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): 90382 Accepted Submission(s): 34566
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
0 1 1 0
Sample Output
1.00
1.41
1.41
Author
lcy
#include<stdio.h>
#include<math.h>
int main()
{
double x1, x2, y1, y2;
while(scanf("%lf%lf%lf%lf", &x1, &x2, &y1, &y2) == )
printf("%.2lf\n", sqrt((x1-y1)*(x1-y1)+(x2-y2)*(x2-y2)));
return ;
}