A - Kefa and First Steps

Problem description

Kefa decided to make some money doing business on the Internet for exactly n days. He knows that on the i-th day (1?≤?i?≤?n) he makes a_i money. Kefa loves progress, that‘s why he wants to know the length of the maximum non-decreasing subsegment in sequence a_i. Let us remind you that the subsegment of the sequence is its continuous fragment. A subsegment of numbers is called non-decreasing if all numbers in it follow in the non-decreasing order.

Help Kefa cope with this task!

Input

The first line contains integer n (1?≤?n?≤?10⁵).

The second line contains n integers a₁,??a₂,??...,??a_n (1?≤?a_i?≤?10⁹).

Output

Print a single integer — the length of the maximum non-decreasing subsegment of sequence a.

Examples

6
2 2 1 3 4 1

3

3
2 2 9

3

Note

In the first test the maximum non-decreasing subsegment is the numbers from the third to the fifth one.

In the second test the maximum non-decreasing subsegment is the numbers from the first to the third one.

解题思路：求最大非递减序列的长度，注意maxlen初始值为1，水过！

AC代码：

 1 #include<bits/stdc++.h>
 2 using namespace std;
 3 int n,len=1,maxlen=1,a[100005];
 4 int main(){
 5     cin>>n;
 6     for(int i=0;i<n;++i)cin>>a[i];
 7     for(int i=1;i<n;++i){
 8         if(a[i]>=a[i-1])len++;
 9         else len=1;
10         maxlen=max(maxlen,len);
11     }
12     cout<<maxlen<<endl;
13     return 0;
14 }

A - Kefa and First Steps

原文：https://www.cnblogs.com/acgoto/p/9146499.html