AT_arc218_b [ARC218B] All Minus
Description
There are $ N $ non-negative integers $ A_1,A_2,\dots,A_N $ written on a blackboard.
Alice and Bob play a game. Starting with Alice, they alternately perform the following operation, and the player who reduces the number of integers written on the blackboard to $ 0 $ wins.
- Let $ m $ be the minimum non-negative integer currently written on the blackboard.
- If $ m > 0 $ , choose a positive integer $ x $ between $ 1 $ and $ m $ , inclusive. Replace every integer written on the blackboard with its current value minus $ x $ .
- If $ m = 0 $ , erase one or more of the $ 0 $ s written on the blackboard.
Determine who wins when both players play optimally to win.
$ T $ test cases are given; solve each of them.
Input Format
The input is given from Standard Input in the following format:
> $ T $ $ \mathrm{case}_1 $ $ \mathrm{case}_2 $ $ \vdots $ $ \mathrm{case}_T $
Each test case is given in the following format:
> $ N $ $ A_1 $ $ A_2 $ $ \dots $ $ A_N $
Output Format
Output $ T $ lines. The $ i $ -th line should contain `Alice` if Alice wins in $ \mathrm{case}_i $ , or `Bob` if Bob wins.
Explanation/Hint
### Sample Explanation 1
For the first test case, one possible game progression is as follows:
- Initially, $ 2 $ is written on the blackboard.
- Alice chooses $ x = 1 $ . Now $ 1 $ is written on the blackboard.
- Bob chooses $ x = 1 $ . Now $ 0 $ is written on the blackboard.
- Alice chooses and erases one $ 0 $ . Now nothing is written on the blackboard.
When both players play optimally to win, Alice wins.
For the second test case, one possible game progression is as follows:
- Initially, $ 1,1,1 $ are written on the blackboard.
- Alice chooses $ x = 1 $ . Now $ 0,0,0 $ are written on the blackboard.
- Bob chooses and erases one $ 0 $ . Now $ 0,0 $ are written on the blackboard.
- Alice chooses and erases one $ 0 $ . Now $ 0 $ is written on the blackboard.
- Bob chooses and erases one $ 0 $ . Now nothing is written on the blackboard.
When both players play optimally to win, Bob wins.
### Constraints
- $ 1 \le T \le 2 \times 10^5 $
- $ 1 \le N \le 2 \times 10^5 $
- $ 0 \le A_i \le 10^9 $
- The sum of $ N $ over all test cases is at most $ 2 \times 10^5 $ .
- All input values are integers.