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L1-076 降价提醒机器人

小 T 想买一个玩具很久了,但价格有些高,他打算等便宜些再买。但天天盯着购物网站很麻烦,请你帮小 T 写一个降价提醒机器人,当玩具的当前价格比他设定的价格便宜时发出提醒。

输入格式:

输入第一行是两个正整数 NM (1≤N≤100,0≤M≤1000),表示有 N 条价格记录,小 T 设置的价格为 M

接下来 N 行,每行有一个实数 P**i(−1000.0<P**i<1000.0),表示一条价格记录。

输出格式:

对每一条比设定价格 M 便宜的价格记录 P,在一行中输出 On Sale! P,其中 P 输出到小数点后 1 位。

输入样例:

tex
4 99
98.0
97.0
100.2
98.9
4 99
98.0
97.0
100.2
98.9

输出样例:

tex
On Sale! 98.0
On Sale! 97.0
On Sale! 98.9
On Sale! 98.0
On Sale! 97.0
On Sale! 98.9

Solution:

java
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        String[] input = in.readLine().split(" ");
        int n = Integer.parseInt(input[0]);
        int m = Integer.parseInt(input[1]);
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < n; i++) {
            double price = Double.parseDouble(in.readLine());
            if (price < m) sb.append(String.format("On Sale! %.1f", price)).append("\n");
        }
        System.out.print(sb);
    }
}
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        String[] input = in.readLine().split(" ");
        int n = Integer.parseInt(input[0]);
        int m = Integer.parseInt(input[1]);
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < n; i++) {
            double price = Double.parseDouble(in.readLine());
            if (price < m) sb.append(String.format("On Sale! %.1f", price)).append("\n");
        }
        System.out.print(sb);
    }
}

Released under the MIT License.