Toggle Light Bulbs
You are given an array bulbs of integers between 1 and 100.
There are 100 light bulbs numbered from 1 to 100. All of them are switched off initially.
For each element bulbs[i] in the array bulbs:
- If the
bulbs[i]^thlight bulb is currently off, switch it on. - Otherwise, switch it off.
Return the list of integers denoting the light bulbs that are on in the end, sorted in ascending order. If no bulb is on, return an empty list.
Example 1
Input
bulbs = [10,30,20,10]Output
[20,30]After toggling bulbs 10, 30, 20, and 10, only the 20th and 30th light bulbs are on.
Example 2
Input
bulbs = [100,100]Output
[]The 100th light bulb is switched on and then switched off, so no light bulb is on in the end.
Constraints
- 1 <= bulbs.length <= 100
- 1 <= bulbs[i] <= 100