Skip to content

Create intersection of Two Arrays.md #3

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: main
Choose a base branch
from
Open
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
23 changes: 23 additions & 0 deletions intersection of Two Arrays/intersection of Two Arrays.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,23 @@
# Step1
自力で解く
```python
class Solution:
def intersection(self, nums1: List[int], nums2: List[int]) -> List[int]:
intersection_nums =[]
for num1 in nums1:
if num1 not in intersection_nums and num1 in nums2:
intersection_nums.append(num1)
return intersection_nums
```
ひとまずfor文で回した.辞書を使えばもっと計算効率上がるかも

# Step2
調べてみる.setという組み込み関数があるらしい
https://qiita.com/KueharX/items/a8cc7831fc430e9340ca
setはuniqueな値を辞書型で返すので,list()で括る
```python
class Solution:
def intersection(self, nums1: List[int], nums2: List[int]) -> List[int]:
intersected_nums = list(set(nums1) & set(nums2))
return intersected_nums
```