백준 6887 자바 - Squares

// Squares
package Bronze_IV_4;

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

public class Ex6887 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int n = Integer.parseInt(br.readLine());

        System.out.printf("The largest square has side length %d.", (int) Math.sqrt(n));
    }
}