열정가득한 개발자의 이야기/Javascript Algorithm
1207. Unique Number of Occurrences (Javascript)
가문비나무 위의 독수리
2024. 9. 29. 14:16
Hi... I have another array problem.
The level is easy, but it is hard for me.
However, I won't give up; I'll do my best.
Anyway, to summarize this problem, I just need to check the unique count.
So, I used the Map object and Set.
Here is my answer.
First, I convert the array to a Map, where the Map is [key, value], so I add the count as the value.
Then, I initialize the Set because a Set can check for duplicated values.
Since that characteristic, I can check for duplicate factors.