URI Online Judge | 1015 Distance Between Two Points (Solution)

Problem Link:
https://www.urionlinejudge.com.br/judge/en/problems/view/1015

URI Online Judge | 1015

Distance Between Two Points

Adapted by Neilor Tonin, URI  Brazil

Timelimit: 1

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, rounded to four decimal places, according to the formula:

Distance = 

Input

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

Output

Calculate and print the distance, using the above phormula, with 4 digits after the decimal point.

Sample Input	Sample Output
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

Solution:

#include<stdio.h>

#include<math.h>

  

int main()

{

    float x1,y1,x2,y2,p1,p2,res;

    scanf("%f %f %f %f", &x1, &y1, &x2, &y2);

    p1=x2-x1;

    p2=y2-y1;

    res=sqrt((p1*p1)+(p2*p2));

    printf("%.4f\n",res);

    return 0;

}