Visual C++  Distance between the two points
Here is the Visual C++ program for the Distance between the two points.
It uses the following formula give points are (x1,y1) and (x2, y2)
SQRT( (x2x1) * (x2x1) + (y2y1) * (y2y1) )
Source Code
#include <iostream>
#include <math.h>
void main()
{
float distance;
int x1, y1, x2, y2;
int dx, dy;
std::cout << "Program for distance between the two points\n";
std::cout << "Enter X1: ";
std::cin >> x1;
std::cout << "Enter Y1: ";
std::cin >> y1;
std::cout << "Enter X2: ";
std::cin >> x2;
std::cout << "Enter Y2: ";
std::cin >> y2;
dx = x2  x1;
dy = y2  y1;
distance = sqrt((double) dx*dx + dy*dy);
std::cout << "Distance between (" << x1 << ", " << y1 << " and (" << x2 << ", " << y2 << ") = ";
std::cout << "SQRT(" << dx*dx + dy*dy << ") = " << distance;
}
Output
Program for distance between the two points
Enter X1: 10
Enter Y1: 10
Enter X2: 30
Enter Y2: 30
Distance between (10, 10) and (30, 30) = SQRT(800) = 28.2843
