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2 years ago
#include <bits/stdc++.h>
using namespace std;
// https://blog.csdn.net/u011815404/article/details/80542410
#define INF 0x3f3f3f3f
int a[101] = {0};
int f[101] = {0};
int main() {
//输入+输出重定向
freopen("../1271.txt", "r", stdin);
//动态规则
int n;
cin >> n;
for (int i = 1; i <= n; ++i) {
cin >> a[i];
}
//核心算法
//原理篇: https://blog.csdn.net/memory_cood/article/details/87936191
// 浅谈最长不下降子序列与最长上升子序列
// https://www.cnblogs.com/yuelian/p/8745807.html
for (int i = 1; i <= n; i++) { //遍历每一个元素
f[i] = 1; //以这个元素结尾的dp数组默认值是1即表示只有它自己一个
for (int j = 1; j < i; j++) { //从比它小的每一个数都过来计算一次
//找到比当前元素小的,并且以那个元素结尾的最长子序列长度+1比现在的大就是猴子选大王找最长的一条
if (a[j] < a[i] && f[j] + 1 > f[i]) {
f[i] = f[j] + 1; //修改猴王
}
}
}
//初始值
int res = 0;
for (int i = 1; i <= n; i++) {
cout << f[i] << " ";
res = max(res, f[i]);
}
cout << endl;
cout << res << endl;
//关闭文件
fclose(stdin);
return 0;
}