Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Runtime Error):

S = input()
l=len(S)
if l%2==0:
    s=S[int(l/2)]
    for i in range(int(l/2)):
        if S[int(l/2)-1-i]!=s or S[int(l/2)+i]!=s:
            break
    print(int(l/2)+i)
else:
    s=S[int(l/2)]
    for i in range(int(l/2)):
        if S[int(l/2)-1-i]!=s or S[int(l/2)+1+i]!=s:
            break
    print(int(l/2)+1+i)

Fixed submission:

S = input()
l=len(S)
if l%2==0:
    count=0
    s=S[int(l/2)]
    for i in range(int(l/2)):
        if S[int(l/2)-1-i]!=s or S[int(l/2)+i]!=s:
            break
        count+=1
    print(int(l/2)+count)
else:
    s=S[int(l/2)]
    count=0
    for i in range(int(l/2)):
        if S[int(l/2)-1-i]!=s or S[int(l/2)+1+i]!=s:
            break
        count+=1
    print(int(l/2)+1+count)
Buggy python submission (verdict: Runtime Error):

N=input()
s=0
for i in N:
    s+=int(i)
    
if N%s==0:
    print("Yes")
else:
    print("No")

Fixed submission:

N=input()
s=0
for i in N:
    s+=int(i)
    
if int(N)%s==0:
    print("Yes")
else:
    print("No")
Buggy python submission (verdict: Runtime Error):

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

prog = [[] for i in range(C)]

for i in range(N):
    s,t,c = list(map(int,input().split()))
    prog[c].append([s,t])

ttable = [0 for i in range(2*(10**5)+2)]
for i in range(C):
    table = [0 for i in range(2*(10**5)+2)]
    for p in prog[i]:
        table[2*p[0]-1]+= 1
        table[2*p[1]]+= -1
    tsum = 0
    for i in range(2*(10**5)+2):
        tsum+=table[i]
        ttable[i]+=tsum
print(max(ttable))

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

P = [[] for i in range(C)]

for i in range(N):
    s,t,c = list(map(int,input().split()))
    P[c-1].append([s,"S"])
    P[c-1].append([t,"T"])

P = [sorted(sorted(P[i],key=lambda x:x[1]),key=lambda x: x[0]) for i in range(C)]
#print(P)
P2 = []

for i in range(C):
    for j in range(len(P[i])):
        if P[i][j][1]=="T":
            if j!=0:
                if P[i][j][0]!=P[i][j-1][0]:
                    P2.append(P[i][j])
            else:
                P2.append(P[i][j])
        else:
            if j!=len(P[i])-1:
                if P[i][j][0]!=P[i][j+1][0]:
                    P2.append([P[i][j][0]-0.5,P[i][j][1]])
            else:
                P2.append([P[i][j][0]-0.5,P[i][j][1]])

P = P2
P = sorted(P,key=lambda x:x[0])

count=0
max_count=0
s_buf = 0
t_buf = 0

prev = -1
for i in range(len(P)):
    if prev!=P[i][0]:
        prev=P[i][0]
        count+=s_buf-t_buf
        s_buf=0
        t_buf=0
        max_count=max(count,max_count)
    if P[i][1]=="S":
        s_buf+=1
    else:
        t_buf+=1
#print(P)
count+=s_buf-t_buf
max_count=max(count,max_count)

print(max_count)
Buggy python submission (verdict: Runtime Error):

S = input()

T = []

x_list = []

temp = 0
for i in range(len(S)):
    if S[i]!="x":
        T.append(S[i])
        x_list.append(temp)
        temp=0
    else:
        temp+=1
x_list.append(temp)

U = T[::-1]
flag=False
for i in range(len(T)):
    if T[i]!=U[i]:
        flag=True
        break

if flag:
    print(-1)
else:
    count=0
    for i in range(len(x_list)//2):
        count+=abs(x_list[i]-x_list[len(x_list)-i])

    print(count)

Fixed submission:
S = input()

T = []

x_list = []

temp = 0
for i in range(len(S)):
    if S[i]!="x":
        T.append(S[i])
        x_list.append(temp)
        temp=0
    else:
        temp+=1
x_list.append(temp)

U = T[::-1]
flag=False
for i in range(len(T)):
    if T[i]!=U[i]:
        flag=True
        break

if flag:
    print(-1)
else:
    count=0
    for i in range(len(x_list)//2):
        count+=abs(x_list[i]-x_list[len(x_list)-1-i])

    print(count)
Buggy python submission (verdict: Time Limit Exceeded):

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

xy_list = []
for i in range(N):
    xy_list.append(list(map(int,input().split())))
min_s = 10**28    
for i in range(N):
    for j in range(i+1,N):
        for k in range(N):
            for l in range(k+1,N):
                max_x = max(xy_list[i][0],xy_list[j][0])
                min_x = min(xy_list[i][0],xy_list[j][0])
                max_y = max(xy_list[k][1],xy_list[l][1])
                min_y = min(xy_list[k][1],xy_list[l][1])
                count = 0
                for m in range(N):
                    if max_x>=xy_list[m][0] and min_x<=xy_list[m][0] and max_y>=xy_list[m][1] and min_y<=xy_list[m][1]:
                        count+=1
                if count==K:
                    min_s = min((max_x-min_x)*(max_y-min_y),min_s)

print(min_s)

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

X = []
Y = []
Z = []
for i in range(N):
    x,y = list(map(int,input().split()))
    X.append(x)
    Y.append(y)
    Z.append([x,y])

X.sort()
Y.sort()

min_rec=10**27

for i in range(N-1):
    for j in range(i+1,N):
        for k in range(N-1):
            for l in range(k+1,N):
                count=0
                for n in range(N):
                    if Z[n][0]>=X[i] and Z[n][0]<=X[j] and Z[n][1]>=Y[k] and Z[n][1]<=Y[l]:
                        count+=1
                if count==K:
                    min_rec = min(min_rec,(X[j]-X[i])*(Y[l]-Y[k]))

print(min_rec)
Buggy python submission (verdict: Runtime Error):
N=int(raw_input())
A = [0 for i in range(10**9)]

for i in range(N):
    a=int(raw_input())
    A[a-1]=(A[a-1]+1)%2

print(sum(A))

Fixed submission:
N=int(raw_input())
A = []
for i in range(N):
    A.append(int(raw_input()))

A.sort()
prev=A[0]
count=1
all_count=0
for i in range(1,N):
    if prev==A[i]:
        count+=1
    else:
        prev=A[i]
        all_count+=count%2
        count=1
all_count+=count%2

print all_count

Buggy python submission (verdict: Time Limit Exceeded):
N=int(raw_input())
A = [0 for i in range(100000000)]

for i in range(N):
    a=int(raw_input())
    A[a-1]=(A[a-1]+1)%2

print sum(A)

Fixed submission:
N=int(raw_input())
A = []
for i in range(N):
    A.append(int(raw_input()))

A.sort()
prev=A[0]
count=1
all_count=0
for i in range(1,N):
    if prev==A[i]:
        count+=1
    else:
        prev=A[i]
        all_count+=count%2
        count=1
all_count+=count%2

print all_count

Buggy python submission (verdict: Runtime Error):
N=int(raw_input())
A = [0 for i in range(10000000000)]

for i in range(N):
    a=int(raw_input())
    A[a-1]=(A[a-1]+1)%2

print(sum(A))

Fixed submission:
N=int(raw_input())
A = []
for i in range(N):
    A.append(int(raw_input()))

A.sort()
prev=A[0]
count=1
all_count=0
for i in range(1,N):
    if prev==A[i]:
        count+=1
    else:
        prev=A[i]
        all_count+=count%2
        count=1
all_count+=count%2

print all_count

Buggy python submission (verdict: Runtime Error):
N=int(raw_input())

A = [0 for i in range(N)]

for i in range(N):
    a=int(raw_input())
    A[a-1]=(A[a-1]+1)%2

print sum(A)

Fixed submission:
N=int(raw_input())
A = []
for i in range(N):
    A.append(int(raw_input()))

A.sort()
prev=A[0]
count=1
all_count=0
for i in range(1,N):
    if prev==A[i]:
        count+=1
    else:
        prev=A[i]
        all_count+=count%2
        count=1
all_count+=count%2

print all_count

Buggy python submission (verdict: Runtime Error):
N=int(raw_input())

A = [0 for i in range(N)]

for i in range(N):
    a=int(raw_input())
    A[a-1]=(a-1]+1)%2

print sum(A)

Fixed submission:
N=int(raw_input())
A = []
for i in range(N):
    A.append(int(raw_input()))

A.sort()
prev=A[0]
count=1
all_count=0
for i in range(1,N):
    if prev==A[i]:
        count+=1
    else:
        prev=A[i]
        all_count+=count%2
        count=1
all_count+=count%2

print all_count

Buggy python submission (verdict: Runtime Error):
N=int(raw_input())

A = [0 for i in range(N)]

for i in range(N):
    A[int(raw_input())-1]=(A[int(raw_input())-1]+1)%2

print sum(A)

Fixed submission:
N=int(raw_input())
A = []
for i in range(N):
    A.append(int(raw_input()))

A.sort()
prev=A[0]
count=1
all_count=0
for i in range(1,N):
    if prev==A[i]:
        count+=1
    else:
        prev=A[i]
        all_count+=count%2
        count=1
all_count+=count%2

print all_count
Buggy python submission (verdict: Runtime Error):

N,M = list(map(int,input().split()))
path = [[False,False] for i in range(N)]
flag=False
for i in range(M):
    a,b = list(map(int,input().split()))
    if a=N-1:
        if path[b-1][0]:
            flag=True
            
        path[b-1][1]=True
    if a=0:
        if path[b-1][1]:
            flag=True
            
        path[b-1][0]=True
    if b=N-1:
        if path[a-1][0]:
            flag=True
            
        path[a-1][1]=True
    if b=0:
        if path[a-1][1]:
            flag=True
            
        path[a-1][0]=True

if flag:
    print("POSSIBLE")
else:
    print("IMPOSSIBLE")

Fixed submission:
N,M = list(map(int,input().split()))
path = [[False,False] for i in range(N)]
flag=False
for i in range(M):
    a,b = list(map(int,input().split()))
    if a==N:
        if path[b-1][0]:
            flag=True
            
        path[b-1][1]=True
    if a==1:
        if path[b-1][1]:
            flag=True
            
        path[b-1][0]=True
    if b==N:
        if path[a-1][0]:
            flag=True
            
        path[a-1][1]=True
    if b==1:
        if path[a-1][1]:
            flag=True
            
        path[a-1][0]=True

if flag:
    print("POSSIBLE")
else:
    print("IMPOSSIBLE")

Buggy python submission (verdict: Runtime Error):

N,M = list(map(int,input().split()))
path = [[False,False] for i in range(N)]
flag=False
for i in range(M):
    a,b = list(map(int,input().split()))
    if a=N-1:
        if path[b-1][0]:
            flag=True
            break
        path[b-1][1]=True
    if a=0:
        if path[b-1][1]:
            flag=True
            break
        path[b-1][0]=True
    if b=N-1:
        if path[a-1][0]:
            flag=True
            break
        path[a-1][1]=True
    if b=0:
        if path[a-1][1]:
            flag=True
            break
        path[a-1][0]=True

if flag:
    print("POSSIBLE")
else:
    print("IMPOSSIBLE")

Fixed submission:
N,M = list(map(int,input().split()))
path = [[False,False] for i in range(N)]
flag=False
for i in range(M):
    a,b = list(map(int,input().split()))
    if a==N:
        if path[b-1][0]:
            flag=True
            
        path[b-1][1]=True
    if a==1:
        if path[b-1][1]:
            flag=True
            
        path[b-1][0]=True
    if b==N:
        if path[a-1][0]:
            flag=True
            
        path[a-1][1]=True
    if b==1:
        if path[a-1][1]:
            flag=True
            
        path[a-1][0]=True

if flag:
    print("POSSIBLE")
else:
    print("IMPOSSIBLE")
Buggy python submission (verdict: Runtime Error):

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

vi = 0 #時と場合によってここを変える
from collections import deque
Q = deque([vi])
checked_list = [False for i in range(N)]
checked_list[vi]=True
prev_list = [-1 for i in range(N)]
min_path_list = [10**27 for i in range(N)] #問題によりここを変える
min_path_list[vi] = 0
while len(Q)>0:
    v = Q.pop()
    for v1 in e_list[v]:
        if not checked_list[v1]:
            checked_list[v1]=True
            Q.appendleft(v1)
            prev_list[v1]=v
            min_path_list[v1]=min(min_path_list[v1],min_path_list[v]+1) #問題によりここを変える

path = [N-1]
v=N-1
while prev_list[v]!=-1:
    path.append(prev_list[v])
    v=prev_list[v]

a=path[(min_path_list[N-1]-1)//2]
b=path[(min_path_list[N-1]-1)//2+1]
for i in range(len(e_list[a])):
    if e_list[a][i]==b:
        break
del e_list[a][i]

for i in range(len(e_list[b])):
    if e_list[b][i]==a:
        break
del e_list[b][i]

vi = 0 #時と場合によってここを変える

Q = deque([vi])
checked_list = [False for i in range(N)]
checked_list[vi]=True
count = 1
while len(Q)>0:
    v = Q.pop()
    for v1 in e_list[v]:
        if not checked_list[v1]:
            checked_list[v1]=True
            Q.appendleft(v1)
            count+=1

if count>N-count:
    print("Fennec")
else:
    print("Snuke")

Fixed submission:

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

S=[0]
s = 0
for i in range(N):
    s+=a[i]
    S.append(s)
ans=10**28
for i in range(1,N):
    ans=min(abs(S[N]-2*S[i]),ans)
print(ans)
Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np

N,A,B = list(map(int,input().split()))
h=[]
for i in range(N):
    h.append(int(input()))

def jugde(n):
    count = 0
    for i in range(N):
        count+=max(np.ceil((h[i]-B*n)/(A-B)),0)
    if count<=n:
        return True
    else:
        return False

def bisect(i,j):
    if j-i==1:
        return j
    else:
        if jugde((i+j)//2):
            return bisect(i,(i+j)//2)
        else:
            return bisect((i+j)//2,j)

print(bisect(0,10**9))

Fixed submission:

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

h=[]
for i in range(N):
    h.append(int(input()))

def jugde(n):
    count = 0
    for i in range(N):
        if (h[i]-B*n)%(A-B)==0:
            count+=max((h[i]-B*n)//(A-B),0)
        else:
            count+=max((h[i]-B*n)//(A-B)+1,0)
    if count<=n:
        return True
    else:
        return False

def bisect(i,j):
    if j-i==1:
        return j
    else:
        if jugde((i+j)//2):
            return bisect(i,(i+j)//2)
        else:
            return bisect((i+j)//2,j)

print(bisect(0,10**9))
Buggy python submission (verdict: Runtime Error):

def power(N):
    ans=1
    for i in range(N):
        ans=(ans*2)%(10**9+7)
    return ans

N=int(input())

A = map(int,input().split())
flag=True
if N%2==0:
    n = [0 for i in range(N/2)]
    for a in A:
        if a%2==0:
            print(0)
            flag=False
            break
        if (a-1)/2 in range(N/2):
            n[(a-1)/2]+=1
            if n[(a-1)/2]==3:
                print(0)
                flag=False
                break
        else:
            print(0)
            flag=False
            break
    if flag:
        print(power(N/2))
    
else:
    n = [0 for i in range((N+1)/2)]
    for a in A:
        if a%2==1:
            print(0)
            flag=False
            break
        if a/2 in range((N+1)/2):
            n[a/2]+=1
            if a==0:
                if n[a]==2:
                    print(0)
                    flag=False
                    break
            elif n[a/2]==3:
                print(0)
                flag=False
                break
        else:
            print(0)
            flag=False
            break
    if flag:
        print(power((N-1)/2))
        

Fixed submission:

N = int(raw_input())
A = map(int,raw_input().split())

flag=True
if N%2==0:
    l = [0 for i in range(N/2)]
    for i in range(N):
        if A[i]%2!=1 or A[i]>=N or A[i]<=0:
            print 0
            flag=False
            break
        l[(A[i]-1)/2]+=1
        if l[(A[i]-1)/2]>=3:
            print 0
            flag=False
            break
    if flag:
        print (2**(N/2))%(10**9+7)
else:
    l = [0 for i in range((N+1)/2)]
    for i in range(N):
        if A[i]%2!=0 or A[i]>=N or A[i]<0:
            print 0
            flag=False
            break
        if A[i]==0:
            l[0]+=1
            if l[0]>=2:
                print 0
                flag=False
                break
        else:
            l[A[i]/2]+=1
            if l[A[i]/2]>=3:
                print 0
                flag=False
                break        
    if flag:
        print (2**((N-1)/2))%(10**9+7)
Buggy python submission (verdict: Runtime Error):

def itoa(i):
    if i==0:
        return "a"
    elif i==1:
        return "b"
    elif i==2:
        return "c"
    elif i==3:
        return "d"
    elif i==4:
        return "e"
    elif i==5:
        return "f"
    elif i==6:
        return "g"
    elif i==7:
        return "h"
    elif i==8:
        return "i"
    elif i==9:
        return "j"
    elif i==10:
        return "k"
    elif i==11:
        return "l"
    elif i==12:
        return "m"
    elif i==13:
        return "n"
    elif i==14:
        return "o"
    elif i==15:
        return "p"
    elif i==16:
        return "q"
    elif i==17:
        return "r"
    elif i==18:
        return "s"
    elif i==19:
        return "t"
    elif i==20:
        return "u"
    elif i==21:
        return "v"
    elif i==22:
        return "w"
    elif i==23:
        return "x"
    elif i==24:
        return "y"
    elif i==25:
        return "z"



H,W = list(map(int,input().split()))
S = []
for i in range(H):
    S.append(list(map(int,input().split())))

for i in range(H):
    for j in range(W):
        if S[i][j]=="snuke":
            print(itoa(j).upper()+str(i))
        break

Fixed submission:

def itoa(i):
    if i==0:
        return "a"
    elif i==1:
        return "b"
    elif i==2:
        return "c"
    elif i==3:
        return "d"
    elif i==4:
        return "e"
    elif i==5:
        return "f"
    elif i==6:
        return "g"
    elif i==7:
        return "h"
    elif i==8:
        return "i"
    elif i==9:
        return "j"
    elif i==10:
        return "k"
    elif i==11:
        return "l"
    elif i==12:
        return "m"
    elif i==13:
        return "n"
    elif i==14:
        return "o"
    elif i==15:
        return "p"
    elif i==16:
        return "q"
    elif i==17:
        return "r"
    elif i==18:
        return "s"
    elif i==19:
        return "t"
    elif i==20:
        return "u"
    elif i==21:
        return "v"
    elif i==22:
        return "w"
    elif i==23:
        return "x"
    elif i==24:
        return "y"
    elif i==25:
        return "z"


H,W = list(map(int,input().split()))
S = []
for i in range(H):
    S.append(input().split())

for i in range(H):
    for j in range(W):
        if S[i][j]=="snuke":
            print(itoa(j).upper()+str(i+1))
Buggy python submission (verdict: Runtime Error):

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

q = [0 for i in range(N)]

for i in range(N):
    q[p[i]-1]=i+1

a = [(i+1)*N  for i in range(N)]
b = [(N-i-1)*N + q[i] for i in range(N)]
print(" ".join(a))
print(" ".join(b))

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

q = [0 for i in range(N)]

for i in range(N):
    q[p[i]-1]=i+1

a = [str((i+1)*N)  for i in range(N)]
b = [str((N-i-1)*N + q[i]) for i in range(N)]
print(" ".join(a))
print(" ".join(b))
Buggy python submission (verdict: Runtime Error):

Sa = input()
Sb = input()
Sc = input()
flg=True
nxt = "a"
while flg:
    if nxt=="a":
        if len(Sa)==0:
            break
            winner = "A"
        nxt = Sa[0]
        Sa=Sa[1:]
    elif nxt=="b":
        if len(Sb)==0:
            break
            winner = "B"
        nxt = Sb[0]
        Sb=Sb[1:]
    elif nxt=="c":
        if len(Sc)==0:
            break
            winner = "C"
        nxt = Sc[0]
        Sc=Sc[1:]

print(winner)

Fixed submission:


Sa = input()
Sb = input()
Sc = input()
flg=True
nxt = "a"
while flg:
    if nxt=="a":
        if len(Sa)==0:
            winner = "A"
            break
        nxt = Sa[0]
        Sa=Sa[1:]
    elif nxt=="b":
        if len(Sb)==0:
            winner = "B"
            break
        nxt = Sb[0]
        Sb=Sb[1:]
    elif nxt=="c":
        if len(Sc)==0:
            winner = "C"
            break
        nxt = Sc[0]
        Sc=Sc[1:]

print(winner)

Buggy python submission (verdict: Runtime Error):

Sa = input()
Sb = input()
Sc = input()
flg=True
nxt = "a"
while flg:
    if nxt=="a":
        if len(Sa)==0:
            flg=False
            winner = "A"
        nxt = Sa[0]
        Sa=Sa[1:]
    elif nxt=="b":
        if len(Sb)==0:
            flg=False
            winner = "B"
        nxt = Sb[0]
        Sb=Sb[1:]
    elif nxt=="c":
        if len(Sc)==0:
            flg=False
            winner = "C"
        nxt = Sc[0]
        Sc=Sc[1:]

print(winner)

Fixed submission:


Sa = input()
Sb = input()
Sc = input()
flg=True
nxt = "a"
while flg:
    if nxt=="a":
        if len(Sa)==0:
            winner = "A"
            break
        nxt = Sa[0]
        Sa=Sa[1:]
    elif nxt=="b":
        if len(Sb)==0:
            winner = "B"
            break
        nxt = Sb[0]
        Sb=Sb[1:]
    elif nxt=="c":
        if len(Sc)==0:
            winner = "C"
            break
        nxt = Sc[0]
        Sc=Sc[1:]

print(winner)
Buggy python submission (verdict: Runtime Error):

H,W = list(map(int,input().split()))

a = [input() for i in range(H)]

b = [[] for i in range(H)]
r = [[] for i in range(H)]
for i in range(H):
    for j in range(W):
        if i==0:
            b[i].append("#")
            r[i].append(".")
        elif i==H-1:
            b[i].append(".")
            r[i].append("#")
        elif S[i][j]=="#":
            b[i].append(".")
            r[i].append("#")
        elif j%2==0:
            b[i].append(".")
            r[i].append("#")
        elif j%2==1:
            b[i].append("#")
            r[i].append(".")

for i in range(H):
    ans = ""
    for j in range(W):
        ans = ans+b[i][j]

    print(ans)
print("")

for i in range(H):
    ans = ""
    for j in range(W):
        ans = ans+r[i][j]

    print(ans)

Fixed submission:
H,W = list(map(int,input().split()))

a = [input() for i in range(H)]

b = [[] for i in range(H)]
r = [[] for i in range(H)]
for i in range(H):
    for j in range(W):
        if i==0:
            b[i].append("#")
            r[i].append(".")
        elif i==H-1:
            b[i].append(".")
            r[i].append("#")
        elif a[i][j]=="#":
            b[i].append("#")
            r[i].append("#")
        elif j%2==0:
            b[i].append(".")
            r[i].append("#")
        elif j%2==1:
            b[i].append("#")
            r[i].append(".")

for i in range(H):
    ans = ""
    for j in range(W):
        ans = ans+b[i][j]

    print(ans)
print("")

for i in range(H):
    ans = ""
    for j in range(W):
        ans = ans+r[i][j]

    print(ans)
Buggy python submission (verdict: Runtime Error):


def nibutan2(array,value,left,right,first = True):
    if first:
        if array[left]>value:
            return 0
        elif array[right]<value:
            return len(array)
    if right-left<=1:
        return right
    else:
        i=(left+right)//2
        if array[i]>value:
            return nibutan2(array,value,left,i,False)
        elif array[i]<value:
            return nibutan2(array,value,i,right,False)


N=int(input())
A=[]
B=[]
for i in range(N):
    if i%2==0:
        A.append(int(input()))
    else:
        B.append(int(input()))

A.sort()
B.sort()

count=0

for i in range(len(A)):
    c=nibutan2(B,A[i],0,len(B)-1)
    count+=abs(c-i)

print(count)

Fixed submission:
N=int(input())
A=[]
for i in range(N):
    A.append(int(input()))

B=sorted(A)

C=[]
D=[]

for i in range(N):
    if i%2==0:
        C.append(A[i])
        D.append(B[i])
        
print((N+1)//2-len(set(C) & set(D)))

Buggy python submission (verdict: Runtime Error):
def nibutan2(array,value,left,right,first = True):
    if first:
        if array[left]>value:
            return 0
        elif array[right]<value:
            return len(array)
    if right-left<=1:
        return right
    else:
        i=(left+right)//2
        if array[i]>value:
            return nibutan(array,value,left,i,False)
        elif array[i]<value:
            return nibutan(array,value,i,right,False)


N=int(input())
A=[]
B=[]
for i in range(N):
    if i%2==0:
        A.append(int(input()))
    else:
        B.append(int(input()))

A.sort()
B.sort()

count=0

for i in range(len(A)):
    c=nibutan2(B,A[i],0,len(B)-1)
    count+=abs(c-i)

print(count)

Fixed submission:
N=int(input())
A=[]
for i in range(N):
    A.append(int(input()))

B=sorted(A)

C=[]
D=[]

for i in range(N):
    if i%2==0:
        C.append(A[i])
        D.append(B[i])
        
print((N+1)//2-len(set(C) & set(D)))
Buggy python submission (verdict: Runtime Error):

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

a=np.array(a)
min_s = 10**29
for i in range(201):
    s=np.sum((a-np.ones(N)*(i-100))**2)
    min_s = min(int(s),min_s)
print(min_s)

Fixed submission:
import numpy as np
N=int(input())
a=list(map(int,input().split()))

a=np.array(a)
min_s = 10**29
for i in range(201):
    s=np.sum((a-np.ones(N)*(i-100))**2)
    min_s = min(int(s),min_s)
print(min_s)