题解 | #牛牛的线段#
牛牛的线段
http://www.nowcoder.com/practice/f72c56ed71664af082c921bf79861c85
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int x1 = scanner.nextInt();
int y1 = scanner.nextInt();
int x2 = scanner.nextInt();
int y2 = scanner.nextInt();
System.out.print((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2));
}
}
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