leetcode442 Find All Duplicates in an Array
2017-05-17 15:05
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解题思路：将值转化为下表，用值记录个数
代码来自：https://leetcode.com/problems/find-all-duplicates-in-an-array/#/description
https://leetcode.com/problems/find-all-duplicates-in-an-array/#/solutions
class Solution(object):
def findDuplicates(self, nums):
"""
:type nums: List[int]
:rtype: List[int]
"""
freq = [0]*(len(nums)+1)
for i in nums:
freq[i] += 1
return [i for i,v in enumerate(freq) if v == 2]
代码来自：https://leetcode.com/problems/find-all-duplicates-in-an-array/#/description
https://leetcode.com/problems/find-all-duplicates-in-an-array/#/solutions
class Solution(object):
def findDuplicates(self, nums):
"""
:type nums: List[int]
:rtype: List[int]
"""
freq = [0]*(len(nums)+1)
for i in nums:
freq[i] += 1
return [i for i,v in enumerate(freq) if v == 2]
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