hash

#
# 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
#
# 
# @param numbers int整型一维数组 
# @param target int整型 
# @return int整型一维数组
#
class Solution:
    def twoSum(self , numbers: List[int], target: int) -> List[int]:
        # write code here
        res = []
        hash = dict()
        for i in range(len(numbers)):
            temp = target -numbers[i]
            if temp not in hash:
                hash[numbers[i]]=i
                #print(hash)
            else:
                res.append(hash[temp]+1)
                res.append(i+1)
        return res

python 用dict做为hash函数