题解 | #牛牛的圆#
牛牛的圆
http://www.nowcoder.com/practice/75a202e826d048a39824ec694b5ce7e3
import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner in = new Scanner(System.in);
float input = in.nextFloat();
System.out.printf("%.2f%n",(float)3.14*input*input);
}
}
查看11道真题和解析