CEN303 2013-15 Questions |
Start: Dec.15.2013 at 02:00:00 PM
Finish: Dec.15.2013 at 07:00:00 PM
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Time limit 2000/4000/4000/4000 ms. Memory limit 65000/65000/65000/65000 Kb.
Question by Ibrahim Mesecan.
The first m trains to leave
You have started working in Tirana central train
station. The chief wants a program for adjusting railroad switches.
In order to avoid accidents, they need to adjust railroad switches
properly. You have the arrival and stay times for the trains.
Question:
Write a program that is going to get information for n
trains and it will show m trains which leave the earliest.
Input specification
In the first line, you will be given two integers: The
number of trains(n) and the number of trains to show (m),
where 0 ≤ m ≤ n ≤ 40,000.
Then, in the following n lines, you will be given 4 integers
- arrival time of the train (h, m, s)
- The time in minutes (k) that the train stays in the
station .
where 0 ≤ h ≤ 23, 0 ≤ m and s ≤ 59,
and 0 ≤ k ≤ 10,000.
Note: Pay attention that a train might
leave some days after.
Output specification:
Show ids of m trains which leave the earliest.
If there are two trains to leave at the same
time, show the train with smaller id first.
Sample Input I
3 2
14 30 26 85
14 20 06 115
14 35 24 65
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Sample Output I
3 1
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Explanation:
- The first train stays 85 minutes and leaves at:
15:55:26
- The second train leaves at: 16:15:06
- The third train leaves at: 15:40:24
Then the sorted list of trains will 3, 1 and 2.
Для отправки решений необходимо выполнить вход.
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