class Solution: def twoSum(self , numbers: List[int], target: int) -> List[int]: dict_index, lens = {}, len(numbers) list_num = [] for num in range(0, lens, 1): if target-numbers[num] in dict_index.keys(): list_num.append(dict_index[target-numbers[num]]) list_num.append(num+1) return list_num els...