Skip to content

217. Contains Duplicate #23

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

Closed
wants to merge 3 commits into from
Closed

217. Contains Duplicate #23

Changes from 1 commit
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
db8e059
217. Contains Duplicate
IshanAryendu Apr 4, 2022
475fb65
49. Group Anagrams
IshanAryendu Apr 4, 2022
7d67040
49 Group Anagrams
IshanAryendu Apr 4, 2022
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
13 changes: 13 additions & 0 deletions java/217_Contains_Duplicate.java
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,13 @@
class Solution {
public boolean containsDuplicate(int[] nums) {
if(nums.length == 0) return false;
Set<Integer> set = new HashSet<>();
for(int num: nums){
if(set.contains(num)){
return true;
}
set.add(num);
}
return false;
}
}