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majority-element-ii.py
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majority-element-ii.py
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from typing import List
class Solution:
def majorityElement(self, nums: List[int]) -> List[int]:
candidate1, candidate2 = max(nums) + 1, max(nums) + 1
count1, count2 = 0, 0
for num in nums:
if candidate1 == num:
count1 += 1
elif candidate2 == num:
count2 += 1
elif count1 == 0:
candidate1 = num
count1 = 1
elif count2 == 0:
candidate2 = num
count2 = 1
else:
count1 -= 1
count2 -= 1
result: List[int] = []
if nums.count(candidate1) > len(nums) // 3:
result.append(candidate1)
if nums.count(candidate2) > len(nums) // 3:
result.append(candidate2)
return result
def majorityElementBruteforce(self, nums: List[int]) -> List[int]:
nums.sort()
result: List[int] = []
num = None
count = 0
for pos in range(len(nums)):
if num == nums[pos]:
count += 1
else:
count = 1
num = nums[pos]
if count > len(nums) // 3 and (not result or result[-1] != num) and num:
result.append(num)
return result