在线求助问题。初学C++ 有一道题不会写。想求助学习。

Question

Write a program that calculates the distance of 2 points from the origin, as well as from each other. The distance between 2 points can be calculated using the formula:
d=√(〖(x_2-x_1)〗^2+〖(y_2-y_1)〗^2+〖(z_2-z_1)〗^2 )

1. Read the coordinates of 2 3D points from the user. A point is represented by its x, y, and z coordinates.
2. Calculate and print the distance of the first point from the origin, (0, 0, 0).
3. Calculate and print the distance of the second point from the origin.
4. Calculate and print the distance between the two points.

第一次用，试试行不行，行的话以后会标注悬赏。

Answer 1

代码如下，无需悬赏，请问题解决后及时采纳

#include <iostream>
#include <math>
using namespace std;

double dist(double x1,double x2,double y1,double y1,double z1,double z2)
{
return sqrt((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1) + (z2-z1)*(z2-z1));
}
int main()
{
double x1,x2,y1,y2,z1,z2;
cin >> x1 >> y1 >> z1;
cin >> x2 >> y2 >> z2;
cout << dist(x1,0,y1,0,z1,0) << endl; 
cout << dist(x2,0,y2,0,z2,0) << endl; 
cout << dist(x1,x2,y1,y2,z1,z2) << endl; 
return 0;
}