algorithm to find two points

USE TOP DOWN DESIGN
1. Analysis

• looking for a distance of two points on a coordinate input x1, x2, y1, y2.

2. identification

• input   : koordinat A(x1,y1) & B(x2,y2)
• output : distance

3. algorithms

1. declaration 

• x1, x2, y1, y2, a, b : integer  
• distance : float 

2.  description

• Baca x1;
• Baca x2;
• Baca y1;
• Baca y2;
• distance = (sqrt (((x2-x1)*(x2-x1))+((y2-y1)*(y2-y1))));
• end (write range)