ADAQUEUE - Ada and Queue
Ada the Ladybug has many things to do. She puts them into her queue. Anyway she is very indecisive, so sometime she uses the top, sometime the back and sometime she decides to reverses it.
Input
The first line consists of 1 ≤ Q ≤ 106, number of queries. Each of them contains one of following commands
back - Print number from back and then erase it
front - Print number from front and then erase it
reverse - Reverses all elements in queue
push_back N - Add element N to back
toFront N - Put element N to front
All numbers will be 0 ≤ N ≤ 100
Output
For each back/front query print appropriate number.
If you would get this type of query and the queue would be empty, print "No job for Ada?" instead.
Example Input
15 toFront 93 front back reverse back reverse toFront 80 push_back 53 push_back 50 front front reverse push_back 66 reverse front
Example Output
93 No job for Ada? No job for Ada? 80 53 66
hide comments
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yzs:
2020-10-02 15:23:20
@tarun_28 Rightly said! |
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tarun_28:
2020-06-01 13:39:52
Simplest method: Deque + flag variable |
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leductoan:
2020-03-04 08:28:17
con gà Bình mất 2 đấm |
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binh27112004:
2020-03-04 08:17:52
Toàn cũng thế |
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leductoan:
2020-03-04 08:16:42
Bình là một con gà |
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luunguyen123:
2020-01-21 02:26:41
Using dequeue for this problem. Easy AC !! |
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amin_amin120:
2019-09-14 23:10:16
drives me crazy , but solved eventually , no need for reversing all the queue , just using a flag to determine if that is traversed or not , good luck Last edit: 2019-09-14 23:11:15 |
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eloi:
2019-04-24 10:12:25
Reverse input doesn't only reverse the elements, it should reverse all operations, be careful because that costed me a few WAs
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anurag_tangri:
2019-01-04 12:09:30
use deque with flag variable ! |
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dorman8288:
2019-01-01 11:51:22
IF you are getting wrong with linked list try using the deque |
| Added by: | Morass |
| Date: | 2016-09-06 |
| Time limit: | 3.5s |
| Source limit: | 50000B |
| Memory limit: | 1536MB |
| Cluster: | Cube (Intel G860) |
| Languages: | All except: ASM64 GOSU |
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