class Solution(object):
def twoSum(self, nums, target):
"""
:type nums: List[int]
:type target: int
:rtype: List[int]
"""
if len(nums)<=1:
return None
buff={}
for i in range(len(nums)):
if nums[i] in buff:
return [i,buff[nums[i]]]
else:
buff[target-nums[i]]=i
class Solution(object):
def twoSum(self, nums, target):
"""
:type nums: List[int]
:type target: int
:rtype: List[int]
"""
num_dict = {}
for i, num in enumerate(nums):
complement = target - num
if complement in num_dict:
return [num_dict[complement], i]
num_dict[num] = i
class Solution:
# @return a tuple, (index1, index2)
# 8:42
def twoSum(self, nums, target):
d={}
for i,num in enumerate(nums):
if target-num in d:
return d[target-num], i
d[num]=i
