Two point distance Hangzhou Electric 2001

Source: Internet
Author: User

问题描述 输入两点坐标(X1,Y1),(X2,Y2),计算并输出两点间的距离。输入 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。输出 对于每组输入数据,输出一行,结果保留两位小数。样例输入 0 0 0 1 0 1 1 0 样例输出 1.00 1.41 输入两个坐标,计算两点间距离,无限循环;#include<stdio.h>#include<math.h>int main(){ doublea,b,c,d,m; while(scanf("%lf%lf%lf%lf",&a,&b,&c,&d)!=EOF){m=(a-c)*(a-c)+(b-d)*(b-d);printf("%.2f\n",sqrt(m));}return0; }
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Note:

1 while(scanf("%lf%lf%lf%lf",&a,&b,&c,&d)!=EOF):实现无限循环!

Two point distance Hangzhou Electric 2001

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