两数之和

Posted 2021-01-23 xiaojianliu

题目

题目

解答

python

class Solution:
    def twoSum(self, nums, target):
        """
        :type nums: List[int]
        :type target: int
        :rtype: List[int]
        """
        hash_map = dict()
        
        for i,x in enumerate(nums):
            
            if target - x in hash_map:
                return i,hash_map[target-x]
            
            hash_map[x] = i