1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
#include <bits/stdc++.h>

using namespace std;
int k,n,i,j,u;
int z;
vector<int> a;
vector<int>s;
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> n;
	for(i=0;i<n;i++) {
		cin >> j; 
		a.push_back(j);
	}
	z=0;
	for(i=2*n-1;i>=0;i--) {
		while(!s.empty() and a[i%n]>=s.back()) s.pop_back();
			s.push_back(a[i%n]);
			u=s.size();
			z=max(z,u);
		
	}
	cout << z <<'\n';
}