平台（洛谷P1105题题解，Java语言描述）

题目要求

题目链接

分析

把平台定义为一个类，四个属性：ID（输入的顺序）、高度、左边界、右边界。

要根据高度排序，再找到指定的平台，找符合要求的平台即可。

AC代码（Java语言描述）

import java.util.Arrays;
import java.util.Comparator;
import java.util.Objects;
import java.util.Scanner;

public class Main {

    private static class Platform {
        int id;
        int height;
        int left;
        int right;
        Platform(int id, int height, int left, int right) {
            this.id = id;
            this.height = height;
            this.left = left;
            this.right = right;
        }
        @Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (o == null || getClass() != o.getClass()) return false;
            Platform platform = (Platform) o;
            return id == platform.id;
        }
        @Override
        public int hashCode() {
            return Objects.hash(id);
        }
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int num = scanner.nextInt();
        Platform[] platforms = new Platform[num];
        for (int i = 0; i -e.height));
        for (Platform platform : platforms) {
            StringBuilder result = new StringBuilder();
            boolean flag = false;
            int i = 0;
            for (; i