[java 백준] 브론즈 3/ 2783번 삼각 김밥

https://www.acmicpc.net/problem/2783

2783번: 삼각 김밥

import java.util.Arrays;
import java.util.Scanner;
 
public class Main {
 
    public static void main(String[] args) {
 
        Scanner sc = new Scanner(System.in);
        int seven_x = sc.nextInt();
        int seven_y = sc.nextInt();
        double seven = (seven_x / (double) seven_y) * 1000;
 
        int num = sc.nextInt();
        double[] arr = new double[num + 1];
        arr[0] = seven;
 
        for (int i = 1; i < num + 1; i++) {
            int x = sc.nextInt();
            int y = sc.nextInt();
            double price = (x / (double) y) * 1000;
 
            arr[i] = price;
        }
 
        Arrays.sort(arr);
 
        System.out.println(String.format("%.2f", arr[0]));
    }
 
}