examples of C part 59 distance between two points

Program :

#include<stdio.h>
#include<math.h>
main()
{
 int x1,x2,y1,y2;
 double distance;
 printf("Enter x1\n");
 scanf("%d",&x1);
 printf("Enter y1\n");
 scanf("%d",&y1);
 printf("Enter x2\n");
 scanf("%d",&x2);
 printf("Enter y2\n");
 scanf("%d",&y2);
 distance=sqrt((pow((x2-x1),2))+(pow((y2-y1),2)));
 printf("Distance=%lf\n",distance);
}

Output:
Enter x1
-2
Enter y1
-3
Enter x2
-4
Enter y2
4
Distance=7.280110Explanation:
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