137. Single Number II

leetcode.com/problems/single-number-ii/

Single Number II - LeetCode

class Solution(object):
    def singleNumber(self, nums):
        dic = {k: 0 for k in nums}
        
        for k in nums:
            dic[k] += 1
        print(dic)

        for k, v in dic.items():
            if v == 1:
                return k