Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Runtime Error):
N = int(input())
X = list(map(int, input().strip()))

count_j = X.count(1)

def calc_table(m):
	if m == 1:
		return [0] * N
	elif m == 0:
		return None
	table = []
	x = 1
	for i in range(N):
		table.append(x)
		x = (x * 2) % m
	table.reverse()
	return table

count_m = count_j - 1
count_p = count_j + 1

mod_m = calc_table(count_m)
mod_j = calc_table(count_j)
mod_p = calc_table(count_p)

original_j = 0
original_m = 0
original_p = 0
for i, b in enumerate(X):
	if b == 1:
		original_j = (original_j + mod_j[i]) % count_j
		original_m = (original_m + mod_m[i]) % count_m
		original_p = (original_p + mod_p[i]) % count_p

#print(mod_p)
#print(original_m, original_j, original_p)

f_cache = [None] * N
def calc_f(x):
	if x == 0:
		return 0
	f = f_cache[x]
	if f != None:
		return f
	count = 0
	i = x
	while i > 0:
		if i % 2 == 1:
			count += 1
		i //= 2
	f = calc_f(x % count) + 1
	f_cache[x] = f
	return f

for i, b in enumerate(X):
	if b == 0:
		x = (original_p + mod_p[i]) % count_p
	else:
		x = (original_m - mod_m[i]) % count_m
	print(calc_f(x) + 1)


Fixed submission:
N = int(input())
X = list(map(int, input().strip()))

count_j = X.count(1)

def calc_table(m):
	if m == 1:
		return [0] * N
	elif m == 0:
		return None
	table = []
	x = 1
	for i in range(N):
		table.append(x)
		x = (x * 2) % m
	table.reverse()
	return table

count_m = count_j - 1
count_p = count_j + 1

mod_m = calc_table(count_m)
mod_j = calc_table(count_j)
mod_p = calc_table(count_p)

original_j = 0
original_m = 0
original_p = 0
if count_m > 0:
	for i, b in enumerate(X):
		if b == 1:
			original_j = (original_j + mod_j[i]) % count_j
			original_m = (original_m + mod_m[i]) % count_m
			original_p = (original_p + mod_p[i]) % count_p
else:
	for i, b in enumerate(X):
		if b == 1:
			original_j = (original_j + mod_j[i]) % count_j
			original_p = (original_p + mod_p[i]) % count_p
#print(mod_p)
#print(original_m, original_j, original_p)

f_cache = [None] * N
def calc_f(x):
	if x == 0:
		return 0
	f = f_cache[x]
	if f != None:
		return f
	count = 0
	i = x
	while i > 0:
		if i % 2 == 1:
			count += 1
		i //= 2
	f = calc_f(x % count) + 1
	f_cache[x] = f
	return f

for i, b in enumerate(X):
	if b == 0:
		x = (original_p + mod_p[i]) % count_p
		print(calc_f(x) + 1)
	else:
		if count_m > 0:
			x = (original_m - mod_m[i]) % count_m
			print(calc_f(x) + 1)
		else:
			print(0)
Buggy python submission (verdict: Time Limit Exceeded):
import heapq

N, K = map(int, input().split())

data = list(map(int, input().split()))

for x in range(K):
#	print(data)
	raise_queue = []
	down_queue = []
	for i, d in enumerate(data):
		heapq.heappush(raise_queue, (i - d, i + d))
	
	new_data = [0] * N
	height = 0
	ended = 0
	for i in range(N):
		while len(raise_queue) > 0 and raise_queue[0][0] <= i:
			height += 1
			heapq.heappush(down_queue, raise_queue[0][1])
			heapq.heappop(raise_queue)
		while len(down_queue) > 0 and down_queue[0] < i:
			height -= 1
			heapq.heappop(down_queue)
		
		new_data[i] = height
		if height == N:
			ended += 1
	
	data = new_data
	if ended == N:
		#print(x)
		break
	
print(*data)


Fixed submission:
N, K = map(int, input().split())

data = list(map(int, input().split()))

for x in range(K):
#	print(data)
	raise_data = [0] * (N + 1)
	for i, d in enumerate(data):
		raise_data[max(0, i - d)] += 1
		raise_data[min(N, i + d + 1)] -= 1
	
	height = 0
	ended = 0
	for i in range(N):
		height += raise_data[i]
		data[i] = height
		if height == N:
			ended += 1
	
	if ended == N:
#		print(x)
		break
	
print(*data)
Buggy python submission (verdict: Time Limit Exceeded):
from heapq import heappush, heappop

N, D, A = map(int, input().split())

data = []
for _ in range(N):
	x, h = map(int, input().split())
	heappush(data, (x, 0, h))

total = 0
height = 0
while data:
	x, type, h = heappop(data)
	if type == 0:
		if height < h:
			count = (h - height + A - 1) // A
			total += count
			height += count * A
			heappush(data, (x + D * 2, 1, count * A))
	else:
		height -= h

print(total)


Fixed submission:
N, D, A = map(int, input().split())

data = []
for _ in range(N):
	data.append(tuple(map(int, input().split())))

data.sort()

queue = []
i = 0
j = 0
total = 0
height = 0
while i < N:
	if j >= len(queue) or data[i][0] <= queue[j][0]:
		x, h = data[i]
		i += 1
		if height < h:
			count = (h - height + A - 1) // A
			total += count
			height += count * A
			queue.append((x + D * 2, count * A))
	else:
		height -= queue[j][1]
		j += 1

print(total)
Buggy python submission (verdict: Time Limit Exceeded):
def calc_gcm(a, b):
	if a > b:
		r = a % b
		a = r
	
	while a > 0:
		r = b % a
		b = a
		a = r
	
	return b

def calc_lcm(a, b):
	gcm = calc_gcm(a, b)
	return a * b // gcm

N, M = map(int, input().split())
a_list = list(map(int, input().split()))

lcm = 1
for a in a_list:
	lcm = calc_lcm(lcm, a)

def check():
	for a in a_list:
		if (lcm // a) % 2 == 0:
			return False
	return True

if check():
	lcm //= 2
	count = M // lcm + 1
	print(count // 2)
else:
	print(0)


Fixed submission:
def calc_gcm(a, b):
	if a > b:
		r = a % b
		a = r
	
	while a > 0:
		r = b % a
		b = a
		a = r
	
	return b

def calc_lcm(a, b):
	gcm = calc_gcm(a, b)
	return a * b // gcm

N, M = map(int, input().split())
a_list = list(map(int, input().split()))

lcm = 1
for a in a_list:
	lcm = calc_lcm(lcm, a)
	if lcm > 2 * M:
		lcm = 0
		break

def check():
	for a in a_list:
		if (lcm // a) % 2 == 0:
			return False
	return True

if lcm == 0:
	print(0)
elif check():
	lcm //= 2
	count = M // lcm + 1
	print(count // 2)
else:
	print(0)

Buggy python submission (verdict: Time Limit Exceeded):
def calc_gcm(a, b):
	if a > b:
		r = a % b
		a = r
	
	while a > 0:
		r = b % a
		b = a
		a = r
	
	return b

def calc_lcm(a, b):
	gcm = calc_gcm(a, b)
	return a * b // gcm

N, M = map(int, input().split())
a_list = list(map(int, input().split()))

lcm = 1
for a in a_list:
	lcm = calc_lcm(lcm, a)

def check():
	for a in a_list:
		if (lcm // a) % 2 == 0:
			return False
	return True

if check():
	lcm //= 2
	count = M // lcm + 1
	print(count // 2)
else:
	print(0)


Fixed submission:
def calc_gcm(a, b):
	if a > b:
		r = a % b
		a = r
	
	while a > 0:
		r = b % a
		b = a
		a = r
	
	return b

def calc_lcm(a, b):
	gcm = calc_gcm(a, b)
	return a * b // gcm

N, M = map(int, input().split())
a_list = list(map(int, input().split()))

lcm = 1
for a in a_list:
	lcm = calc_lcm(lcm, a)
	if lcm > 2 * M:
		lcm = 0
		break

def check():
	for a in a_list:
		if (lcm // a) % 2 == 0:
			return False
	return True

if lcm == 0:
	print(0)
elif check():
	lcm //= 2
	count = M // lcm + 1
	print(count // 2)
else:
	print(0)
Buggy python submission (verdict: Runtime Error):
N, u, v = map(int, input().split())
u -= 1
v -= 1

e_list = [[] for _ in range(N)]

for _ in range(N - 1):
	a, b = map(int, input().split())
	a -= 1
	b -= 1
	e_list[a].append(b)
	e_list[b].append(a)

def calc_depth_table(v):
	queue = [[v, None, 0]]
	depth_table = [0] * N
	depth_table[v] = 0
	
	while queue:
		cur, pre, depth = queue.pop()
		depth += 1
		for n in e_list[cur]:
			if n != pre:
				queue.append([n, cur, depth])
				depth_table[n] = depth
	return depth_table

def calc_depth_table2(depth_from_v, u):
	queue = [[u, None, 0, depth_from_v[u], u]]
	depth_table = [0] * N
	depth_table[u] = (0, depth_from_v[u], u)
	
	while queue:
		cur, pre, depth, min_depth_from_v, min_depth_point = queue.pop()
		depth += 1
		for n in e_list[cur]:
			if n != pre:
				depth2 = depth_from_v[n]
				if min_depth_from_v > depth2:
					new_min_depth = depth2
					new_min_depth_point = n
				else:
					new_min_depth = min_depth_from_v
					new_min_depth_point = min_depth_point
				queue.append([n, cur, depth, new_min_depth, new_min_depth_point])
				depth_table[n] = (depth, new_min_depth, new_min_depth_point)
	return depth_table

depth_from_v = calc_depth_table(v)
depth_from_u = calc_depth_table2(depth_from_v, u)

#print(depth_from_v)
#print(depth_from_u)

max_count = 0
for i in range(N):
	a_dist = depth_from_v[i]
	t_dist, a_hit_dist, hit_pos = depth_from_u[i]
	t_hit_dist = depth_from_u[hit_pos][0]
	
#	print(t_hit_dist, a_hit_dist)
	if t_hit_dist < a_hit_dist:
#		print(t_hit_dist, a_hit_dist)
#		if (a_hit_dist - t_hit_dist) % 2 == 1:
		if max_count < a_dist - 1:
			max_count = a_dist - 1
#			else:
#				

print(max_count)


Fixed submission:
answers = ["1", "2", "3"]
answers.remove(input().strip())
answers.remove(input().strip())
print(answers[0])
Buggy python submission (verdict: Time Limit Exceeded):
import re

N = int(input())
S = input().strip()

count = 0
for c1 in range(10):
	for c2 in range(10):
		for c3 in range(10):
			if re.search("{}.*{}.*{}".format(c1, c2, c3), S):
				count += 1
print(count)



Fixed submission:
import re

N = int(input())
S = [int(c) for c in input().strip()]
length = len(S)

count = 0
for c1 in range(10):
	index1 = 0
	while index1 < length:
		if S[index1] == c1:
			index1 += 1
			break
		index1 += 1
	if index1 < length:
		for c2 in range(10):
			index2 = index1
			while index2 < length:
				if S[index2] == c2:
					index2 += 1
					break
				index2 += 1
			if index2 < length:
				for c3 in range(10):
					index3 = index2
					while index3 < length:
						if S[index3] == c3:
							count += 1
							break
						index3 += 1
print(count)

Buggy python submission (verdict: Runtime Error):
import re

N = int(input())
S = input().strip()

count = 0
for c1 in range(10):
	for c2 in range(10):
		for c3 in range(10):
			if re.search(f"{c1}.*{c2}.*{c3}", S):
				count += 1
print(count)



Fixed submission:
import re

N = int(input())
S = [int(c) for c in input().strip()]
length = len(S)

count = 0
for c1 in range(10):
	index1 = 0
	while index1 < length:
		if S[index1] == c1:
			index1 += 1
			break
		index1 += 1
	if index1 < length:
		for c2 in range(10):
			index2 = index1
			while index2 < length:
				if S[index2] == c2:
					index2 += 1
					break
				index2 += 1
			if index2 < length:
				for c3 in range(10):
					index3 = index2
					while index3 < length:
						if S[index3] == c3:
							count += 1
							break
						index3 += 1
print(count)
Buggy python submission (verdict: Runtime Error):
M = 998244353

N = int(input())
d_list = list(map(int, input().split()))
d_list.sort()

def fact(n):
	f = 1
	for i in range(2, n + 1):
		f = (f * i) % M
	return f

def check():
	d = d_list.pop(0)
	if d != 0:
		print(0)
	else:
		if d_list[0] == 0:
			print(0)
		else:
			d_counts = [1]
			prev_d = 0
			for d in d_list:
				if prev_d == d:
					d_counts[prev_d] += 1
				elif prev_d + 1 == d:
					d_counts.append(1)
					prev_d = d
				else:
					print(0)
					return
		count = 1
		prev_d = d_counts.pop(0)
		for d in d_counts:
			count = (count * pow(prev_d, d)) % M
			prev_d = d
		print(count)

check()


Fixed submission:
M = 998244353

N = int(input())
d_list = list(map(int, input().split()))

def check():
	if d_list[0] != 0:
		print(0)
		return
	d_list.sort()
	d_counts = []
	prev_d = -1
	for d in d_list:
		if prev_d == d:
			d_counts[prev_d] += 1
		elif prev_d + 1 == d:
			d_counts.append(1)
			prev_d = d
		else:
			print(0)
			return
	count = 1
	prev_c = d_counts.pop(0)
	if prev_c != 1:
		print(0)
	else:
		for c in d_counts:
			count = (count * pow(prev_c, c, M)) % M
			prev_c = c
		print(count)

check()
Buggy python submission (verdict: Time Limit Exceeded):
import math

N, K = map(int, input().strip().split())

A_list = list(map(int, input().strip().split()))
F_list = list(map(int, input().strip().split()))

A_list.sort()
F_list.sort()
F_list.reverse()

def check(score):
	k = K
	for a, f in zip(A_list, F_list):
		if a * f > score:
			t = math.floor(score / f)
			k -= a - t
			if k < 0:
				return False
	return True

score_min = 0
score_max = (10 ** 6) * (10 ** 6) * (10 ** 5)
while score_min < score_max:
	score = (score_max + score_min) // 2
	if check(score):
		score_max = score
	else:
		score_min = score + 1

print(score_min)


Fixed submission:
import math

N, K = map(int, input().strip().split())

A_list = list(map(int, input().strip().split()))
F_list = list(map(int, input().strip().split()))

A_list.sort()
F_list.sort()
F_list.reverse()

def check(score):
	k = K
	for a, f in zip(A_list, F_list):
		if a * f > score:
			t = math.floor(score / f)
			k -= a - t
			if k < 0:
				return False
	return True

score_min = 0
score_max = (10 ** 6) * (10 ** 6) * (10 ** 5)
while score_min < score_max:
	score = (score_max + score_min) // 2
	if check(score):
		score_max = score
	else:
		score_min = score + 1

print(score_min)
Buggy python submission (verdict: Time Limit Exceeded):
N = int(input())
graph = []
for _ in range(N):
	graph.append(list(map(int, input().strip())))

def check(graph):
	queue = [0]
	dists = [None] * N
	dists[0] = 0
	while queue:
		cur = queue.pop()
		dist = dists[cur] + 1
		col = graph[cur]
		for i in range(N):
			c = col[i]
			if c == 1:
				d = dists[i]
				if d == None:
					dists[i] = dist
					queue.append(i)
				else:
					if d % 2 != dist %2:
						return False
					elif d > dist:
						dists[i] = dist
						queue.append(i)
	return True

def search(graph, start):
	queue = [start]
	dists = [None] * N
	dists[start] = 0
	while queue:
		cur = queue.pop()
		dist = dists[cur] + 1
		col = graph[cur]
		for i in range(N):
			c = col[i]
			if c == 1:
				d = dists[i]
				if d == None or d > dist:
					dists[i] = dist
					queue.append(i)
	return max(dists)

if check(graph):
	diam = 0
	for i in range(N):
		d = search(graph, i)
		if d > diam:
			diam = d
	print(diam + 1)
else:
	print(-1)


Fixed submission:
N = int(input())
graph = []
for _ in range(N):
	graph.append(list(map(int, input().strip())))

def check(graph):
	queue = [0]
	dists = [None] * N
	dists[0] = 0
	while queue:
		cur = queue.pop()
		dist = dists[cur] + 1
		col = graph[cur]
		for i in range(N):
			c = col[i]
			if c == 1:
				d = dists[i]
				if d == None:
					dists[i] = dist
					queue.append(i)
				else:
					if d % 2 != dist %2:
						return False
					elif d > dist:
						dists[i] = dist
						queue.append(i)
	return True

def search(graph, start):
	queue = [start]
	dists = [None] * N
	dists[start] = 0
	while queue:
		cur = queue.pop()
		dist = dists[cur] + 1
		col = graph[cur]
		for i in range(N):
			c = col[i]
			if c == 1:
				d = dists[i]
				if d == None or d > dist:
					dists[i] = dist
					queue.append(i)
	return max(dists)

if check(graph):
	diam = 0
	for i in range(N):
		d = search(graph, i)
		if d > diam:
			diam = d
	print(diam + 1)
else:
	print(-1)
Buggy python submission (verdict: Time Limit Exceeded):
import math

A, B = list(map(int, input().strip().split()))

def decompose(n):
	result = []
	
	i = 2
	while i <= n:
		if n % i == 0:
			result.append(i)
			n //= i
		else:
			i += 1
	return result

def calc_gcm(a, b):
	if a > b:
		r = a % b
		a = r
	
	while a > 0:
		r = b % a
		b = a
		a = r
	
	return b

primes = decompose(calc_gcm(A, B))
count = 1
prev = 0
for p in primes:
	if prev != p:
		count += 1
	prev = p
print(count)


Fixed submission:
import math

A, B = list(map(int, input().strip().split()))

def decompose(n):
	result = []
	
	i = 2
	n2 = math.floor(math.sqrt(n)) + 1
	while i <= n2:
		if n % i == 0:
			result.append(i)
			n //= i
			n2 = math.floor(math.sqrt(n)) + 1
		else:
			i += 1
	if n > 1:
		result.append(n)
	return result

def calc_gcm(a, b):
	if a > b:
		r = a % b
		a = r
	
	while a > 0:
		r = b % a
		b = a
		a = r
	
	return b

primes = decompose(calc_gcm(A, B))
count = 1
prev = 0
for p in primes:
	if prev != p:
		count += 1
	prev = p
print(count)
Buggy python submission (verdict: Time Limit Exceeded):
s = input().strip()
t = input().strip()

ti = 0
si = 0
tl = len(t)
sl = len(s)
count = 0
found = False
while ti < tl:
	if s[si] == t[ti]:
#		print(s[si])
		si += 1
		ti += 1
		found = True
	else:
		si += 1
	if si == sl:
		if not found:
			count = -1
			break
		si = 0
		found = False
	count += 1
print(count)


Fixed submission:
a_code = ord("a")

s = [ord(c) - a_code for c in input().strip()]
t = [ord(c) - a_code for c in input().strip()]

tl = len(t)
sl = len(s)

s_table = [None] * sl
index_table = [None] * 26
for i in range(sl - 1, -1, -1):
	c = s[i]
	index_table[c] = i
	s_table[i] = list(index_table)

ti = 0
si = 0
count = 0
found = False
while ti < tl:
	c = t[ti]
	index = s_table[si][c]
	if index != None:
		ti += 1
		count += index + 1 - si
		si = index + 1
		found = True
		if si >= sl:
			if not found:
				count = -1
				break
			found = False
			si = 0
	else:
		if not found:
			count = -1
			break
		found = False
		count += sl - si
		si = 0
print(count)

Buggy python submission (verdict: Runtime Error):
s = input().strip()
t = input().strip()

ti = 0
si = 0
tl = len(t)
sl = len(s)
count = 0
found = False
while ti < tl:
	if s[si] == t[ti]:
#		print(s[si])
		si += 1
		ti += 1
		found = True
	else:
		si += 1
		if si == sl:
			if not found:
				count = -1
				break
			si = 0
			found = False
	count += 1
print(count)


Fixed submission:
a_code = ord("a")

s = [ord(c) - a_code for c in input().strip()]
t = [ord(c) - a_code for c in input().strip()]

tl = len(t)
sl = len(s)

s_table = [None] * sl
index_table = [None] * 26
for i in range(sl - 1, -1, -1):
	c = s[i]
	index_table[c] = i
	s_table[i] = list(index_table)

ti = 0
si = 0
count = 0
found = False
while ti < tl:
	c = t[ti]
	index = s_table[si][c]
	if index != None:
		ti += 1
		count += index + 1 - si
		si = index + 1
		found = True
		if si >= sl:
			if not found:
				count = -1
				break
			found = False
			si = 0
	else:
		if not found:
			count = -1
			break
		found = False
		count += sl - si
		si = 0
print(count)
Buggy python submission (verdict: Runtime Error):
N, A, B, C, D = map(int, input().split())
S = input()

A -= 1
B -= 1
C -= 1
D -= 1

def check2():
	for i in range(A, C - 1):
		if S[i] == S[i + 1] == "#":
			return False
	
	if D < C:
		for i in range(B, D):
			if S[i - 1] == S[i] == S[i + 1] == ".":
				return True
		return False
	else:
		return True

if check():
	print("Yes")
else:
	print("No")


Fixed submission:
N, A, B, C, D = map(int, input().split())
S = input()

A -= 1
B -= 1
C -= 1
D -= 1

def check():
	for i in range(A + 1, C - 1):
		if S[i] == S[i + 1] == "#":
			return False

	for i in range(B + 1, D - 1):
		if S[i] == S[i + 1] == "#":
			return False
	
	if D < C:
		for i in range(B, D + 1):
			if S[i - 1] == S[i] == S[i + 1] == ".":
				return True
		return False
	else:
		return True

if check():
	print("Yes")
else:
	print("No")
Buggy python submission (verdict: Time Limit Exceeded):
A = 0
B = 1
C = 2

table = {"A": A, "B": B, "C": C}

s = [table[c] for c in input()]

def count_abcs(i):
	count = 0
	while s[i] == A and s[i + 1] == B and s[i + 2] == C:
		count += 1
		i += 3
		if i >= imax:
			break
	return count

i = 0
imax = len(s) - 2
total = 0
while i < imax:
	count = count_abcs(i)
	if count >= 1:
		total += (count + 1) * count // 2
		for j in range(count):
			s[i + j * 2] = B
			s[i + j * 2 + 1] = C
			s[i + count * 2 + j] = A
		if i > 0:
			i -= 1
	else:
		i += 1

print(total)


Fixed submission:
A = 0
B = 1
C = 2

table = {"A": A, "B": B, "C": C}

s = [table[c] for c in input()]
s.reverse()

total = 0
bc_count = 0
prev = None
for c in s:
	if c == A:
		if prev == C:
			bc_count = 0
		else:
			total += bc_count
	elif c == B:
		if prev == C:
			bc_count += 1
		else:
			bc_count = 0
	elif c == C:
		if prev == C:
			bc_count = 0
	prev = c

print(total)

Buggy python submission (verdict: Time Limit Exceeded):
A = 0
B = 1
C = 2

table = {"A": A, "B": B, "C": C}

s = [table[c] for c in input()]

i = 0
imax = len(s) - 2
count = 0
while i < imax:
	if s[i] == A and s[i + 1] == B and s[i + 2] == C:
		s[i] = B
		s[i + 1] = C
		s[i + 2] = A
		count += 1
		if i > 0:
			i -= 1
	else:
		i += 1

print(count)


Fixed submission:
A = 0
B = 1
C = 2

table = {"A": A, "B": B, "C": C}

s = [table[c] for c in input()]
s.reverse()

total = 0
bc_count = 0
prev = None
for c in s:
	if c == A:
		if prev == C:
			bc_count = 0
		else:
			total += bc_count
	elif c == B:
		if prev == C:
			bc_count += 1
		else:
			bc_count = 0
	elif c == C:
		if prev == C:
			bc_count = 0
	prev = c

print(total)

Buggy python submission (verdict: Time Limit Exceeded):
s = list(input())

i = 0
imax = len(s) - 2
count = 0
while i < imax:
	if s[i] == "A" and s[i + 1] == "B" and s[i + 2] == "C":
		s[i] = "B"
		s[i + 1] = "C"
		s[i + 2] = "A"
		count += 1
		if i > 0:
			i -= 1
	else:
		i += 1

print(count)


Fixed submission:
A = 0
B = 1
C = 2

table = {"A": A, "B": B, "C": C}

s = [table[c] for c in input()]
s.reverse()

total = 0
bc_count = 0
prev = None
for c in s:
	if c == A:
		if prev == C:
			bc_count = 0
		else:
			total += bc_count
	elif c == B:
		if prev == C:
			bc_count += 1
		else:
			bc_count = 0
	elif c == C:
		if prev == C:
			bc_count = 0
	prev = c

print(total)
Buggy python submission (verdict: Runtime Error):
N, M = map(int, input().split(" "))

cards = list(map(int, input().split(" ")))
cards.sort()

replaces = []
for _ in range(M):
	b, c = map(int, input().split(" "))
	replaces.append((c, b))

replaces.sort()
replaces.reverse()

#print(cards)
#print(replaces)

replace_index = 0
for c, b in replaces:
	ended = False
	for i in range(b):
		if cards[replace_index] < c:
			cards[replace_index] = c
			replace_index += 1
		else:
			ended = True
			break
	if ended:
		break

#print(cards)
print(sum(cards))


Fixed submission:
N, M = map(int, input().split(" "))

cards = list(map(int, input().split(" ")))
cards.sort()

replaces = []
for _ in range(M):
	b, c = map(int, input().split(" "))
	replaces.append((c, b))

replaces.sort()
replaces.reverse()

#print(cards)
#print(replaces)

replace_index = 0
for c, b in replaces:
	ended = False
	for i in range(b):
		if replace_index >= N:
			ended = True
			break
		elif cards[replace_index] < c:
			cards[replace_index] = c
			replace_index += 1
		else:
			ended = True
			break
	if ended:
		break

#print(cards)
print(sum(cards))
Buggy python submission (verdict: Time Limit Exceeded):
# -*- coding: utf-8 -*-

from heapq import heappop, heappush
    

def resolve(T,v):
    while v != T[v]:
        v = T[v]
    return v

def solve():
    N, M = map(int, input().split())
    E = set()
    for _ in range(M):
        a, b = map(int, input().split())
        E.add((a-1,b-1))

    T = list(range(N))
    while E:
        e = E.pop()
        u, v = e
        lu = resolve(T,u)
        lv = resolve(T,v)
        if lv == lu:
            continue
        T[lu] = lv
        continue

    return len(set(resolve(T,v) for v in range(N)))-1

if __name__ == '__main__':
    print(solve())



Fixed submission:
# -*- coding: utf-8 -*-

def resolve(T,v):
    lv = v
    while lv != T[lv]:
        lv = T[lv]
    T[v] = lv
    return lv

def solve():
    N, M = map(int, input().split())
    T = list(range(N+1))
    for i in range(M):
        u, v = map(int, input().split())
        lu = resolve(T,u)
        lv = resolve(T,v)
        if lv == lu:
            continue
        T[lv] = lu
        #print(f'===round{i}===')
        #print(T)
        #print([resolve(T,v) for v in range(N+1)])
    return len(set(resolve(T,v) for v in range(1,N+1)))-1

if __name__ == '__main__':
    print(solve())
Buggy python submission (verdict: Runtime Error):
# -*- coding: utf-8 -*-

def solve():
    N,M = map(int,input().split())
    D = dict()
    for _ in range(M):
        s,c = map(int,input().split())
        D[s] = D.get(s,set()) | {c,}

    if not all(len(v)==1 for v in D.values()):
        return '-1'

    if N>1 and D[1] == {0,}:
        return '-1'

    if 1 not in D:
        D[1] = {1,}

    if 2 not in D:
        D[2] = {0,}

    if 3 not in D:
        D[3] = {0,}

    res = sum(D[i+1].pop()*10**(N-i-1) for i in range(N))

    return str(res)

if __name__ == '__main__':
    print(solve())



Fixed submission:
# -*- coding: utf-8 -*-

def solve():
    N,M = map(int,input().split())
    D = dict()
    for _ in range(M):
        s,c = map(int,input().split())
        if s in D and D[s] != c:
            return '-1'
        else:
            D[s] = c

    if N==1 and (M==0 or (1 in D and D[1] == 0)):
        return '0'

    if N>1 and 1 in D and D[1] == 0:
        return '-1'

    if 1 not in D:
        D[1] = 1

    if 2 not in D:
        D[2] = 0

    if 3 not in D:
        D[3] = 0

    res = sum(D[i+1]*10**(N-i-1) for i in range(N))

    return str(res)

if __name__ == '__main__':
    print(solve())