计算两点间的距离
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 51606 Accepted Submission(s): 19567
Problem Description
输入两点坐标(X1,Y1),(X2,Y2),计算并输出两点间的距离。
Input
输入数据有多组,每组占一行,由4个实数组成,分别表示x1,y1,x2,y2,数据之间用空格隔开。
Output
对于每组输入数据,输出一行,结果保留两位小数。
Sample Input
0 0 0 1
0 1 1 0
Sample Output
1.00
1.41
Author
lcy
Source
Recommend
JGShining
代码如下:
import java.util.Scanner; public class Main{ public static void main(String[] args){ Scanner scan = new Scanner(System.in); double x1, x2, y1, y2, a, b, ans; while (scan.hasNextDouble()){ x1 = scan.nextDouble(); y1 = scan.nextDouble(); x2 = scan.nextDouble(); y2 = scan.nextDouble(); a = x1 - x2; b = y1 - y2; ans = Dis(a, b); System.out.printf("%.2f",ans); System.out.println(); } } //求距离的函数 public static double Dis(double x, double y){ double D; D = Math.sqrt(x * x + y * y); return D; } }