Contains Duplicate
Created: September 10, 2018 by [lek-tin]
Last updated: September 10, 2018
Given an array of integers, find if the array contains any duplicates.
Your function should return true if any value appears at least twice in the array, and it should return false if every element is distinct.
Example 1:
Input: [1,2,3,1]
Output: true
Example 2:
Input: [1,2,3,4]
Output: false
Example 3:
Input: [1,1,1,3,3,4,3,2,4,2]
Output: true
Solution
class Solution:
def containsDuplicate(self, nums):
"""
:type nums: List[int]
:rtype: bool
"""
sortedNums = sorted(nums)
for i in range(1, len(nums)):
if sortedNums[i] == sortedNums[i-1]:
return True
return False