题目101 两点距离
2016-07-29 12:45
274 查看
已AC代码:
#include<cstdio>
#include<cmath>
using namespace std;
int main()
{
int t;
scanf("%d", &t);
while(t--)
{
double x1, y1, x2, y2;
double s;
scanf("%lf%lf%lf%lf", &x1, &y1, &x2, &y2);
s = sqrt((x1-x2)*(x1-x2) +(y1-y2)*(y1-y2));
printf("%.2lf\n", s);
}
return 0;
}