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6053번 - Mountain Watching 다국어

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문제

One day, Bessie was gazing off into the distance at the beautiful Wisconsin mountains when she wondered to herself: which is the widest one?

She decided to take N (1 <= N <= 10,000) height measurements H_i (1 <= H_i <= 1,000,000,000) sequentially along the horizon using her new Acme Long Distance Geoaltimeter.

A mountain is defined to be a consecutive sequence of H_i values which increases (or stays the same) and then decreases (or stays the same), e.g., 2, 3, 3, 5, 4, 4, 1. It is possible for a mountain on the edge of her field of vision only to increase or only to decrease in height, as well.

The width of a mountain is the number of measurements it encompasses. Help Bessie identify the widest mountain.

Here's a simple example of a typical horizon:

 ******* *
 ********* ***
 ********** *****
 *********** ********* *
* ***************** *********** *** *
** ******************* ************* * * ******* *
**********************************************************************
?ddsssuussuussssssddddssddssssuuuuuuuuddddddssududssssuuudduddsssssuds
3211112333677777776543332111112344456765432111212111112343232111111211
aaaaa cccccccccccccccccccc eeeeeee ggggggggg
 bbbbbbbbbbbbbbbbbbbbbbbbbbbb ddddd ffffffffff hhhhhhhhh

The mountains are marked 'a', 'b', etc. Obviously, mountain b is widest with width 28.

Hint: Sometimes it's easiest to find a mountain's width by knowing where its highest parts are.

입력

  • Line 1: A single integer: N
  • Lines 2..N+1: Line i+1 contains a single integer: H_i

출력

  • Line 1: A single line with a single integer that is the width of the widest mountain.

제한

예제 입력 1

7
3
2
3
5
4
1
6

예제 출력 1

5

힌트

The height measurements are 3, 2, 3, 5, 4, 1, 6.

The widest mountain consists of the measurements 2, 3, 5, 4, 1. Other mountains include 3, 2 and 1, 6

출처

Olympiad > USA Computing Olympiad > 2009-2010 Season > USACO US Open 2010 Contest > Bronze 2번

(追記) (追記ここまで)

출처

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