Harryxun/GPT-100-sft-dataset huggingface dataset:
Problem p02716 (python)

Fixed submission:
import itertools
n=int(input())
a= list(map(int, input().split()))

# aを偶数奇数の要素で振り分け
a1=[]
a2=[]

for i in range(n):
    if i%2==0:
        a1.append(a[i])
    else:
        a2.append(a[i])

# 累積和も作っておく
a3=list(itertools.accumulate(a1))
a4=list(itertools.accumulate(a2))


x1=sum(a1)
x2=sum(a2)


if n%2==0:
    ans=-float('inf')
    for i in range(n//2):
        ans=max(a3[i]+x2-a4[i],ans)
    print(max(ans,x1,x2))
else:
    # 奇数番目だけの要素を選んだ時の最大値
    ans1=sum(a1)-min(a1)
    # dp1[i]=奇数偶数奇数or偶数奇数と移動した時のi番目までのMAX
    dp1 = [-float('inf')] * (n // 2 + 1)
    dp1[0] = a1[0]
    # dp2[i]=奇数偶数or偶数のみと移動した時のi番目までのMAX
    dp2 = [-float('inf')] * (n // 2)
    dp2[0] = a2[0]
    for i in range(n // 2 - 1):
        dp2[i + 1] = max(a3[i] + a2[i + 1], dp2[i] + a2[i + 1])
        if i==0:
            dp1[i + 2] = dp2[i] + a1[i + 2]
        else:
            dp1[i + 2] = max(dp2[i] + a1[i + 2], dp1[i + 1] + a1[i + 2])
    print(max(dp1[-1], dp2[-1],ans1))

Buggy submission (verdict: Runtime Error):
n=int(input())
a= list(map(int, input().split()))

dp=[[-float('inf'),-float('inf'),-float('inf')] for i in range(n)]
# dp[i][0]:iまででまだ飛ばしてない
# dp[i][1]:一つ飛ばしてる
# dp[i][2]:２つ飛ばしてる
dp[0][0]=a[0]
dp[1][1]=a[1]
dp[2][2]=a[2]

if n==2:
    print(max(a[0],a[1]))
    exit()
    
for i in range(2,n):
    dp[i][0]=dp[i-2][0]+a[i]
    if i>=3:
        dp[i][1]=max(dp[i-2][1]+a[i],dp[i-3][0]+a[i])
    if i>=4:
        dp[i][2]=max(dp[i-2][2]+a[i],dp[i-3][1]+a[i],dp[i-4][0]+a[i])

if n%2==0:
    print(max(dp[-2][0],dp[-1][1]))
else:
    print(max(dp[-3][0],dp[-2][1],dp[-1][2]))

Buggy submission (verdict: Runtime Error):
n=int(input())
a= list(map(int, input().split()))

dp=[[-float('inf'),-float('inf'),-float('inf')] for i in range(n)]
# dp[i][0]:iまででまだ飛ばしてない
# dp[i][1]:一つ飛ばしてる
# dp[i][2]:２つ飛ばしてる
dp[0][0]=a[0]
dp[1][1]=a[1]
dp[2][2]=a[2]
for i in range(2,n):
    dp[i][0]=dp[i-2][0]+a[i]
    if i>=3:
        dp[i][1]=max(dp[i-2][1]+a[i],dp[i-3][0]+a[i])
    if i>=4:
        dp[i][2]=max(dp[i-2][2]+a[i],dp[i-3][1]+a[i],dp[i-4][0]+a[i])

if n%2==0:
    print(max(dp[-2][0],dp[-1][1]))
else:
    print(max(dp[-3][0],dp[-2][1],dp[-1][2]))

Buggy submission (verdict: Runtime Error):
import itertools
n=int(input())
a= list(map(int, input().split()))

# aを偶数奇数の要素で振り分け
a1=[]
a2=[]

for i in range(n):
    if i%2==0:
        a1.append(a[i])
    else:
        a2.append(a[i])

# 累積和も作っておく
a3=list(itertools.accumulate(a1))
a4=list(itertools.accumulate(a2))


x1=sum(a1)
x2=sum(a2)


if n%2==0:
    ans=-float('inf')
    for i in range(n//2):
        ans=max(a3[i]+a4-a4[i],ans)
    print(max(ans,x1,x2))
else:
    # 奇数番目だけの要素を選んだ時の最大値
    ans1=sum(a1)-min(a1)
    # dp1[i]=奇数偶数奇数or偶数奇数と移動した時のi番目までのMAX
    dp1 = [-float('inf')] * (n // 2 + 1)
    dp1[0] = a1[0]
    # dp2[i]=奇数偶数or偶数のみと移動した時のi番目までのMAX
    dp2 = [-float('inf')] * (n // 2)
    dp2[0] = a2[0]
    for i in range(n // 2 - 1):
        dp2[i + 1] = max(a3[i] + a2[i + 1], dp2[i] + a2[i + 1])
        if i==0:
            dp1[i + 2] = dp2[i] + a1[i + 2]
        else:
            dp1[i + 2] = max(dp2[i] + a1[i + 2], dp1[i + 1] + a1[i + 2])
    print(max(dp1[-1], dp2[-1],ans1))
Problem p02719 (python)

Fixed submission:
n,k= map(int, input().split())
print(min(n%k,abs(n%k-k)))

Buggy submission (verdict: Runtime Error):
n,k= map(int, input().split())
print(min(n%k,abs(n%k-k))
Problem p02768 (python)

Fixed submission:
import math
n,c,d= map(int, input().split())
mod = pow(10,9)+7

def comb(n,k):
    x=1
    y=1
    for i in range(1,k+1):
        x*=(n+1-i)
        x%=mod
        y*=i
        y%=mod
    return x*pow(y,mod-2,mod)


ans=(pow(2,n,mod)-1-comb(n,c)-comb(n,d))%mod
print(ans)

Buggy submission (verdict: Runtime Error):
import math
n,a,b= map(int, input().split())
mod = 10 ** 9 + 7
def power_func(a,n,mod):
  bi=str(format(n,"b"))#2進表現に
  res=1
  for i in range(len(bi)):
    res=(res*res) %mod
    if bi[i]=="1":
      res=(res*a) %mod
  return res


def cmb(n, r, mod):
    if (r < 0 or r > n):
        return 0
    r=min(r,n-r)

    return g1[n] * g2[r] * g2[n - r] % mod


N =10 ** 6 # 出力の制限
g1 = [1, 1]  # 元テーブル
g2 = [1, 1]  # 逆元テーブル
inverse = [0, 1]  # 逆元テーブル計算用テーブル

for i in range(2, N + 1):
    g1.append((g1[-1] * i) % mod)
    inverse.append((-inverse[mod % i] * (mod // i)) % mod)
    g2.append((g2[-1] * inverse[-1]) % mod)

ans=(power_func(2,n,mod)-1-cmb(n,a,mod)-cmb(n,b,mod))%mod
print(ans)
Problem p02803 (python)

Fixed submission:


def clear_maze(sx, sy, maze):

    INF=-10**9
    global cnt
    cnt=0


    distance = [[INF for i in range(w+1)] for j in range(h+1)]
    #    distance = [[None]*field_x_length]*field_y_length



    def bfs():
        global cnt
        queue = []

        queue.insert(0, (sx, sy))

        distance[sx][sy] = 0

        while len(queue):
            x, y = queue.pop()



            for i in range(0, 4):
                nx, ny = x + [1, 0, -1, 0][i], y + [0, 1, 0, -1][i]


                if (0 <= nx and  0 <= ny  and maze[nx][ny] != '#' and distance[nx][ny] == INF):
                    queue.insert(0, (nx, ny))

                    distance[nx][ny] = distance[x][y] + 1
                    if cnt<=distance[nx][ny]:
                        cnt=distance[nx][ny]





        return cnt

    cnt=0
    distance = [[INF for i in range(w + 1)] for j in range(h + 1)]




    return bfs()

h,w = map(int, input().split())
maze=[list(input()) for i in range(h)]
t=[[0]*w for i in range(h)]
for i in range(h):
    maze[i]=['#']+maze[i]+['#']

maze=[['#' for i in range(w+2)]]+maze+[['#' for i in range(w+2)]]




ans=0

for i in range(1,h+1):
    for j in range(1,w+1):
        if maze[i][j]=='#':
            continue
        v=(clear_maze(i, j, maze))

        if ans<=v:
            ans=v
print(ans)

Buggy submission (verdict: Runtime Error):
from typing import List, Any, Union


def clear_maze(sx, sy, maze):

    INF=-10**9
    global cnt
    cnt=0


    distance = [[INF for i in range(w+1)] for j in range(h+1)]
    #    distance = [[None]*field_x_length]*field_y_length



    def bfs():
        global cnt
        queue = []

        queue.insert(0, (sx, sy))

        distance[sx][sy] = 0

        while len(queue):
            x, y = queue.pop()



            for i in range(0, 4):
                nx, ny = x + [1, 0, -1, 0][i], y + [0, 1, 0, -1][i]


                if (0 <= nx and  0 <= ny  and maze[nx][ny] != '#' and distance[nx][ny] == INF):
                    queue.insert(0, (nx, ny))

                    distance[nx][ny] = distance[x][y] + 1
                    if cnt<=distance[nx][ny]:
                        cnt=distance[nx][ny]





        return cnt

    cnt=0
    distance = [[INF for i in range(w + 1)] for j in range(h + 1)]




    return bfs()

h,w = map(int, input().split())
maze=[list(input()) for i in range(h)]
t=[[0]*w for i in range(h)]
for i in range(h):
    maze[i]=['#']+maze[i]+['#']

maze=[['#' for i in range(w+2)]]+maze+[['#' for i in range(w+2)]]




ans=0

for i in range(1,h+1):
    for j in range(1,w+1):
        if maze[i][j]=='#':
            continue
        v=(clear_maze(i, j, maze))

        if ans<=v:
            ans=v
print(ans)
Problem p02804 (python)

Fixed submission:
def cmb(n, r, mod):
    if (r < 0 or r > n):
        return 0
    r=min(r,n-r)

    return g1[n] * g2[r] * g2[n - r] % mod


mod = 10 ** 9 + 7  # 出力の制限
N = 10 ** 5
g1 = [1, 1]  # 元テーブル
g2 = [1, 1]  # 逆元テーブル
inverse = [0, 1]  # 逆元テーブル計算用テーブル

for i in range(2, N + 1):
    g1.append((g1[-1] * i) % mod)
    inverse.append((-inverse[mod % i] * (mod // i)) % mod)
    g2.append((g2[-1] * inverse[-1]) % mod)

n, k = map(int, input().split())
a = list(map(int, input().split()))
a.sort()
mod =10**9+7
mi = 0
ma = 0
for i in range(n - k + 1):
    x = cmb(n - i - 1, k - 1, mod)
    mi += a[i] * x
    ma += a[n - 1 - i] * x
    mi %= mod
    ma %= mod

ans = ma - mi

print(ans % mod)

Buggy submission (verdict: Runtime Error):
def cmb(n, r, mod):
    if (r < 0 or r > n):
        return 0
    r=min(r,n-r)

    return g1[n] * g2[r] * g2[n - r] % mod


mod = 10 ** 9 + 7  # 出力の制限
N = 10 ** 4
g1 = [1, 1]  # 元テーブル
g2 = [1, 1]  # 逆元テーブル
inverse = [0, 1]  # 逆元テーブル計算用テーブル

for i in range(2, N + 1):
    g1.append((g1[-1] * i) % mod)
    inverse.append((-inverse[mod % i] * (mod // i)) % mod)
    g2.append((g2[-1] * inverse[-1]) % mod)

n, k = map(int, input().split())
a = list(map(int, input().split()))
a.sort()
mod =10**9+7
mi = 0
ma = 0
for i in range(n - k + 1):
    x = cmb(n - i - 1, k - 1, mod)
    mi += a[i] * x
    ma += a[n - 1 - i] * x
    mi %= mod
    ma %= mod

ans = ma - mi

print(ans % mod)

Buggy submission (verdict: Runtime Error):
def cmb(n, r, mod):

    if ( r<0 or r>n ):
        return 0


    return g1[n] * g2[r] * g2[n-r] % mod

mod = 10**9+7 #出力の制限
N = 10**4
g1 = [1, 1] # 元テーブル
g2 = [1, 1] #逆元テーブル
inverse = [0, 1] #逆元テーブル計算用テーブル

for i in range( 2, N + 1 ):
    g1.append( ( g1[-1] * i ) % mod )
    inverse.append( ( -inverse[mod % i] * (mod//i) ) % mod )
    g2.append( (g2[-1] * inverse[-1]) % mod )








n, k = map(int, input().split())
a=list(map(int, input().split()))
a.sort()
mod=10**9+7
min=0
max=0
for i in range(n-k+1):
    x=cmb(n-i-1,k-1,mod)
    min+=a[i]*x
    max+=a[n-1-i]*x
    min%=mod
    max%=mod

ans=max-min


print(ans%mod)
Problem p02807 (python)

Fixed submission:
import math

n = int(input())
x = list(map(int, input().split()))
ans = 0
mod = 10 ** 9 + 7
f = 1
for i in range(1,n):
  f *= i
  f %= mod

for i in range(n-1):
    ans+=(x[n-1]-x[i])*pow(i+1,mod-2,mod)

ans*=f
ans%=mod


print(ans)

Buggy submission (verdict: Runtime Error):
import math

n = int(input())
x = list(map(int, input().split()))
ans = 0
mod = 10 ** 9 + 7
v = math.factorial(n - 1)


for i in range(1, n):
    w = (v//i)%mod
    ans += ((x[n - 1] - x[i - 1]) * w)mod


print(int(ans))

Buggy submission (verdict: Runtime Error):
import math

n=int(input())
x = list(map(int, input().split()))
ans=0
mod=10**9+7


for i in range(1,n):
    ans+=(x[n-1]-x[i-1])/i
    ans%=mod

ans*=math.factorial(n-1)
ans%=mod

print(int(ans))

Buggy submission (verdict: Runtime Error):
import math

n=int(input())
x = list(map(int, input().split()))
ans=0
mod=10**9+7


for i in range(1,n):
    print(x[n-1],x[i])
    ans+=(x[n-1]-x[i-1])/i
    ans%=mod

ans*=math.factorial(n-1)
ans%=mod

print(int(ans))
Problem p02850 (python)

Fixed submission:
import collections
from collections import deque
def clear_maze(s):

    INF=-10**9
    ans = [INF for i in range(n)]
    def bfs():
        d = deque()
        d.append(s)

        while len(d):
            v=1
            x = d.popleft()
            for i in range(len(b[x])):
                y=b[x][i]
                if ans[y] == INF:
                    d.append(y)
                    if ans[x]==v:
                        v+=1
                    ans[y]=v
                    v+=1
        return ans
    return bfs()

n=int(input())
a = [list(map(int, input().split())) for i in range(n-1)]
b = [[] for i in range(n)]

for i in range(n-1):
    b[a[i][0]-1].append(a[i][1]-1)


c=clear_maze(0)
print(max(c))
for i in range(n-1):
    print(c[a[i][1]-1])

Buggy submission (verdict: Runtime Error):
import collections
from collections import deque
def tree(s):

    INF=-10**9
    dis = [INF for i in range(n)]
    ans = [INF for i in range(n)]
    dis[s]=0
    def bfs():
        d = deque()
        d.append(s)

        while len(d):
            x = d.popleft()
            cnt=1

            for i in range(len(b[x])):
                y=b[x][i]
                if dis[y] == INF:
                    d.append(y)
                    dis[y]=dis[x]+1
                    if ans[x]!=cnt:
                        ans[y]=cnt
                        cnt+=1
                    else:
                        cnt+=1
                        ans[y]=cnt
                        cnt+=1

        return ans
    return bfs()

n=int(input())
a = [list(map(int, input().split())) for i in range(n-1)]
b = [[] for i in range(n)]

for i in range(n-1):
    b[a[i][0]-1].append(a[i][1]-1)

x=tree(0)
print(max(x))
for i in range(1,n):
    print(x[a[i][1]-1])
Problem p02852 (python)

Fixed submission:
n,m=map(int, input().split()) 
s=list(input())

# dp[i]=iに行くのに最短の手数
dp=[0]*(n+1)
ans=0
now=n
count=0
flag=True
ans=[]
for i in range(10**11):
    if flag==False:
        break
    for j in range(m,0,-1):
        if now-j<=0:
            ans.append(now)
            flag=False
            break
        elif s[now-j]!='1':
            ans.append(j)
            count+=1
            now-=j
            break
        else:
            if j==1:
                print(-1)
                exit()
            continue
        

ans.reverse()

print(*ans)

Buggy submission (verdict: Runtime Error):
n,m=map(int, input().split()) 
s=list(input())

# dp[i]=iに行くのに最短の手数
dp=[0]*(n+1)
ans=0
now=n
count=0
flag=True
ans=[]
for i in range(10**11):
    if flag==False:
        break
    for j in range(m,0,-1):
        if s[now-j]!='1':
            if now-j<=0:
                ans.append(now)
                flag=False
                break
            else:
                ans.append(j)
                count+=1
                now-=j
                break
        else:
            if j==1:
                print(-1)
                exit()
            continue
        

ans.reverse()

print(*ans)

Buggy submission (verdict: Runtime Error):
n,m=map(int, input().split()) 
s=list(input())

# dp[i]=iに行くのに最短の手数
dp=[0]*(n+1)
ans=0
now=n
count=0
flag=True
ans=[]
for i in range (n+1):
    if flag==False:
        break
    for j in range(m,0,-1):

        if s[now-j]!='1':
            if now-j<=0:
                ans.append(now)
                flag=False
                break
            else:
                ans.append(j)
                count+=1
                now-=j
                break
        else:
            if j==1:
                print(-1)
                exit()
            continue
        

ans.reverse()

print(*ans)

Buggy submission (verdict: Runtime Error):
n,m=map(int, input().split()) 
s=list(input())

# dp[i]=iに行くのに最短の手数
dp=[0]*(n+1)
ans=0
now=n
count=0
flag=True
ans=[]
for i in range (n+1):
    if flag==False:
        break
    for j in range(m,0,-1):

        if s[now-j]!='1':
            if now-j<=0:
                ans.append(now)
                flag=False
                break
            else:
                ans.append(j)
                count+=1
                now-=j
                break
        else:
            if j==0:
                print(-1)
                exit()
            continue
        

ans.reverse()

print(*ans)
Problem p02853 (python)

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

x=[300000,200000,100000]+[0]*300
y=[300000,200000,100000]+[0]*300

if a==1 and b==1:
    print(1000000)

else:
    print(x[a-1]+x[b-1])

Buggy submission (verdict: Runtime Error):
m=int(input())
a=[list(map(int, input().split())) for i in range(m)]
x=0
y=0
z=0
y1=float('inf')
ans=0
for i in range(m):
    x+=a[i][1]
    y+=a[i][0]*a[i][1]



print(x-1+(y-1)//9)
Problem p02911 (python)

Fixed submission:
import collections

n,k,q=map(int, input().split())
a=[int(input()) for i in range(q)]

c = collections.Counter(a)

for i in range(1,n+1):
    if k-q+c[i]>=1:
        print('Yes')
    else:
        print('No')

Buggy submission (verdict: Runtime Error):

n,k,q=map(int, input().split())
a=[int(input()) for i in range(q)]

c = collections.Counter(a)

for i in range(1,n+1):
    if k-q+c[i]>=1:
        print('Yes')
    else:
        print('No')
Problem p02927 (python)

Fixed submission:
m,d=map(int, input().split())
count=0
for i in range(1,m+1):
    for j in range(1,d+1):
        if j>=20 and j%10>=2:
            if (j%10)*((j-j%10)//10)==i:
                count+=1
print(count)

Buggy submission (verdict: Runtime Error):


n=int(input())
s=list(input())
#前処理
for i in range(0,2*n,2):
    if s[i]=='W':
        s[i]='B'
    else:
        s[i]='W'

#Lの数を数えてRとマッチング
countL=0
ans=1
for i in range(2*n):
    if s[i]=='W':
        countL+=1
    else:
        ans*=countL
        if countL==0:
            print(0)
            exit()
        countL-=1
# 答えはansの階乗
ans=ans%(10**9+7)
for i in range(1,n+1):
    ans*=i
    ans%(10**9+7)
print(ans)
Problem p02929 (python)

Fixed submission:
mod=10**9+7
n=int(input())
s=list(input())
#前処理
for i in range(0,2*n,2):
    if s[i]=='W':
        s[i]='B'
    else:
        s[i]='W'

#Lの数を数えてRとマッチング
countL=0
ans=1
for i in range(2*n):
    if s[i]=='W':
        countL+=1
    else:
        ans*=countL
        if countL==0:
            print(0)
            exit()
        ans%=mod
        countL-=1
if countL!=0:
    print(0)
    exit()
# 答えはansの階乗
for i in range(1,n+1):
    ans*=i
    ans%=mod
print(ans)

Buggy submission (verdict: Runtime Error):


n=int(input())
s=list(input())
#前処理
for i in range(0,2*n,2):
    if s[i]=='W':
        s[i]='B'
    else:
        s[i]='W'

#Lの数を数えてRとマッチング
countL=0
ans=1
for i in range(2*n):
    if s[i]=='W':
        countL+=1
    else:
        ans*=countL
        if countL==0:
            print(0)
            exit()
        countL-=1
# 答えはansの階乗
ans=ans%(10**9+7)
for i in rangea(1,n+1):
    ans*=i
    ans%(10**9+7)
print(ans)
Problem p02995 (python)

Fixed submission:
a,b,c,d=map(int,input().split())
 
def gcd(x,y):
   if x % y == 0:
       return y
   return gcd(y, x % y)
 
CD = (c * d) // gcd(c,d)
 
h_b =b - (b // c) - (b // d) + (b // CD)
h_a = (a - 1) - (a - 1) // c - (a - 1) // d + (a - 1) // CD
 
print(h_b - h_a)

Buggy submission (verdict: Runtime Error):
import math
a,b,c,d=map(int, input().split())
e = round(c * d / math.gcd(c, d))

f=math.ceil(a/c) 
g=math.floor(b/c) 
h=math.ceil(a/d) 
k=math.floor(b/d) 
l=math.ceil(a/e)
m=math.floor(b/e)

if e<a:
    print(b-a+1-(g-f+1+k-h+1))
else:
    print(b-a+1-(g-f+1+k-h+1-(m-l+1)))

Buggy submission (verdict: Runtime Error):
import math
a,b,c,d=map(int, input().split())
e = round(c * d / math.gcd(c, d))

f=math.ceil(a/c) 
g=math.floor(b/c) 
h=math.ceil(a/d) 
k=math.floor(b/d) 
l=math.ceil(a/e)
m=math.floor(b/e)

if e<a:
    print(b-a+1-(g-f+1+k-h+1))
else:
    print(b-a+1-(g-f+1+k-h+1-(m-l+1)))
Problem p02996 (python)

Fixed submission:
n=int(input())
s=[list(map(int, input().split()))  for i in range(n)]
v=[]
r=[]
x=0
y=0
s.sort(key=lambda x:x[1])

for i in range(n):
    x+=s[i][0]
    y=s[i][1]
    if x>y:
        print('No')
        exit()
print('Yes')

Buggy submission (verdict: Runtime Error):
import math
a,b,c,d=map(int, input().split())
def gcd(a, b):
	while b:
		a, b = b, a % b
	return a
	
e = round(c * d / gcd(c, d))

f=(a-1)//c
g=b//c
h=(a-1)//d 
k=b//d
l=(a-1)//e
m=b//e

x=(b-a+1)
y=g-f
z=k-h
w=m-l
print(f,g,h,k,l,m)
print(x-y-z+w)
Problem p03006 (python)

Fixed submission:
n=int(input())
s=[list(map(int, input().split()))  for i in range(n)]
x=[]
if n==1:
    print(1)
    exit(0)

for i in range(n):
    for j in range(n):
        if i==j:
            continue
        t=(s[i][0]-s[j][0],s[i][1]-s[j][1])
        x.append(t)
        
ans = [x.count(x[i]) for i in range(len(x))]
print(n-max(ans))

Buggy submission (verdict: Runtime Error):
import itertools
import collections
n=int(input())
s=[list(map(int, input().split())) for i in range(n)]
ans=[]
x=list(itertools.permutations(s))

v=[]
r=[]
count=0
for i in range(len(x)):
    e=[]
    v=[]
    for j in range(n-1):
        a=x[i][j][0]
        b=x[i][j+1][0]
        c=x[i][j][1]
        d=x[i][j+1][1]
        v.append(b-a)
        v.append(d-c) 
    q=[v[i:i+2] for i in range(0,len(v),2)]
    for i in range(len(q)):
        e.append(q.count(q[i]))
    r.append(max(e))
    
print(n-max(r))
Problem p03037 (python)

Fixed submission:
n, m=map(int, input().split())
grid = []
for i in range(m):
    array = list(map(int, input().strip().split()))
    grid.append(array)


maxa,mina=grid[0]
for i in range(1,m):
    if maxa<grid[i][0]:
        maxa=grid[i][0]
    if mina>grid[i][1]:
        mina=grid[i][1]

v=mina-maxa+1
if v>0:
    print(v)
else:
    print(0)

Buggy submission (verdict: Runtime Error):
n, m=map(int, input().split())
grid = []
for i in range(m):
    array = list(map(int, input().strip().split()))
    grid.append(array)


maxa=0
maxb=0
for i in range (1,m):
    if maxa<gird[i][0]:
        maxa=gird[i][0]
    if grid[i][1]<grid[i][0]:
        maxb=grid[i][1]

v=maxb-maxa+1
if v>0:
    print(v)
else:
    print(0)
Problem p03043 (python)

Fixed submission:
import math
N,K=map(int, input().split())
p=20
count=0
ans=0
for i in range(N):
  if (i+1)>=K:
    count+=1
  else:
    for j in range(20):
      if (i+1)*math.pow(2,j)>=K:
        ans+=math.pow(1/2,j)
        break
    
  
if N<K:
    print(1/N*ans)
else:
    print(count/N+1/N*ans)

Buggy submission (verdict: Runtime Error):
N,K=map(int, input().split())
p=20
count=0
for i in range(N):
  if i>=K:
    count+=1
  else:
    for j in range(20):
      if i*pow(j,2)>=K:
        ans+=pow(j,1/2)
        break
    
  
    
print(count/100+i/j*ans)
Problem p03050 (python)

Fixed submission:
import math
n=int(input())

x=n**0.5

if x-x//1!=0:
    x=int(x//1)
else:
    x=int(x//1)-1
y=0

for i in range(1,x+1):
    if (n-i)/i-(n-i)//i==0:
        if int((n-i)//i)!=i:
            y+=int((n-i)//i)

print(y)

Buggy submission (verdict: Runtime Error):
n=int(input())
s=[input() for i in range(n)]
count=0
A=0
B=0
BA=0
for i in range(n):
    for j in range(len(s[i])-1):
        if j==0:
            if s[i][j]=='B':
                B+=1
        if j==len(s[i])-2:
            if s[i][j+1]=='A':
                A+=1
        if s[i][j:j+2]=='AB':
            count+=1
    if s[i][0]=='B' and s[i][-1]=='A':
        BA+=1
        A-=1
        B-=1
        
if BA==0:
    print(count+min(A,B))
else:
    ans=count+BA-1
    if A>=1 and B>=1:
        print(ans+2)
    elif A>=1 or B>=1:
        print(ans+1)
    else:
        print(ans)

Buggy submission (verdict: Runtime Error):
n=int(input())
ans=0
for i in range(n):
    if i**2>=n:
        x=i
        break

for i in range(1,x):
    if n%i==0:
        ans+=n//i-1
print(ans)
Problem p03059 (python)

Fixed submission:
A,B,T=map(int, input().split())
print(T//A*B)

Buggy submission (verdict: Runtime Error):
a = int(input())
b= int(input())
c = int(input())
x= int(input())
ans=0
for i in range(a+1):
  for j in range(b+1):
    for k in range(c+1):
      if i*500+j*100+k*50==x:
        ans+=1
print(ans)
Problem p03060 (python)

Fixed submission:
n = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
ans = 0
m = a[0]
k = b[0]
for i in range(n):
    if a[i] >b[i] :
        ans += a[i]-b[i]
print(ans)

Buggy submission (verdict: Runtime Error):
n = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))

m = a[0]
k = b[0]
for i in range(n):
    if a[i] >b[i] :
        ans = a[i]-b[i]
print(ans)
Problem p03069 (python)

Fixed submission:
import itertools

n=int(input())
s=list(input())
a=s.count('#')
b=0
ans=a

for i in range(1,n+1):
    if s[-i]=='.':
        b+=1
    else:
        a-=1
        
    ans=min(a+b,ans)
print(ans)

Buggy submission (verdict: Runtime Error):
import itertools

n=int(input())
s=list(input())
v=list(reversed(s))
ans=float('inf')
s1=[]

s=itertools.accumulate(s)
v=itertools.accumulate(v)
s=['']+list(s)
v=['']+list(v)

for i in range(n):
    cnt=s[i].count('#')+v[-(i+1)].count('.')
    ans=min(cnt,ans)
print(ans)
Problem p03071 (python)

Fixed submission:
A,B=map(int, input().split())
if A>B:
  print(2*A-1)
elif A==B:
  print(2*A)
else:
  print(2*B-1)

Buggy submission (verdict: Runtime Error):
n = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))

m = a[0]
k = b[0]
for i in range(n):
    if a[i] >b[i] :
        ans += a[i]-b[i]
print(ans)

Buggy submission (verdict: Runtime Error):
A,B=map(int, input().split())
if A>B:
  print(2*A-1)
elif A=B:
  print(2*A)
else:
  print(2*B-1)

Buggy submission (verdict: Runtime Error):
A,B=map(int, input().split())
if A>B:
  print(2*A-1)
elif A=B:
  print(2*A-2)
else:
  print(2*B-1)