIIS()
    positive = []
    negative = []
    zero = []
    for a in A:
        if a >0:
            positive.append(a)
        elif a == 0:
            zero.append(a)
        else:
            negative.append(a)
    positive.sort(reverse=True)
    negative.sort()
    ans = 1
    num_used = 0
    num_used_negative = 0

    if len(positive) + len(negative) < K:
        print(0)
        return

    necessary_negative = K-len(positive)
    if len(positive) >= K or necessary_negative %2 == 0:

        if len(positive) >= 2:
            comp = positive[0] * positive[1]
        else:
            comp = positive[0]
        
        for i in range(0,min(len(negative)//2,K//2)):
            if negative[i*2] * negative[i*2+1] >= comp or num_used + len(positive) < K:
                ans = ans * negative[i] * negative[i+1] % P
                num_used += 2
            else:
                break
        for i in range(K-num_used):
            ans = ans * positive[i] % P
            num_used += 1
        print(ans)
        return
    else:

        #答えが負
        if zero:
            print(0)
            return
        ans = 1
        for a in positive:
            ans = ans * a % P
        negative = negative[::-1]
        for i in range(K-len(positive)):
            ans = ans * negative[i] % P
        print(ans)
        return
                



    
main()

Fixed submission:
def main():
    from sys import setrecursionlimit, stdin, stderr
    from os import environ
    from collections import defaultdict, deque, Counter
    from math import ceil, floor
    from itertools import accumulate, combinations, combinations_with_replacement
    setrecursionlimit(10**6)
    
    dbg = (lambda *something: stderr.write("\033[92m{}\033[0m".format(str(something)+'\n'))) if 'TERM_PROGRAM' in environ else lambda *x: 0
    input = lambda: stdin.readline().rstrip()
    LMIIS = lambda: list(map(int,input().split()))
    II = lambda: int(input())
    P = 10**9+7
    multimul = lambda L,i=0: (L[i] * multimul(L,i+1) % P  if i+1 < len(L) else  L[i])
    INF = 10**18+10

    N,K = LMIIS()
    A = LMIIS()
    
    if N == K:
        print(multimul(A))
        return
    not_negative = []
    negative = []
    for a in A:
        if a < 0:
            negative.append(a)
        else:
            not_negative.append(a)
    if len(negative) == N and K % 2 == 1:
        print(multimul(sorted(negative,reverse=True)[:K]))
        return
    not_negative.sort(reverse=True)

    not_negative = deque(not_negative)
    negative.sort()
    negative = deque(negative)
    ans = 1
    num_multiplied = 0
    while num_multiplied < K:
        if num_multiplied == K-1 or len(negative) < 2 or len(not_negative) >= 2 and not_negative[0] * not_negative[1] > negative[0] * negative[1]:
            ans = ans * not_negative.popleft() % P
            num_multiplied += 1
        else:
            ans = ans * negative.popleft() * negative.popleft() % P
            num_multiplied += 2
    print(ans)
            


    
main()

Buggy python submission (verdict: Runtime Error):
def main():
    from sys import setrecursionlimit, stdin, stderr
    from os import environ
    from collections import defaultdict, deque, Counter
    from math import ceil, floor
    from itertools import accumulate, combinations, combinations_with_replacement
    setrecursionlimit(10**6)
    dbg = (lambda *something: stderr.write("\033[92m{}\033[0m".format(str(something)+'\n'))) if 'TERM_PROGRAM' in environ else lambda *x: 0
    input = lambda: stdin.readline().rstrip()
    LMIIS = lambda: list(map(int,input().split()))
    II = lambda: int(input())
    P = 10**9+7
    INF = 10**18+10

    N,K = LMIIS()
    A = LMIIS()
    positive = []
    negative = []
    zero = []
    for a in A:
        if a >0:
            positive.append(a)
        elif a == 0:
            zero.append(a)
        else:
            negative.append(a)
    positive.sort(reverse=True)
    negative.sort()
    ans = 1
    num_used = 0
    num_used_negative = 0

    if len(positive) + len(negative) < K:
        print(0)
        return

    if len(positive) >= K or (K-len(positive))%2 == 0:

        if len(positive) >= 2:
            comp = positive[0] * positive[1]
        else:
            comp = positive[0]
        
        for i in range(0,min(len(negative),K//2),2):
            if negative[i] * negative[i+1] >= comp:
                ans = ans * negative[i] * negative[i+1] % P
                num_used += 2
                num_used_negative += 1
            else:
                break
        for i in range(K-num_used):
            ans = ans * positive[i] % P
            num_used += 1
        print(ans)
        return
    else:

        #答えが負
        if zero:
            print(0)
            return
        ans = 1
        for a in positive:
            ans = ans * a % P
        negative = negative[::-1]
        for i in range(K-len(positive)):
            ans = ans * negative[i] % P
        print(ans)
        return
                



    
main()

Fixed submission:
def main():
    from sys import setrecursionlimit, stdin, stderr
    from os import environ
    from collections import defaultdict, deque, Counter
    from math import ceil, floor
    from itertools import accumulate, combinations, combinations_with_replacement
    setrecursionlimit(10**6)
    
    dbg = (lambda *something: stderr.write("\033[92m{}\033[0m".format(str(something)+'\n'))) if 'TERM_PROGRAM' in environ else lambda *x: 0
    input = lambda: stdin.readline().rstrip()
    LMIIS = lambda: list(map(int,input().split()))
    II = lambda: int(input())
    P = 10**9+7
    multimul = lambda L,i=0: (L[i] * multimul(L,i+1) % P  if i+1 < len(L) else  L[i])
    INF = 10**18+10

    N,K = LMIIS()
    A = LMIIS()
    
    if N == K:
        print(multimul(A))
        return
    not_negative = []
    negative = []
    for a in A:
        if a < 0:
            negative.append(a)
        else:
            not_negative.append(a)
    if len(negative) == N and K % 2 == 1:
        print(multimul(sorted(negative,reverse=True)[:K]))
        return
    not_negative.sort(reverse=True)

    not_negative = deque(not_negative)
    negative.sort()
    negative = deque(negative)
    ans = 1
    num_multiplied = 0
    while num_multiplied < K:
        if num_multiplied == K-1 or len(negative) < 2 or len(not_negative) >= 2 and not_negative[0] * not_negative[1] > negative[0] * negative[1]:
            ans = ans * not_negative.popleft() % P
            num_multiplied += 1
        else:
            ans = ans * negative.popleft() * negative.popleft() % P
            num_multiplied += 2
    print(ans)
            


    
main()