Harryxun/testdata huggingface dataset:
Buggy python submission (verdict: Time Limit Exceeded):
import sys
n, a, b = map(int, input().split())
if a == 0 or n == 0:
    print(0)
    sys.exit()
for i in range(n //(a + b) + 1):
    if (a + b) * i <= n < (a + b) * (i + 1):
        j = i
        break
if n - (a + b) * j >= a:
    print(a * j + a)
    sys.exit()
else:
    print(a * j + n- (a + b)*j )
    sys.exit()

Fixed submission:
import sys
n, a, b = map(int, input().split())
if a == 0 or n == 0:
    print(0)
    sys.exit()
j = n //(a + b)

if n - (a + b) * j >= a:
    print(a * j + a)
    sys.exit()
else:
    print(a * j + n- (a + b)*j )
    sys.exit()

Buggy python submission (verdict: Runtime Error):
import sys
n, a, b = map(int, input().split())
if (a + b) * (10**100) <= n:
    print(a * (10**100))
    sys.exit()
else:
    for i in range(n):
        if (a + b) * i <= n < (a + b) * (i + 1):
            j = i
            break
if n - (a + b) * j >= a:
    print(a * j + a)
    sys.exit()
else:
    print(a * j +n-(a + b)*j )
    sys.exit()

Fixed submission:
import sys
n, a, b = map(int, input().split())
if a == 0 or n == 0:
    print(0)
    sys.exit()
j = n //(a + b)

if n - (a + b) * j >= a:
    print(a * j + a)
    sys.exit()
else:
    print(a * j + n- (a + b)*j )
    sys.exit()
Buggy python submission (verdict: Runtime Error):
n = int(input())
p = [str(input()) for _ in range(n)]
import collections
c = collections.Counter(p)
m = max(c.values())
keys = [k for k, v in d.items() if v == m]
keys.sort()
for i in keys:
    print(i)

Fixed submission:
n = int(input())
p = [str(input()) for _ in range(n)]
import collections
c = collections.Counter(p)
m = max(c.values())
keys = [k for k, v in c.items() if v == m]
keys.sort()
for i in keys:
    print(i)

Buggy python submission (verdict: Runtime Error):
n = int(input())
p = [str(input()) for _ in range(n)]
import collections
c = collections.Counter(p)
m = max(c.values())
keys = [k for k, v in d.items() if v == m]
sorted(keys)
for i in keys:
    print(i)

Fixed submission:
n = int(input())
p = [str(input()) for _ in range(n)]
import collections
c = collections.Counter(p)
m = max(c.values())
keys = [k for k, v in c.items() if v == m]
keys.sort()
for i in keys:
    print(i)
Buggy python submission (verdict: Runtime Error):
n = int(input())
a = list(map(int,input().spllit()))
now = 1
brok = 0
for i in range(n):
    if(a[i] == now):
        brok += 1
    else:
        now += 1
if(now == 1):
    print(-1)
else:
    print(brok)

Fixed submission:
n = int(input())
A = list(map(int, input().split()))
now = 1
brok = 0
for i in range (n):
    if(A[i] != now):
        brok += 1
    else:
        now += 1
if(now == 1):
    print(-1)
else:
    print(brok)

Buggy python submission (verdict: Runtime Error):
n = int(input())
a = list(map(int,input().spllit()))
now = 1
brok = 0
for i in range(n):
    if(a[i] = now):
        brok += 1
    else:
        now += 1
if(now == 1):
    print(-1)
else:
    print(brok)

Fixed submission:
n = int(input())
A = list(map(int, input().split()))
now = 1
brok = 0
for i in range (n):
    if(A[i] != now):
        brok += 1
    else:
        now += 1
if(now == 1):
    print(-1)
else:
    print(brok)

Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
c = list(map(int, input().split()))
ln = []
if c.count(1) == 0:
    print(-1)
else:
    c2 = c
    for i in range (1, max(c)+1):
        if i in c2 :
            s = c2.index(i)
            ln.append(i)
            del c2[:s + 1]
            if len(c2) == 1 and  i + 1 in c2:
                    ln.append(i + 1)
        else:
            break
    print(n - max(ln))   

Fixed submission:
n = int(input())
A = list(map(int, input().split()))
now = 1
brok = 0
for i in range (n):
    if(A[i] != now):
        brok += 1
    else:
        now += 1
if(now == 1):
    print(-1)
else:
    print(brok)

Buggy python submission (verdict: Runtime Error):
n = int(input())
c = list(map(int, input().split()))
ln = []
if c.count(1) == 0:
    print(-1)
else:
    c2 = c
    for i in range (1, max(c)+1):
        if i in c2 :
            s = c2.index(i)
            ln.append(i)
            del c2[:s + 1]
            if len(c2) == 1 and  i + 1 in c2:
                    ln.append(i + 1)
        else:
            break
print(n - max(ln))   

Fixed submission:
n = int(input())
A = list(map(int, input().split()))
now = 1
brok = 0
for i in range (n):
    if(A[i] != now):
        brok += 1
    else:
        now += 1
if(now == 1):
    print(-1)
else:
    print(brok)

Buggy python submission (verdict: Runtime Error):
n = int(input())
c = list(map(int, input().split()))
ln = []
if c.count(1) == 0:
    print(-1)
elif n == 1 and c == [1]:
    print(0)
if c.count(1) != 0 and n != 1:
    c2 = c
    for i in range (1, max(c)):
        if i in c2 :
            s = c2.index(i)
            ln.append(i)
            del c2[:s + 1]
            if len(c2) == 1:
                if i + 1 in c2:
                    ln.append(i + 1)
        else:
            break
    print(n - max(ln))

Fixed submission:
n = int(input())
A = list(map(int, input().split()))
now = 1
brok = 0
for i in range (n):
    if(A[i] != now):
        brok += 1
    else:
        now += 1
if(now == 1):
    print(-1)
else:
    print(brok)
Buggy python submission (verdict: Time Limit Exceeded):
a = int(input())
b = list(map(int, input().split()))
for i in range(a+1):
        if sum(b[0:i-1]) == sum(b)/2:
            print(0)
        if sum(b[0:i-1]) < sum(b)/2 < sum(b[0:i]):
                v = sum(b[0:i])- (sum(b)-sum(b[0:i]))
                u = (sum(b)-sum(b[0:i - 1]))-sum(b[0:i -1])
                print(min(v,u)) 

Fixed submission:
a = int(input())
b = list(map(int, input().split()))
import bisect
ln = []
x = 0
for i in b:
    x += i
    ln.append(x)
index = bisect.bisect_left(ln, sum(b)/2)
if sum(b[0:index -1]) == sum(b)/2:
            print(0)
else:
                v =  sum(b[0:index + 1])- (sum(b)-sum(b[0:index + 1]))
                u = (sum(b)-sum(b[0:index]))-sum(b[0:index])
                print(min(v,u))

Buggy python submission (verdict: Time Limit Exceeded):
a = int(input())
b = list(map(int, input().split()))
for i in range(a):
        if sum(b[0:i-1]) == sum(b)/2:
            print(0)
            break
        if sum(b[0:i-1]) < sum(b)/2 < sum(b[0:i]):
                v = sum(b[0:i])- (sum(b)-sum(b[0:i]))
                u = (sum(b)-sum(b[0:i - 1]))-sum(b[0:i -1])
                print(min(v,u)) 
if a == 2:
     print(abs(b[0]-b[1]))

Fixed submission:
a = int(input())
b = list(map(int, input().split()))
import bisect
ln = []
x = 0
for i in b:
    x += i
    ln.append(x)
index = bisect.bisect_left(ln, sum(b)/2)
if sum(b[0:index -1]) == sum(b)/2:
            print(0)
else:
                v =  sum(b[0:index + 1])- (sum(b)-sum(b[0:index + 1]))
                u = (sum(b)-sum(b[0:index]))-sum(b[0:index])
                print(min(v,u))
Buggy python submission (verdict: Runtime Error):
import math
import numpy as np
a = int(input())
t = [list(map(int, input().split())) for i in range(a)]
x = 0
for i in range(a):
    for j in range(a):
        x = x + np.sqrt((t[i][0]-t[j][0])**2 +(t[i][1]-t[j][1])**2)
print(x*math.factorial(a-1)/(math.factorial(a)))  

Fixed submission:
import math
a = int(input())
t = [list(map(int, input().split())) for i in range(a)]
x = 0
for i in range(a):
    for j in range(a):
        x = x + ((t[i][0]-t[j][0])**2 +(t[i][1]-t[j][1])**2)**0.5
print(x*math.factorial(a-1)/(math.factorial(a)))
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
d = list(map(int, input().split()))
if d[0] != 0:
    print(0)
else:
    x = 1
    for i in range(min(d), max(d)):
        x = x * (d.count(i) ** d.count(i+1))
    print(x%998244353)

Fixed submission:
n = int(input())
d = list(map(int, input().split()))
if d[0] != 0:
    print(0)
else:
    import collections
    c = collections.Counter(d)
    c_sorted = sorted(c.items())
    u = [x[1] for x in c_sorted]
    u.remove(u[0])
    if len(u)!= max(d):
        print(0)
    else:
        if d.count(0) > 1:
            print(0)
        else:
            x = 1
            for i in range(len(u)-1):
                x = x * (u[i] ** u[i+1])
                 
            print(x%998244353)
Buggy python submission (verdict: Runtime Error):
import math
a, b, x = map(int, input().split())
if x >= (0.5 * a**2 * b):
    z = (math.atan(a**3/(2*(a**2*b - x))))
    print(90 - math.degrees(z))
else:
    z = (math.atan(2*x/(a * b**2)))
    print(90 - math.degrees(z))

Fixed submission:
import math
a, b, x = map(int, input().split())
if x == a**2 * b:
    print(0)
else:
    if x >= (0.5 * a**2 * b):
        z = (math.atan(a**3/(2*(a**2*b - x))))
        print(90 - math.degrees(z))
    else:
        z = (math.atan(2*x/(a * b**2)))
        print(90 - math.degrees(z))
Buggy python submission (verdict: Runtime Error):
 a, b = map(int, input().split())
def curtain(a,b):
    if a <= b*2:
        return 0
    else:
        return a - b * 2
print(curtain(a,b))

Fixed submission:
a, b = map(int, input().split())
def curtain(a,b):
    if a <= b*2:
        return 0
    else:
        return a - b * 2
print(curtain(a,b))
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
h = str(input())
h = list(h)
h2 = list(h)
def mojiretu(n, h):
    for i in range(0, n - 1):
            if h[i] == h[i + 1]:
                h2.remove(h[i])
    return len(h2)
print(mojiretu(n,h))

Fixed submission:
n = int(input())
h = str(input())
h = list(h)
h2 = []
def mojiretu(n, h):
    h2.append(h[0])
    for i in range(1, len(h)):
            if h[i] != h[i - 1]:
                h2.append(h[i])
    return len(h2)
print(mojiretu(n,h))

Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
h = str(input())
h = list(h)
h2 = list(h)
def mojiretu(n, h):
    for i in range(0, len(h) - 1):
            if h[i] == h[i + 1]:
                h2.remove(h[i])
    return len(h2)
print(mojiretu(n,h))

Fixed submission:
n = int(input())
h = str(input())
h = list(h)
h2 = []
def mojiretu(n, h):
    h2.append(h[0])
    for i in range(1, len(h)):
            if h[i] != h[i - 1]:
                h2.append(h[i])
    return len(h2)
print(mojiretu(n,h))

Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
h = str(input())
h = list(h)
h2 = list(h)
def mojiretu(n, h):
    for i in range(0, len(h) - 1):
            if h[i] == h[i + 1]:
                h2.remove(h[i])
    return len(h2)
print(mojiretu(n,h))

Fixed submission:
n = int(input())
h = str(input())
h = list(h)
h2 = []
def mojiretu(n, h):
    h2.append(h[0])
    for i in range(1, len(h)):
            if h[i] != h[i - 1]:
                h2.append(h[i])
    return len(h2)
print(mojiretu(n,h))
Buggy python submission (verdict: Runtime Error):
n, k = map(int, input().split())
h_1 h_2 h_3 ... h_n
h = list(map(int, inpnt().split())) 
h_refined = [ i for i if i >=  k]
print(len(h_refined))

Fixed submission:
n, k = map(int, input().split())
h = list(map(int, input().split())) 
h_refined = [ i for i in h if i >=  k]
print(len(h_refined))
Buggy python submission (verdict: Runtime Error):
n = int(input())
a = list(map(int, input().split()))
a2 = sorted(a)
a3 = [ a2[i + 1] for i in a2 ]
print(a3)

Fixed submission:
import numpy as np
n = int(input())
a = list(map(int, input().split()))
a2 = np.argsort(a) + 1
a3 = map(str, a2) 
mojiretsu = ' '.join(a3)

print(mojiretsu)
Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np
n = list(map(int, input().split()))
h = list(map(int, input().split()))
h = sorted(h, reverse = True)
i = 0
for i in range(n[1]):
    h[0] = h[0]/2
    h = sorted(h, reverse  = True)
    i = i + 1
h = np.floor(h)
print(int(sum(h)))

Fixed submission:
import numpy as np
import heapq
n = list(map(int, input().split()))
h = list(map(lambda x: int(x)*-1, input().split()))
heapq.heapify(h)
for i in range(n[1]):
    small = heapq.heappop(h)
    heapq.heappush(h, -1*(-small//2))
print(-sum(h))

Buggy python submission (verdict: Time Limit Exceeded):
import math
n = list(map(int, input().split()))
h = list(map(int, input().split()))
h = sorted(h, reverse = True)
i = 0
for i in range(n[1]):
    h[0] = h[0]/2
    h = sorted(h, reverse  = True)
    i = i + 1
for i in range(n[0]):
    h[i]= math.floor(h[i])
print(sum(h))

Fixed submission:
import numpy as np
import heapq
n = list(map(int, input().split()))
h = list(map(lambda x: int(x)*-1, input().split()))
heapq.heapify(h)
for i in range(n[1]):
    small = heapq.heappop(h)
    heapq.heappush(h, -1*(-small//2))
print(-sum(h))
Buggy python submission (verdict: Time Limit Exceeded):
l, r = map(int, input().split())
ans = []
for i in range(l, r + 1):
    for j in range(i + 1, r + 1):
        ans.append((i * j) % 2019)
print(min(ans))

Fixed submission:
import sys
l, r = map(int, input().split())
ans = []
for i in range(l, r + 1):
    for j in range(i + 1, r + 1):
        ans.append((i * j) % 2019)
        if (i * j) % 2019 == 0:
            print(0)
            sys.exit()
print(min(ans))
Buggy python submission (verdict: Runtime Error):
n = int(input())
a = list(map(int, input().split()))
import fractions
ans = a[0]
for i in range(1, N):
    ans = fractions.gcd(ans, a[i])
print(ans)

Fixed submission:
n = int(input())
a = list(map(int, input().split()))
import fractions
ans = a[0]
for i in range(1, n):
    ans = fractions.gcd(ans, a[i])
print(ans)
Buggy python submission (verdict: Runtime Error):
n = int(input())
s = list(int(input()))
cost = s[0]
for i in range(1, n):
    if s[i - 1] < s[i]:
        cost += s[i] - s[i - 1]
print(cost)

Fixed submission:
n = int(input())
s = list(map(int, input().split()))
cost = s[0]
for i in range(1, n):
    if s[i - 1] < s[i]:
        cost += s[i] - s[i - 1]
print(cost)
Buggy python submission (verdict: Runtime Error):
import math
x = int(input())
ans = []
for j in range(math.ceil(math.sqrt(x))):
    for k in range(2,x):
        if j ** k <= x:
            ans.append(j ** k)
print(max(ans))

Fixed submission:
import math
x = int(input())
ans = []
for j in range(1, math.ceil(math.sqrt(x)) + 1):
    for k in range(2,x + 2):
        if j ** k <= x:
            ans.append(j ** k)
print(max(ans))
Buggy python submission (verdict: Time Limit Exceeded):
import copy
n = int(input())
a = list(map(int, input().split()))
a2 = copy.copy(a)
a2.sort()
for i in range(n):
    if a2.index(a[i]) <= n//2 - 1:
        print(a2[n//2])
    else:
        print(a2[n//2 - 1])

Fixed submission:
import copy
n = int(input())
a = list(map(int, input().split()))
a2 = copy.copy(a)
a2.sort()
x = a2[n//2 - 1]
y = a2[n//2]
for i in a:
    if i <= x:
        print(y)
    else:
        print(x)
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
a = list(map(int, input().split()))
a.insert(0, 0)
a.append(0)
for i in range(n):
    p = a[i + 1]
    del a[i + 1]
    ans = 0
    for j in range(len(a) - 1):
        ans += abs(a[j] - a[j + 1])
    a.insert(i + 1, p)
    print(ans)

Fixed submission:
n = int(input())
a = list(map(int, input().split()))
a.insert(0, 0)
a.append(0)
ans = 0
for j in range(len(a) - 1):
    ans += abs(a[j] - a[j + 1])
    
for i in range(n):
    p = abs(a[i + 2] - a[i])
    q = abs(a[i + 1] - a[i])
    r = abs(a[i + 1] - a[i + 2] )
    print(ans + p - q - r)
Buggy python submission (verdict: Runtime Error):
d, g  = map(int, input().split())
if d % 2 == 1 and f % 2 == 1:
    print('Odd')
else:
    print('Even')

Fixed submission:
d, g  = map(int, input().split())
if d * g  % 2 == 1:
    print('Odd')
else:
    print('Even')
Buggy python submission (verdict: Runtime Error):
import sys
s = sorted(list(str(input())))
t = sorted(list(str(input())), reverse = True)
x = 0
y = 0
for i in range(len(s)):
    if s[i] < t[i]:
        print('Yes')
        sys.exit()
    if s[i] > t[i]:
        print('No')
        sys.exit()
if s == t[:len(s)] and len(s) < len(t):
    print('Yes') 
elif s == t[:len(s)] and len(s) >= len(t):
    print('No')

Fixed submission:
import sys
s = sorted(list(str(input())))
t = sorted(list(str(input())), reverse = True)
u = min(len(s), len(t))
for i in range(min(len(s), len(t))):
    if s[i] < t[i]:
        print('Yes')
        sys.exit()
    if s[i] > t[i]:
        print('No')
        sys.exit()
if s[0:u] == t[0:u] and len(s) < len(t):
    print('Yes')
elif s[0:u] == t[0:u] and len(s) >= len(t):
    print('No')

Buggy python submission (verdict: Runtime Error):
import sys
s = sorted(list(str(input())))
t = sorted(list(str(input())), reverse = True)
x = 0
y = 0
for i in range(len(s)):
    if s[i] < t[i]:
        print('Yes')
        sys.exit()
    if s[i] == t[i]:
        x += 1
if x == len(s) and len(s) < len(t):
    print('Yes') 
elif s == t:
    print('No')

Fixed submission:
import sys
s = sorted(list(str(input())))
t = sorted(list(str(input())), reverse = True)
u = min(len(s), len(t))
for i in range(min(len(s), len(t))):
    if s[i] < t[i]:
        print('Yes')
        sys.exit()
    if s[i] > t[i]:
        print('No')
        sys.exit()
if s[0:u] == t[0:u] and len(s) < len(t):
    print('Yes')
elif s[0:u] == t[0:u] and len(s) >= len(t):
    print('No')

Buggy python submission (verdict: Runtime Error):
s = sorted(list(str(input())))
t = sorted(list(str(input())), reverse = True)
x = 0
y = 0
for i in range(len(s)):
    if s[i] < t[i]:
        print('Yes')
        break
    if s[i] == t[i]:
        x += 1
    else:
        y += 1
if x == len(s) and len(s) < len(t):
    print('Yes') 
elif s == t:
    print('No')
elif y == len(s):
    print('No')

Fixed submission:
import sys
s = sorted(list(str(input())))
t = sorted(list(str(input())), reverse = True)
u = min(len(s), len(t))
for i in range(min(len(s), len(t))):
    if s[i] < t[i]:
        print('Yes')
        sys.exit()
    if s[i] > t[i]:
        print('No')
        sys.exit()
if s[0:u] == t[0:u] and len(s) < len(t):
    print('Yes')
elif s[0:u] == t[0:u] and len(s) >= len(t):
    print('No')

Buggy python submission (verdict: Runtime Error):
s = sorted(list(str(input())))
t = sorted(list(str(input())), reverse = True)
x = 0
y = 0
for i in range(len(s)):
    if s[i] < t[i]:
        print('Yes')
        break
    if s[i] == t[i]:
        x += 1
    if x == len(s) and len(s) < len(t):
        print('Yes')
        break
    else:
        y += 1
if y == len(s):
    print('No')

Fixed submission:
import sys
s = sorted(list(str(input())))
t = sorted(list(str(input())), reverse = True)
u = min(len(s), len(t))
for i in range(min(len(s), len(t))):
    if s[i] < t[i]:
        print('Yes')
        sys.exit()
    if s[i] > t[i]:
        print('No')
        sys.exit()
if s[0:u] == t[0:u] and len(s) < len(t):
    print('Yes')
elif s[0:u] == t[0:u] and len(s) >= len(t):
    print('No')
Buggy python submission (verdict: Time Limit Exceeded):
s, t  = map(int, input().split())
u = list(map(int,input().split()))
from collections import Counter
v = Counter(u)
w = 0
for i in range(s):
    if len(v) <= t:
        print(w)
        break
    else:
        w += min(v.values())
        del v[min(v, key = v.get)]

Fixed submission:
from collections import Counter
n,k = map(int,input().split())
L = list( map(int,input().split()))
l = len(L)
L = Counter(L)
L = sorted(list(L.most_common(k)))

ans = 0
for i in range(len(L)):
    ans += L[i][1]
print(l - ans)
Buggy python submission (verdict: Time Limit Exceeded):
n = int(input())
d = list(map(int, input().split()))
m = int(input())
t = list(map(int, input().split()))

x = 0
for i in range(m):
    if t[i] in d:
        x += 1
        d.remove(t[i])
if x == m:
    print('YES')
else:
    print('NO')

Fixed submission:
from collections import Counter
 
n = int(input())
d = list(map(int, input().split()))
m = int(input())
t = list(map(int, input().split()))
 
counter1 = Counter(d)
counter2 = Counter(t)
 
for k, v in counter2.items():
    if counter1[k] < v:
        print('NO')
        exit()
print('YES')
Buggy python submission (verdict: Runtime Error):
import collections
n = int (input())
ln = []
ln2 = []
for _ in range(n):
    ln.append( int (input()))

C = collections.Counter(ln)
 
ans = 0
for v in C.items():
    if (v%2 != 0):
        ans += 1

print(ans)

Fixed submission:
import collections
n = int (input())
ln = []
ln2 = []
for _ in range(n):
    ln.append( int (input()))

C = collections.Counter(ln)
 
ans = 0
for k, v in C.items():
    if (v%2 != 0):
        ans += 1

print(ans)

Buggy python submission (verdict: Runtime Error):
n = int (input())
ln = []
ln2 = []
for _ in range(n):
    ln.append( int (input()))

C = collections.Counter(ln)
 
ans = 0
for v in C.items():
    if (v%2 != 0):
        ans += 1

print(ans)

Fixed submission:
import collections
n = int (input())
ln = []
ln2 = []
for _ in range(n):
    ln.append( int (input()))

C = collections.Counter(ln)
 
ans = 0
for k, v in C.items():
    if (v%2 != 0):
        ans += 1

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
n = int (input())
ln = []
ln2 = []
for _ in range(n):
    ln.append( int (input()))
for _  in ln:
    if _ in ln2:
        ln2.remove(_)
    else:
        ln2.append(_)
print(len(ln2))

Fixed submission:
import collections
n = int (input())
ln = []
ln2 = []
for _ in range(n):
    ln.append( int (input()))

C = collections.Counter(ln)
 
ans = 0
for k, v in C.items():
    if (v%2 != 0):
        ans += 1

print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
n = int (input())
ln = []
ln2 = []
for _ in range(n):
    ln.append( int (input()))
for _  in ln:
    if _ in ln2:
        ln2.remove(_)
    else:
        ln2.append(_)
print(len(ln2))

Fixed submission:
import collections
n = int (input())
ln = []
ln2 = []
for _ in range(n):
    ln.append( int (input()))

C = collections.Counter(ln)
 
ans = 0
for k, v in C.items():
    if (v%2 != 0):
        ans += 1

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

Fixed submission:
n = int(input())
a = list(map(int, input().split()))
ans = 0
for i in range(n - 1):
    if a[i] == i + 1:
        a[i], a[i + 1] = a[i + 1], a[i]
        ans += 1
        
if a[n - 1] == n:
    ans += 1
print(ans)
Buggy python submission (verdict: Runtime Error):
n = int(input())
a = list(map(int, input().split()))
import collections
c =collections.Counter(a)
ln = [i[0] for i in c.items() if i[1] >= 2]
ln.sort(reverse = True)

if c[ln[0]] >= 4:
    print(ln[0] ** 2)
elif len(ln) <= 1:
    print(0)
else:
    print(ln[0] * ln[1])

Fixed submission:
n = int(input())
a = list(map(int, input().split()))
import collections
c =collections.Counter(a)
ln = [i[0] for i in c.items() if i[1] >= 2]
ln.sort(reverse = True)
if len(ln) < 1:
    print(0)
elif c[ln[0]] >= 4:
    print(ln[0] ** 2)
elif len(ln) <= 1:
    print(0)
else:
    print(ln[0] * ln[1])
Buggy python submission (verdict: Time Limit Exceeded):
import sys
n, m = map(int, input().split())
p = [list(map(int, input().split())) for _ in range(m)]
ln1 = []
ln2 = []
for i in p:
    if i[0] == 1:
        ln1.append(i[1])
for j in p:
    if j[1] == n:
        ln2.append(j[0])

for k in ln1:
    if k in ln2:
        print('POSSIBLE')
        sys.exit()
print('IMPOSSIBLE')

Fixed submission:
import sys
n, m = map(int, input().split())
p = [list(map(int, input().split())) for _ in range(m)]
ln1 = []
ln2 = []
for i in p:
    if i[0] == 1:
        ln1.append(i[1])
for j in p:
    if j[1] == n:
        ln2.append(j[0])

if len(set(ln1) & set(ln2)) == 0:
    print('IMPOSSIBLE')
else:
    print('POSSIBLE')