Uri - Beecrowd | 1015 | Distance Between Two Points

 | 1015

Distance Between Two Points

Adapted by Neilor Tonin, URI Brazil

Read the four values corresponding to the x and y axes of two points in the plane, p1 (x1, y1) and p2 (x2, y2) and calculate the distance between them, showing four decimal places after the comma, according to the formula:

Distance = 

Input

The input file contains two lines of data. The first one contains two double values: x1 y1 and the second one also contains two double values with one digit after the decimal point: x2 y2.

Output

Calculate and print the distance value using the provided formula, with 4 digits after the decimal point.

Input Sample	Output Sample
1.0 7.0 5.0 9.0	4.4721

-2.5 0.4 12.1 7.3

16.1484

2.5 -0.4 -12.2 7.0

16.4575

N.B.: It's better if you solve this by your own. Thank you!

  URI - BEECROWD Online Judge 1015 Solve  in C :                                          

//Solved by Intesar
#include <stdio.h>
int main() {
    double x1,y1,x2,y2;
    scanf("%lf%lf%lf%lf",&x1,&y1,&x2,&y2);
    printf("%.4lf\n",sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1)));
    return 0;
}