Nội dung Bài tập
Mã:
MilkingCows
Tên:
Milking Cows
Dạng thi:
oi
Thang điểm:
10 điểm
Giới hạn thời gian:
1 giây
Giới hạn bộ nhớ:
128 MB
Nguồn bài tập:
USACO TRAINING
Được tạo bởi:
duynm619
Milking Cows

Three farmers rise at 5 am each morning and head for the barn to milk three cows. The first farmer begins milking his cow at time 300 (measured in seconds after 5 am) and ends at time 1000. The second farmer begins at time 700 and ends at time 1200. The third farmer begins at time 1500 and ends at time 2100. The longest continuous time during which at least one farmer was milking a cow was 900 seconds (from 300 to 1200). The longest time no milking was done, between the beginning and the ending of all milking, was 300 seconds (1500 minus 1200).

Your job is write a program that will examine a list of beginning and ending times for N (0 < N <= 105) farmers milking N cows and compute (in seconds):

  • The longest time interval at least one cow was milked.
  • The longest time interval (after milking starts) during which no cows were being milked.

INPUT FORMAT

     Line 1 : The single integer N.
     Line 2...N+1 : Two non-negative integers less than 1010, respectively the starting and ending time in seconds.

OUTPUT FORMAT

A single line with two integers that represent the longest continuous time of milking and the longest idle time.

Example:

 SAMPLE INPUT SAMPLE OUTPUT
3
300 1000
700 1200
1500 2100
900 300

   + Exam is not avalable in the testcase :D


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