Skip to content

[sonjh1217] WEEK 02 solutions #1762

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.

Sign up for GitHub

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

Merged
merged 2 commits into from
Aug 3, 2025
Merged

[sonjh1217] WEEK 02 solutions #1762

Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
d859932
valid anagram
jihyun-fastforward Jul 28, 2025
cef1274
product of array except self
sonjh1217 Aug 1, 2025
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
24 changes: 24 additions & 0 deletions product-of-array-except-self/sonjh1217.swift
View file
Open in desktop
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

배열을 재활용하여 메모리를 효율적으로 사용하고 있는 점이 좋은 것 같아요. 좋은 코드 잘 읽었습니다.

Original file line number Diff line number Diff line change
@@ -0,0 +1,24 @@
class Solution {
func productExceptSelf(_ nums: [Int]) -> [Int] {
var answer = [Int]()
var product:Int = 1
for i in (0..<nums.count) {
if i > 0 {
product *= nums[i-1]
}
answer.append(product)
}

product = 1
for i in (1..<nums.count) {
product *= nums[nums.count-i]
answer[nums.count-1-i] *= product
}

return answer

//시간 복잡도 O(n)
//공간 복잡도 O(n)
}
}