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2 years ago
#include <bits/stdc++.h>
using namespace std;
const int N = 1010;
int a[N];
int n;
//最大值
int Max;
/**
3
130 200 55
2
*/
/**
*
* @param step
* @param last
* @param cnt
*/
void dfs(int u, int last, int cnt) {
//如果越界
if (u == n + 1) {
//更新最大长度
Max = max(Max, cnt);
return;
}
//如果可以选择当前篮筐,并且选择了当前篮筐
if (a[u] < last)
dfs(u + 1, a[u], cnt + 1);
//放弃当前篮筐
dfs(u + 1, last, cnt);
}
int main() {
//输入
cin >> n;
for (int i = 1; i <= n; i++) cin >> a[i];
//深度优先
dfs(1, INT_MAX, 0);
//输出最大值
cout << Max << endl;
return 0;
}