Buggy python submission (verdict: Time Limit Exceeded):
def kakko(S):
    cum = 0
    mi = 0
    for s in S:
        cum += 1 if s == '(' else -1
        mi = min(mi, cum)
    return (-mi, cum - mi)

N = int(input())
S = [kakko(input()) for _ in range(N)]

plus = []
minus = []

for l, r in S:
    if l <= r:
        plus.append((l, r))
    else:
        minus.append((l, r))

plus.sort(key=lambda a: a[0])
minus.sort(key=lambda a: a[1], reverse=True)
M = 0
for l, r in (plus + minus):
    M -= l
    if M < 0:
        print('No')
        exit()
    M += r

print('Yes' if M == 0 else 'No')


Fixed submission:
N = int(input())
S = [input() for _ in range(N)]

def calc(T):
    now = 0
    ret = 0
    for s in T:
        if s == '(':
            now += 1
        elif s == ')':
            now -= 1
        ret = min(ret, now)
    return ret

H = []
P = []
L = []

for s in S:
    less = -calc(s)
    if less == 0:
        H.append(s)
    else:
        l = s.count('(')
        r = len(s) - l
        if l >= r:
            P.append((less, s))
        else:
            L.append((less - (r - l), s))

P.sort(key=lambda a: a[0])
L.sort(key=lambda a: a[0], reverse=True)
P = [s for _, s in P]
L = [s for _, s in L]
ans = ''.join(H) + ''.join(P) + ''.join(L)

l = ans.count('(')
r = len(ans) - l

if l != r or calc(ans) < 0:
    print('No')
else:
    print('Yes')

Buggy python submission (verdict: Time Limit Exceeded):
def hoge(S):
    cum = 0
    mi = 0
    for s in S:
        cum += 1 if s == '(' else -1
        mi = min(mi, cum)
    return (-mi, cum - mi)

N = int(input())
S = [hoge(input()) for _ in range(N)]

plus = []
minus = []

for l, r in S:
    if l <= r:
        plus.append((l, r))
    else:
        minus.append((l, r))

plus.sort(key=lambda a: a[0])
minus.sort(key=lambda a: a[1], reverse=True)
M = 0
for l, r in (plus + minus):
    M -= l
    if M < 0:
        print('No')
        exit()
    M += r

print('Yes' if M == 0 else 'No')


Fixed submission:
N = int(input())
S = [input() for _ in range(N)]

def calc(T):
    now = 0
    ret = 0
    for s in T:
        if s == '(':
            now += 1
        elif s == ')':
            now -= 1
        ret = min(ret, now)
    return ret

H = []
P = []
L = []

for s in S:
    less = -calc(s)
    if less == 0:
        H.append(s)
    else:
        l = s.count('(')
        r = len(s) - l
        if l >= r:
            P.append((less, s))
        else:
            L.append((less - (r - l), s))

P.sort(key=lambda a: a[0])
L.sort(key=lambda a: a[0], reverse=True)
P = [s for _, s in P]
L = [s for _, s in L]
ans = ''.join(H) + ''.join(P) + ''.join(L)

l = ans.count('(')
r = len(ans) - l

if l != r or calc(ans) < 0:
    print('No')
else:
    print('Yes')

Buggy python submission (verdict: Runtime Error):
import sys
input = sys.stdin.readline

N = int(input())
S = [input().rstrip() for _ in range(N)]

def calc(S):
    now = 0
    ret = 0
    for s in S:
        if s == '(':
            now += 1
        else:
            now -= 1
        ret = min(ret, now)
    return ret

H = []
P = []
L = []

for s in S:
    less = -calc(s)
    if less == 0:
        H.append(s)
    else:
        l = s.count('(')
        r = len(s) - l
        if l >= r:
            P.append((less, s))
        else:
            L.append((less, s))

P.sort(key=lambda a: a[0])
L.sort(key=lambda a: a[0], reverse=True)
P = [s for _, s in P]
L = [s for _, s in L]

ans = ''.join(H + P + L)
l = ans.count('(')
r = ans.count(')')

if l == r and calc(ans) == 0:
    assert 0
    print('Yes')
else:
    print('No')


Fixed submission:
N = int(input())
S = [input() for _ in range(N)]

def calc(T):
    now = 0
    ret = 0
    for s in T:
        if s == '(':
            now += 1
        elif s == ')':
            now -= 1
        ret = min(ret, now)
    return ret

H = []
P = []
L = []

for s in S:
    less = -calc(s)
    if less == 0:
        H.append(s)
    else:
        l = s.count('(')
        r = len(s) - l
        if l >= r:
            P.append((less, s))
        else:
            L.append((less - (r - l), s))

P.sort(key=lambda a: a[0])
L.sort(key=lambda a: a[0], reverse=True)
P = [s for _, s in P]
L = [s for _, s in L]
ans = ''.join(H) + ''.join(P) + ''.join(L)

l = ans.count('(')
r = len(ans) - l

if l != r or calc(ans) < 0:
    print('No')
else:
    print('Yes')

Buggy python submission (verdict: Runtime Error):
import sys
input = sys.stdin.readline

N = int(input())
S = [input().rstrip() for _ in range(N)]

def calc(S):
    now = 0
    ret = 0
    for s in S:
        if s == '(':
            now += 1
        else:
            now -= 1
        ret = min(ret, now)
    return ret

H = []
P = []
L = []

for s in S:
    less = -calc(s)
    if less == 0:
        H.append(s)
    else:
        l = s.count('(')
        r = len(s) - l
        if l >= r:
            P.append((less, s))
        else:
            L.append((less, s))

P.sort(key=lambda a: a[0])
L.sort(key=lambda a: a[0], reverse=True)
P = [s for _, s in P]
L = [s for _, s in L]

ans = ''.join(H + P + L)
l = ans.count('(')
r = ans.count(')')

if l == r and calc(ans) == 0:
    print('Yes')
else:
    assert 0
    print('No')


Fixed submission:
N = int(input())
S = [input() for _ in range(N)]

def calc(T):
    now = 0
    ret = 0
    for s in T:
        if s == '(':
            now += 1
        elif s == ')':
            now -= 1
        ret = min(ret, now)
    return ret

H = []
P = []
L = []

for s in S:
    less = -calc(s)
    if less == 0:
        H.append(s)
    else:
        l = s.count('(')
        r = len(s) - l
        if l >= r:
            P.append((less, s))
        else:
            L.append((less - (r - l), s))

P.sort(key=lambda a: a[0])
L.sort(key=lambda a: a[0], reverse=True)
P = [s for _, s in P]
L = [s for _, s in L]
ans = ''.join(H) + ''.join(P) + ''.join(L)

l = ans.count('(')
r = len(ans) - l

if l != r or calc(ans) < 0:
    print('No')
else:
    print('Yes')