Time Limit: 1000 ms Memory Limit: 65536 KiB
A data stream is a real-time, continuous, ordered sequence of items. Some examples include
sensor data, Internet traffic, financial tickers, on-line auctions, and transaction logs such as Web
usage logs and telephone call records. Likewise, queries over streams run continuously over a
period of time and incrementally return new results as new data arrives. For example, a
temperature detection system of a factory warehouse may run queries like the following.
Query-1: “Every five minutes, retrieve the maximum temperature over the past five minutes.”
Query-2: “Return the average temperature measured on each floor over the past 10 minutes.”
We have developed a Data Stream Management System called Argus, which processes the queries
over the data streams. Users can register queries to the Argus. Argus will keep the queries running
over the changing data and return the results to the corresponding user with the desired frequency.
For the Argus, we use the following instruction to register a query:
Register Q_num Period
Q_num (0 < Q_num <= 3000) is query ID-number, and Period (0 < Period <= 3000) is the interval
between two consecutive returns of the result. After Period seconds of register, the result will be
returned for the first time, and after that, the result will be returned every Period seconds.
Here we have several different queries registered in Argus at once. It is confirmed that all the
queries have different Q_num. Your task is to tell the first K queries to return the results. If two or
more queries are to return the results at the same time, they will return the results one by one in
the ascending order of Q_num.
The first part of the input are the register instructions to Argus, one instruction per line. You can
assume the number of the instructions will not exceed 1000, and all these instructions are executed
at the same time. This part is ended with a line of “#”.
The second part is your task. This part contains only one line, which is one positive integer K (<=
You should output the Q_num of the first K queries to return the results, one number per line.
Register 2004 200 Register 2005 300 # 5
2004 2005 2004 2004 2005