计算两点间的距离

计算两点间的距离

#include<stdio.h> #include<math.h> int main() { double x1,x2,y1,y2,d; while(scanf("%lf %lf %lf %lf",&x1,&y1,&x2,&y2)!=EOF) { d=sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)); printf("%.2lf\n",d); } return 0; }