Question

Write a complete C program that prompts the user for the coordinates of two 3- D points ( x1 , y1 , z1 ) and ( x2 , y2 , z2 ) and displays the distance between them computed using the following formula:

distance= square root of (x₁-x₂)²+(y₁-y₂)²+(z₁-z₂)²

Answer 1

#include <stdio.h>
#include <math.h>
int main()
{
int x1,x2,y1,y2,z1,z2;
double distance;
printf("Enter the first 3-D point: ");
scanf("%d %d %d", &x1, &y1, &z1);
printf("Enter the second 3-D point: ");
scanf("%d %d %d", &x2, &y2, &z2);
distance = sqrt((x2-x1) * (x2-x1) + (y2-y1) *(y2-y1) +(z2-z1) * (z2-z1));
printf("Distance is %ld\n", distance);

return 0;
}

Output:

sh-4.2$   g++ -o main *.cpp                                                                                                                                                                                                                                            

sh-4.2$ main                                                                                                                                                                                                                                                           

Enter the first 3-D point: 1 2 3                                                                                                                                                                                                                                       

Enter the second 3-D point: 4 5 6                                                                                                                                                                                                                                      

Distance is 3