Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Runtime Error):
n = int(input())
lis = []
for i in range(n):
    s,p = list(input().split())
    lis.append([i+1,s,int(p)])
t = sorted(lis, key=lambda x: -x[2])
s = sorted(t, key=lambda x: x[1])


for i in s:
    print(i[0])

Fixed submission:
s = list(input())

res = 0
for i in range(len(s)):
    if s[i] == "x":
        res += 1
if res < 8:
    print("YES")
else:
    print("NO")
Buggy python submission (verdict: Runtime Error):
n = int(input())
s = list(input())
lis = []
rtmp = 0
ltmp = 0
tmp = 0
l,r = 0,0

for i in range(n-1):
    if (s[i] != s[i+1]):
        #clis+= 1
        #print(i)
        rtmp = i+1
        ltmp = i
        for j in range(ltmp):
            if s[j] == '#':
                tmp += 1
        for j in range(rtmp,n):
            if s[j] == '.':
                tmp += 1
        lis.append(tmp)
        #print(lis)
    tmp = 0
    l,r = 0,0

if len(lis) == 0: 
    print(0)
else:
    print(min(lis))


Fixed submission:
a,b,c = map(int, input().split())
if (a <= c and c <= b) or (a >= c and c >= b):
    print('Yes')
else:
    print('No')

Buggy python submission (verdict: Runtime Error):
def chec(s):
    llis = []
    rlis = []
    clis = 0
    lef = 1
    rig = 1
    rtmp = 0
    ltmp = 0
    flg = 0
    na = len(s)
    for i in range(na):
        if na - i != 1 and s[na-i-1] == '#' and s[na-i] == '.' :
            #clis+= 1
            #print(i)
            rtmp = na - i
            ltmp = na - i-1
            while ltmp != 0 and s[ltmp] == s[ltmp-1]:
                lef += 1
                ltmp -= 1
            llis.append(lef)
            while rtmp != na and s[rtmp] == s[rtmp+1]:
                rig += 1
                rtmp += 1
            rlis.append(rig)
            lef = 1
            rig = 1
            rtmp = 0
            ltmp = 0
    #print(llis)
    #print(rlis)

    clis = min(sum(llis),sum(rlis))
    return clis


n = int(input())
s = list(input())
print(chec(s))

Fixed submission:
a,b,c = map(int, input().split())
if (a <= c and c <= b) or (a >= c and c >= b):
    print('Yes')
else:
    print('No')
Buggy python submission (verdict: Runtime Error):
	from itertools import groupby

s = input()
result = True

for k, g in groupby(s):
        print(k, list(g))
        if s.count(k) is not 2:
                result = False

if result:
        print('Yes')
else:
        print('No')

Fixed submission:
from itertools import groupby

s = input()
result = True

for k, g in groupby(s):
        if s.count(k) is not 2:
                result = False

if result:
        print('Yes')
else:
        print('No')
Buggy python submission (verdict: Runtime Error):
n = int(input())
l = [input().split() for _ in range(n)]
ot = ox = oy = 0
for (t, x, y) in l:
    diff = int(t) - ot
    if abs(x - ox) + abs(y - oy) <= diff:
        ox = x
        oy = y
        ot = t
    else:
        print("No")
        exit(0)
print("Yes")

Fixed submission:
n = int(input())
l = [input().split() for _ in range(n)]
ot = ox = oy = 0
can = True
for (t, x, y) in l:
    dt = int(t) - ot
    dist = abs(int(x) - ox) + abs(int(y) - oy)
    if dt < dist:
        can = False
    if (dist % 2 != dt % 2):
        can = False
    ox = int(x)
    oy = int(y)
    ot = int(t)

print("Yes" if can else "No")
Buggy python submission (verdict: Runtime Error):
(n, a, b) = [int(x) for x in input().split()]

def charSum(s):
    r = 0
    for c in s:
        r += int(c)

ans = sum(list(filter(lambda x: a <= charSum(str(x)) <= b, range(1, n+1))))
print(ans)

Fixed submission:
(n, a, b) = [int(x) for x in input().split()]

def charSum(s):
    r = 0
    for c in s:
        r += int(c)
    return r

ans = sum(list(filter(lambda x: a <= charSum(str(x)) <= b, range(1, n+1))))
print(ans)
Buggy python submission (verdict: Runtime Error):
count = 0
for s in input():
    if s = '1':
        count += 1

print(count)

Fixed submission:
count = 0
for s in input():
    if s == '1':
        count += 1

print(count)
Buggy python submission (verdict: Runtime Error):
ins = input()


def foo(s):
    last = s[-1:]
    # is empty
    if not s:
        return "YES"
    else:
        n = 0
        if last == 'r' and s[-6:] == 'eraser':
            n = -6
        elif last == 'r' and s[-7:] == 'dreamer':
            n = -7
        elif (last == 'e' and s[-5:] == 'erase') or (last == 'm' and s[-5:] == 'dream'):
            n = -5

        if n == 0:
            return "NO"
        else:
            return foo(s[:n])


print(foo(ins))


Fixed submission:
s = input()


while len(s) > 0:
    if s[-6:] == 'eraser':
        s=s[:-6]
    elif s[-7:] == 'dreamer':
        s=s[:-7]
    elif s[-5:] == 'erase' or s[-5:] == 'dream':
        s=s[:-5]
    else:
        print('NO')
        exit(0)
print('YES')

Buggy python submission (verdict: Runtime Error):
ins = input()


def foo(s):
    last = s[-1:]
    # is empty
    print(s)
    if not s:
        return "YES"
    else:
        n = 0
        if last == 'r' and s[-6:] == 'eraser':
            n = -6
        elif last == 'r' and s[-7:] == 'dreamer':
            n = -7
        elif (last == 'e' and s[-5:] == 'erase') or (last == 'm' and s[-5:] == 'dream'):
            n = -5

        if n == 0:
            return "NO"
        else:
            return foo(s[:n])


print(foo(ins))


Fixed submission:
s = input()


while len(s) > 0:
    if s[-6:] == 'eraser':
        s=s[:-6]
    elif s[-7:] == 'dreamer':
        s=s[:-7]
    elif s[-5:] == 'erase' or s[-5:] == 'dream':
        s=s[:-5]
    else:
        print('NO')
        exit(0)
print('YES')

Buggy python submission (verdict: Runtime Error):
ins = input()


def foo(s):
    last = s[-1:]
    # is empty
    if not s:
        return "YES"
    else:
        n = 0
        if last == 'r' and s[-6:] == 'eraser':
            n = -6
        elif last == 'r' and s[-7:] == 'dreamer':
            n = -7
        elif (last == 'e' and s[-5:] == 'erase') or (last == 'm' and s[-5:] == 'dream'):
            n = -5

        if n == 0:
            return "NO"
        else:
            return foo(s[:n])


print(foo(ins))


Fixed submission:
s = input()


while len(s) > 0:
    if s[-6:] == 'eraser':
        s=s[:-6]
    elif s[-7:] == 'dreamer':
        s=s[:-7]
    elif s[-5:] == 'erase' or s[-5:] == 'dream':
        s=s[:-5]
    else:
        print('NO')
        exit(0)
print('YES')

Buggy python submission (verdict: Runtime Error):
ins = input()


def foo(s):
    last = s[-1]
    # is empty
    if not s:
        return "YES"
    else:
        n = 0
        if last == 'r' and s[-6:] == 'eraser':
            n = -6
        elif last == 'r' and s[-7:] == 'dreamer':
            n = -7
        elif (last == 'e' and s[-5:] == 'erase') or (last == 'm' and s[-5:] == 'dream'):
            n = -5

        if n == 0:
            return "NO"
        else:
            return foo(s[:n])


print(foo(ins))


Fixed submission:
s = input()


while len(s) > 0:
    if s[-6:] == 'eraser':
        s=s[:-6]
    elif s[-7:] == 'dreamer':
        s=s[:-7]
    elif s[-5:] == 'erase' or s[-5:] == 'dream':
        s=s[:-5]
    else:
        print('NO')
        exit(0)
print('YES')
Buggy python submission (verdict: Time Limit Exceeded):
A, B, C, D =map(int, input().split())

count=0
i=1
X=C
while (X<=B):
  X=C*i
  if(X>=A):
    if(X<=B):
      count+=1
  i+=1
  
#print(B-A-count+1)
X=D
i=1
while (X<=B):  
  X=D*i
  if(X>=A):
    if(X<=B):
    	count+=1
  i+=1
        
#print(B-A-count+1)
def gcd(a, b):
    while b:
        a, b = b, a % b
    return a

def lcm(a, b):
    return a * b // gcd (a, b)

double=0
i=1
X=lcm(C, D)
while (X<=B):
  X=lcm(C, D)*i
  if(X>=A):
    if(X<=B):
    	double+=1
  i+=1
    

    
print(B-A-count+double+1)

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

def gcd(a, b):
  if(a==0):
    return b  
  c = b%a  
  return gcd(c,a)

def lsm(a, b):
  return a * b // gcd(a, b)

result= B//C+B//D-B//lsm(C,D) -((A-1)//C+(A-1)//D-(A-1)//lsm(C,D))
print(B-A+1-result)

Buggy python submission (verdict: Time Limit Exceeded):
A, B, C, D =map(int, input().split())

count=0
for i in range(A,B+1):
    if(i%C!=0):
        if(i%D!=0):
            count+=1

print(count)

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

def gcd(a, b):
  if(a==0):
    return b  
  c = b%a  
  return gcd(c,a)

def lsm(a, b):
  return a * b // gcd(a, b)

result= B//C+B//D-B//lsm(C,D) -((A-1)//C+(A-1)//D-(A-1)//lsm(C,D))
print(B-A+1-result)
Buggy python submission (verdict: Time Limit Exceeded):
N, M = map(int, input().split())

result=1
for i in range(M//N):
  A = M//N-i
  if(M%A == 0) :
    result=A
    break
    
print(result)

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

def make_yakusuu(n):
  yakusuu=[]
  for i in range(1,int(n**0.5)+1):
    if n%i == 0:
      yakusuu.append(i)
      if i != n//i:
        yakusuu.append(n//i)      
  yakusuu.sort(reverse = True)
  return yakusuu

list=make_yakusuu(M)
A=list[0]
result=1
i=0
while(A>1):
  if (N<=M/A):
    result=A
    break
  else:
    i+=1
    A=list[i]
    
print(result)
Buggy python submission (verdict: Time Limit Exceeded):
def BC133_E():
    n, k = map(int, input().split())
    d = [[] for _ in range(n)]
    for _ in range(n - 1):
        a, b = map(int, input().split())
        d[a - 1].append(b - 1)
        d[b - 1].append(a - 1)
    stack = [(0, 0)]
    visited = set()
    res = []
    while stack:
        i, l = stack.pop(0)
        visited.add(i)
        c = len(set(d[i]) - visited)
        if c != 0:
            if l == len(res):
                res.append([c])
            else:
                res[l].append(c)
        for j in d[i]:
            if j not in visited: stack.append((j, l + 1))
    ans = k
    MOD = 10**9 + 7
    for i in range(len(res)):
        if i == 0:
            c = k - 1
            for m in range(res[0][0] - 1):
                c = ((k - m - 2) * c) % MOD
            ans = (ans * c) % MOD
        else:
            for j in res[i]:
                c = k - 2
                for m in range(j - 1):
                    c = ((k - m - 3) * c) % MOD
                ans = (ans * c) % MOD
    print(ans)


BC133_E()

Fixed submission:
def BC133_E():
    n, k = map(int, input().split())
    d = [[] for _ in range(n)]
    for _ in range(n - 1):
        a, b = map(int, input().split())
        d[a - 1].append(b - 1)
        d[b - 1].append(a - 1)
    stack = [(0, 0)]
    visited = set()
    res = []
    while stack:
        i, l = stack.pop(0)
        visited.add(i)
        c = len(set(d[i]) - visited)
        if c != 0:
            if l == len(res):
                res.append([c])
            else:
                res[l].append(c)
        for j in d[i]:
            if j not in visited: stack.append((j, l + 1))
    ans = k
    MOD = 10**9 + 7
    for i in range(len(res)):
        if i == 0:
            c = k - 1
            for m in range(res[0][0] - 1):
                c = ((k - m - 2) * c) % MOD
            ans = (ans * c) % MOD
        else:
            for j in res[i]:
                c = k - 2
                for m in range(j - 1):
                    c = ((k - m - 3) * c) % MOD
                ans = (ans * c) % MOD
    print(ans)


BC133_E()
Buggy python submission (verdict: Runtime Error):
S = sorted(input())
return S[0] == S[1] and S[2] == S[3] and S[1] != S[2]

Fixed submission:
S = sorted(input())
if S[0] == S[1] and S[2] == S[3] and S[1] != S[2]:
  print('Yes')
else:
  print('No')

Buggy python submission (verdict: Runtime Error):
from collections import Counter
S = input()
c = Counter(S)
for v in c.values():
  if v != 2: return False
return True

Fixed submission:
S = sorted(input())
if S[0] == S[1] and S[2] == S[3] and S[1] != S[2]:
  print('Yes')
else:
  print('No')

Buggy python submission (verdict: Runtime Error):
from collections import Counter
S = input()
    c = Counter(S)
    for v in c.values():
        if v != 2: return False
    return True

Fixed submission:
S = sorted(input())
if S[0] == S[1] and S[2] == S[3] and S[1] != S[2]:
  print('Yes')
else:
  print('No')
Buggy python submission (verdict: Runtime Error):
def BC132_D():
    n, k = list(map(int, input().split(' ')))
    f = [1] * max(k, n - k + 2)
    for i in range(1, len(f) + 1):
        f[i] = f[i - 1] * i

    def comb(n, r, f):
        if n < r: return 0
        return f[n] // f[r] // f[n - r]

    for i in range(1, k + 1):
        print(comb(k - 1, i - 1, f) * comb(n - k + 1, i, f) % (10**9 + 7))

BC132_D()

Fixed submission:
import math
def bi(x, y):
  if x < y or y < 0 or x < 0: return 0
  if y == 0: return 1
  return math.factorial(x) // math.factorial(y) // math.factorial(x - y)

n, k = list(map(int, input().split(' ')))
for i in range(1, k + 1):
  print(bi(k - 1, i - 1) * bi(n - k + 1, i) % (10**9 + 7))

Buggy python submission (verdict: Runtime Error):
def BC132_D():
    n, k = list(map(int, input().split(' ')))
    f = [1] * max(k, n - k + 2)
    for i in range(1, len(f) + 1):
        f[i] = f[i - 1] * i

    def comb(n, r):
        if n < r: return 0
        return f[n] // f[r] // f[n - r]

    for i in range(1, k + 1):
        print(comb(k - 1, i - 1) * comb(n - k + 1, i) % (10**9 + 7))

BC132_D()

Fixed submission:
import math
def bi(x, y):
  if x < y or y < 0 or x < 0: return 0
  if y == 0: return 1
  return math.factorial(x) // math.factorial(y) // math.factorial(x - y)

n, k = list(map(int, input().split(' ')))
for i in range(1, k + 1):
  print(bi(k - 1, i - 1) * bi(n - k + 1, i) % (10**9 + 7))

Buggy python submission (verdict: Runtime Error):
import math
def bi(x, y):
  if x < y or y < 0 or x < 0: return 0
  if y == 0: return 1
  return math.factorial(x) // math.factorial(y) // math.factorial(x - y)

n, b = list(map(int, input().split(' ')))
for i in range(1, k + 1):
  print(bi(k - 1, i - 1) * bi(n - k + 1, i) % (10**9 + 7))

Fixed submission:
import math
def bi(x, y):
  if x < y or y < 0 or x < 0: return 0
  if y == 0: return 1
  return math.factorial(x) // math.factorial(y) // math.factorial(x - y)

n, k = list(map(int, input().split(' ')))
for i in range(1, k + 1):
  print(bi(k - 1, i - 1) * bi(n - k + 1, i) % (10**9 + 7))

Buggy python submission (verdict: Runtime Error):
import math
def bi(x, y):
    if x < y or y < 0: return 0
    if y == 0: return 1
    r = math.factorial(x) // math.factorial(y) // math.factorial(x - y)
    return r % (10**9 + 7)

n, k = list(map(int, input().split(' ')))
for i in range(1, k + 1):
  	if n - k < i - 1: print(0)
    print(bi(k - 1, i - 1) * (bi(n - k - 1, i - 2) + bi(n - k - 1, i - 1) + bi(n - k, i)) % (10**9 + 7))

Fixed submission:
import math
def bi(x, y):
  if x < y or y < 0 or x < 0: return 0
  if y == 0: return 1
  return math.factorial(x) // math.factorial(y) // math.factorial(x - y)

n, k = list(map(int, input().split(' ')))
for i in range(1, k + 1):
  print(bi(k - 1, i - 1) * bi(n - k + 1, i) % (10**9 + 7))
Buggy python submission (verdict: Time Limit Exceeded):
def BC132_F():
    n, k = list(map(int, input().split(' ')))
    mod = 10**9 + 7
    mem = {}

    def dp(s, l):
        if l == 2: return n // s
        if (s, l) in mem: return mem[(s, l)]
        mem[(s, l)] = sum([dp(x, l - 1) for x in range(1, n // s + 1)]) % mod
        return mem[(s, l)]

    return dp(1, k + 1)


print(BC132_F())

Fixed submission:
from itertools import accumulate
def BC132_F():
    n, k = list(map(int, input().split(' ')))
    mod = 10**9 + 7
    sqt = int(n**0.5)
    cnt = [n // i - n // (i + 1) for i in range(1, n // sqt)] + [1] * sqt
    x = cnt
    for _ in range(k):
        x = [(i * j) % mod for i, j in zip(accumulate(reversed(x)), cnt)]
    return x[-1]


print(BC132_F())
Buggy python submission (verdict: Time Limit Exceeded):
l, r = map(int, input().split())
count = int()
baff = set()
for i in range(l, r + 1):
    for j in range(i + 1, r + 1):
            baff.add((i * j) % 2019)
print(min(baff))

Fixed submission:
l, r = map(int, input().split())
count = int()
baff = set()
if l <= 3 and r >= 673:
    print(0)
else:
    for i in range(l, r + 1):
        for j in range(i + 1, r + 1):
                baff.add((i * j) % 2019)
                if (i * j) % 2019 == 0:
                    break
        else:
            continue
        break
    print(min(baff))
Buggy python submission (verdict: Runtime Error):
n, x = map(int, input().split())
l = list(map(int, input().split()))

a = 0
b = 0
for i in range(n + 1):
    a += l[i]
    b += 1
    if a > x:
        break
print(b)

Fixed submission:
n, x = map(int, input().split())
l = list(map(int, input().split()))
 
a = 0
b = 1
for i in range(n):
    a += l[i]
    b += 1
    if a > x:
        b -= 1
        break
    
print(b)
Buggy python submission (verdict: Runtime Error):

def frog():
    n = int(input())
    h_list = list(map(int, input().split()))

    dp = [0] * 100

    for n_element in range(n):
        if n_element >= 2:
            dp[n_element] = min(dp[n_element - 1] + abs(h_list[n_element] - h_list[n_element - 1]),
                                dp[n_element - 2] + abs(h_list[n_element] - h_list[n_element - 2]))
        elif n_element == 1:
            dp[n_element] = abs(h_list[n_element] - h_list[n_element - 1])
        else:
            dp[n_element] = 0

    print(dp[n - 1])


if __name__ == "__main__":
    frog()


Fixed submission:

def frog():
    n = int(input())
    h_list = list(map(int, input().split()))

    dp = [0] * 10 ** 5

    for n_element in range(n):
        if n_element >= 2:
            dp[n_element] = min(dp[n_element - 1] + abs(h_list[n_element] - h_list[n_element - 1]),
                                dp[n_element - 2] + abs(h_list[n_element] - h_list[n_element - 2]))
        elif n_element == 1:
            dp[n_element] = abs(h_list[n_element] - h_list[n_element - 1])
        else:
            dp[n_element] = 0

    print(dp[n - 1])


if __name__ == "__main__":
    frog()
Buggy python submission (verdict: Runtime Error):
N, Q = list(map(int, input().split()))
s = input()

char = {}
for i, c in enumerate(s):
    if c not in char.keys():
        char[c] = [i]
    else:
        char[c] = char[c] + [i]

count = [1] * N
out = 0
for _ in range(Q):
    A, L = input().split()
    try:
        idx = char[A]
    except KeyError:
        continue

    if L == "L":
        for ix in idx:
            temp = count[ix]
            count[ix] = 0
            if ix == 0:
                out += temp
            else:
                count[ix - 1] += temp
    else:
        for ix in idx:
            temp = count[ix]
            count[ix] = 0
            if ix == N - 1:
                out += temp
            else:
                count[ix + 1] += temp

print(N - out)


Fixed submission:
a, b, c = list(map(int, input().split()))

if a == b == c:
    print("Yes")
else:
    print("No")
Buggy python submission (verdict: Time Limit Exceeded):
num = input()
N, M = [int(x) for x in num.split()]

A = []
B = []
for n in range(N):
    num = input()
    a, b = [int(x) for x in num.split()]
    A.append(a)
    B.append(b)

count = 0
money = 0
while count < M:
    ind = A.index(min(A))

    if (M - count) > B[ind]:
        money += A[ind] * B[ind]
        count += B[ind]
    else:
        money += A[ind] * (M - count)
        count += B[ind]

    A.remove(min(A))
    B.pop(ind)

print(money)


Fixed submission:
num = input()
N, M = [int(x) for x in num.split()]

dic = []
for n in range(N):
    num = input()
    a, b = [int(x) for x in num.split()]
    dic.append((a, b))

sort = sorted(dic, key=lambda x: x[0])
count = 0
money = 0
ind = 0
while count < M:

    if (M - count) > sort[ind][1]:
        money += sort[ind][0] * sort[ind][1]
        count += sort[ind][1]
    else:
        money += sort[ind][0] * (M - count)
        count += (M - count)

    ind += 1
print(money)
Buggy python submission (verdict: Runtime Error):
from math import factorial

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

# コンビネーションを計算
def calcCombination(m, n):
    return factorial(m) // (factorial(n) * factorial(m-n))

for i in range(1, K+1):
    print(calcCombination(N-K+1, i) * calcCombination(K-1, i-1) % (10**9+7))


Fixed submission:
from math import factorial

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

# コンビネーションを計算
def calcCombination(m, n):
    return factorial(m) // (factorial(n) * factorial(m-n))

for i in range(1, K+1):
    if N-K+1 < i:
        print(0)
    else:
        print(calcCombination(N-K+1, i) * calcCombination(K-1, i-1) % (10**9+7))
Buggy python submission (verdict: Time Limit Exceeded):
from sys import stdin
N, M = [int(x) for x in stdin.readline().rstrip().split()]
l = [[int(x) for x in stdin.readline().rstrip().split()] for _ in range(M)]

listT = []
for t in l:
  listT = listT + t

s = min(list(set(listT)))
e = max(list(set(listT)))
cnt = 0
for i in range(s, e+1):
  isOk = True
  for start, end in l:
    if i < start or i > end:
      isOk = False
      break
  if isOk == True:
    cnt = cnt + 1

print(cnt)

Fixed submission:
from sys import stdin
N, M = [int(x) for x in stdin.readline().rstrip().split()]
l = [[int(x) for x in stdin.readline().rstrip().split()] for _ in range(M)]

sMax = 0
eMin = 0
for s, e in l:
  if sMax < s or sMax == 0:
    sMax = s
  if eMin > e or eMin == 0:
    eMin = e

if eMin - sMax >= 0:
  print(eMin - sMax + 1)
else:
  print(0)

Buggy python submission (verdict: Time Limit Exceeded):
from sys import stdin
N, M = [int(x) for x in stdin.readline().rstrip().split()]
l = [[int(x) for x in stdin.readline().rstrip().split()] for _ in range(M)]
cnt = 0
for i in range(1, N+1):
  isOk = True
  for start, end in l:
    if i < start or i > end:
      isOk = False
      break
  if isOk == True:
    cnt = cnt + 1

print(cnt)

Fixed submission:
from sys import stdin
N, M = [int(x) for x in stdin.readline().rstrip().split()]
l = [[int(x) for x in stdin.readline().rstrip().split()] for _ in range(M)]

sMax = 0
eMin = 0
for s, e in l:
  if sMax < s or sMax == 0:
    sMax = s
  if eMin > e or eMin == 0:
    eMin = e

if eMin - sMax >= 0:
  print(eMin - sMax + 1)
else:
  print(0)

Buggy python submission (verdict: Time Limit Exceeded):
N, M = map(int, input().split())
l = [list(map(int, input().split())) for _ in range(M)]
cnt = 0
for i in range(1, N+1):
  isOk = True
  for start, end in l:
    if i < start or i > end:
      isOk = False
      break
  if isOk == True:
    cnt = cnt + 1

print(cnt)

Fixed submission:
from sys import stdin
N, M = [int(x) for x in stdin.readline().rstrip().split()]
l = [[int(x) for x in stdin.readline().rstrip().split()] for _ in range(M)]

sMax = 0
eMin = 0
for s, e in l:
  if sMax < s or sMax == 0:
    sMax = s
  if eMin > e or eMin == 0:
    eMin = e

if eMin - sMax >= 0:
  print(eMin - sMax + 1)
else:
  print(0)
Buggy python submission (verdict: Runtime Error):
b = input()
dic = {"A":"T", "C":"G"}
print(dic[b])

Fixed submission:
b = input()
dic = {"A":"T", "C":"G", "G":"C", "T":"A"}
print(dic[b])