[algorithm] Two Sum

class Solution:
    def twoSum(self, nums: List[int], target: int) -> List[int]:
        for i in range(len(nums)) :
            for j in range(len(nums)) :
                if i==j :
                    pass
                elif nums[i]+nums[j] == target :
                    return [i,j]

개선 해보기 :