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

array1 = v[::2]
array2 = v[1::2]

dict1 = {}
dict2 = {}
for i in array1:
  if i not in dict1:
    dict1[i] = 1
  else:
    dict1[i] = dict1[i] + 1

for i in array2:
  if i not in dict2:
    dict2[i] = 1
  else:
    dict2[i] = dict2[i] + 1

sort_array1 = []
sort_array2 = []
for k, v in sorted(dict1.items(), key=lambda x: -x[1]):
    sort_array1.append({k:v})
for k, v in sorted(dict2.items(), key=lambda x: -x[1]):
    sort_array2.append({k:v})

one_num1 = 0
one_num2 = 0

for k1,v1 in sort_array1[0].items():
  if len(sort_array1) != 1:
    one_num1 = len(array1) - v1
  for k2,v2 in sort_array2[0].items():
    if len(sort_array2) != 1:
      one_num2 = len(array2) - v2
    if k1 != k2:
      print(one_num1 + one_num2)
      break

    if len(sort_array1) == 1 and len(sort_array2) == 1:
      print(len(array1))
      break
    if len(sort_array1) == 1:
      for k,v in sort_array2[1].items():
        two_num2 = v
      print(1+two_num2)
      break
    if len(sort_array2) == 1:
      for k,v in sort_array1[1].items():
        two_num1 = v
      print(1+two_num1)
      break

    for k,v in sort_array1[1].items():
      two_num1 = len(array1) - v
    for k,v in sort_array2[1].items():
      two_num2 = len(array2) - v
    if two_num1 <= two_num2:
      print (one_num2 + two_num1)
    else:
      print (one_num1 + two_num2)
~

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

array1 = v[::2]
array2 = v[1::2]

dict1 = {}
dict2 = {}
for i in array1:
  if i not in dict1:
    dict1[i] = 1
  else:
    dict1[i] = dict1[i] + 1

for i in array2:
  if i not in dict2:
    dict2[i] = 1
  else:
    dict2[i] = dict2[i] + 1

sort_array1 = []
sort_array2 = []
for k, v in sorted(dict1.items(), key=lambda x: -x[1]):
    sort_array1.append({k:v})
for k, v in sorted(dict2.items(), key=lambda x: -x[1]):
    sort_array2.append({k:v})

one_num1 = 0
one_num2 = 0

for k1,v1 in sort_array1[0].items():
  if len(sort_array1) != 1:
    one_num1 = len(array1) - v1
  for k2,v2 in sort_array2[0].items():
    if len(sort_array2) != 1:
      one_num2 = len(array2) - v2
    if k1 != k2:
      print(one_num1 + one_num2)
      break

    if len(sort_array1) == 1 and len(sort_array2) == 1:
      print(len(array1))
      break
    if len(sort_array1) == 1:
      for k,v in sort_array2[1].items():
        two_num2 = v
      print(1+two_num2)
      break
    if len(sort_array2) == 1:
      for k,v in sort_array1[1].items():
        two_num1 = v
      print(1+two_num1)
      break

    for k,v in sort_array1[1].items():
      two_num1 = len(array1) - v
    for k,v in sort_array2[1].items():
      two_num2 = len(array2) - v
    if two_num1 <= two_num2:
      print (one_num2 + two_num1)
    else:
      print (one_num1 + two_num2)

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

array1 = v[::2]
array2 = v[1::2]

dict1 = {}
dict2 = {}
for i in array1:
  if i not in dict1:
    dict1[i] = 1
  else:
    dict1[i] = dict1[i] + 1

for i in array2:
  if i not in dict2:
    dict2[i] = 1
  else:
    dict2[i] = dict2[i] + 1

sort_array1 = []
sort_array2 = []
for k, v in sorted(dict1.items(), key=lambda x: -x[1]):
    sort_array1.append({k:v})
for k, v in sorted(dict2.items(), key=lambda x: -x[1]):
    sort_array2.append({k:v})

one_num1 = 0
one_num2 = 0

for k1,v1 in sort_array1[0].items():
  if len(sort_array1) != 1:
    one_num1 = len(array1) - v1
  for k2,v2 in sort_array2[0].items():
    if len(sort_array2) != 1:
      one_num2 = len(array2) - v2
    if k1 != k2:
      print(one_num1 + one_num2)
      break

    if len(sort_array1) == 1 and len(sort_array2) == 1:
      print(len(array1))
      break
    if len(sort_array1) == 1:
      for k,v in sort_array2[1].items():
        two_num2 = v
      print(1+two_num2)
      break
    if len(sort_array2) == 1:
      for k,v in sort_array1[1].items():
        two_num1 = v
      print(1+two_num1)
      break

    for k,v in sort_array1[1].items():
      two_num1 = len(array1) - v
    for k,v in sort_array2[1].items():
      two_num2 = len(array2) - v
    if two_num1 <= two_num2:
      print (one_num2 + two_num1)
    else:
      print (one_num1 + two_num2)
~

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

array1 = v[::2]
array2 = v[1::2]

dict1 = {}
dict2 = {}
for i in array1:
  if i not in dict1:
    dict1[i] = 1
  else:
    dict1[i] = dict1[i] + 1

for i in array2:
  if i not in dict2:
    dict2[i] = 1
  else:
    dict2[i] = dict2[i] + 1

sort_array1 = []
sort_array2 = []
for k, v in sorted(dict1.items(), key=lambda x: -x[1]):
    sort_array1.append({k:v})
for k, v in sorted(dict2.items(), key=lambda x: -x[1]):
    sort_array2.append({k:v})

one_num1 = 0
one_num2 = 0

for k1,v1 in sort_array1[0].items():
  if len(sort_array1) != 1:
    one_num1 = len(array1) - v1
  for k2,v2 in sort_array2[0].items():
    if len(sort_array2) != 1:
      one_num2 = len(array2) - v2
    if k1 != k2:
      print(one_num1 + one_num2)
      break

    if len(sort_array1) == 1 and len(sort_array2) == 1:
      print(len(array1))
      break
    if len(sort_array1) == 1:
      for k,v in sort_array2[1].items():
        two_num2 = v
      print(1+two_num2)
      break
    if len(sort_array2) == 1:
      for k,v in sort_array1[1].items():
        two_num1 = v
      print(1+two_num1)
      break

    for k,v in sort_array1[1].items():
      two_num1 = len(array1) - v
    for k,v in sort_array2[1].items():
      two_num2 = len(array2) - v
    if two_num1 <= two_num2:
      print (one_num2 + two_num1)
    else:
      print (one_num1 + two_num2)

Buggy python submission (verdict: Runtime Error):
n = int(input())
v = list(map(int, input()))

array1 = v[::2]
array2 = v[1::2]

dict1 = {}
dict2 = {}
for i in array1:
  if i not in dict1:
    dict1[i] = 1
  else:
    dict1[i] = dict1[i] + 1

for i in array2:
  if i not in dict2:
    dict2[i] = 1
  else:
    dict2[i] = dict2[i] + 1

sort_array1 = []
sort_array2 = []
for k, v in sorted(dict1.items(), key=lambda x: -x[1]):
    sort_array1.append({k:v})
for k, v in sorted(dict2.items(), key=lambda x: -x[1]):
    sort_array2.append({k:v})

one_num1 = 0
one_num2 = 0

for k1,v1 in sort_array1[0].items():
  if len(sort_array1) != 1:
    one_num1 = len(array1) - v1
  for k2,v2 in sort_array2[0].items():
    if len(sort_array2) != 1:
      one_num2 = len(array2) - v2
    if k1 != k2:
      print(one_num1 + one_num2)
      break

    if len(sort_array1) == 1 and len(sort_array2) == 1:
      print(1)
      break
    if len(sort_array1) == 1:
      for k,v in sort_array2[1].items():
        two_num2 = v
      print(1+two_num2)
      break
    if len(sort_array2) == 1:
      for k,v in sort_array1[1].items():
        two_num1 = v
      print(1+two_num1)
      break

    for k,v in sort_array1[1].items():
      two_num1 = v
    for k,v in sort_array2[1].items():
      two_num2 = v
    if two_num1 <= two_num2:
      print (one_num1 + two_num2)
    else:
      print (one_num2 + two_num1)

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

array1 = v[::2]
array2 = v[1::2]

dict1 = {}
dict2 = {}
for i in array1:
  if i not in dict1:
    dict1[i] = 1
  else:
    dict1[i] = dict1[i] + 1

for i in array2:
  if i not in dict2:
    dict2[i] = 1
  else:
    dict2[i] = dict2[i] + 1

sort_array1 = []
sort_array2 = []
for k, v in sorted(dict1.items(), key=lambda x: -x[1]):
    sort_array1.append({k:v})
for k, v in sorted(dict2.items(), key=lambda x: -x[1]):
    sort_array2.append({k:v})

one_num1 = 0
one_num2 = 0

for k1,v1 in sort_array1[0].items():
  if len(sort_array1) != 1:
    one_num1 = len(array1) - v1
  for k2,v2 in sort_array2[0].items():
    if len(sort_array2) != 1:
      one_num2 = len(array2) - v2
    if k1 != k2:
      print(one_num1 + one_num2)
      break

    if len(sort_array1) == 1 and len(sort_array2) == 1:
      print(len(array1))
      break
    if len(sort_array1) == 1:
      for k,v in sort_array2[1].items():
        two_num2 = v
      print(1+two_num2)
      break
    if len(sort_array2) == 1:
      for k,v in sort_array1[1].items():
        two_num1 = v
      print(1+two_num1)
      break

    for k,v in sort_array1[1].items():
      two_num1 = len(array1) - v
    for k,v in sort_array2[1].items():
      two_num2 = len(array2) - v
    if two_num1 <= two_num2:
      print (one_num2 + two_num1)
    else:
      print (one_num1 + two_num2)