代码实现:
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.*; public class Main { public static void main(String[] args) throws IOException { SH1(); } static class Persion{ public int id; public int weight; public int height; } public static void SH1() throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String ln; while ((ln = br.readLine()) != null){ List<Persion> personList = new ArrayList<>(); int n = Integer.parseInt(ln); int[] p = new int[n]; for (int i = 0; i < n; i++) { String[] str = br.readLine().split(" "); int id = Integer.parseInt(str[0]); int weight = Integer.parseInt(str[1]); int heigth = Integer.parseInt(str[2]); Persion persion = new Persion(); persion.id = id; persion.weight = weight; persion.height = heigth; personList.add(persion); } personList.sort((a,b)->{ if (a.weight - b.weight == 0){ return b.height - a.height; } return a.weight - b.weight; }); int size = personList.size(); for (int i = 1; i < size; i++) { for (int j = i - 1 ; j >= 0; j--) { if (personList.get(j).height <= personList.get(i).height){ if (p[i] < p[j] + 1){ p[i] = p[j] + 1; } } } } int max = 0; for (int i = 0; i < n; i++) { if (p[i] > max) { max = p[i]; } } System.out.println(max+1); } } }