Pls Help With This C Program

Question

For points P(x1,y1,z1) and Q(x2,y2,z2) in 3-dimensional space, the Euclidean distance between them is square-root((x2−x1)2+(y2−y1)2+(z2−z1)2)

Write a struct named point in c which has values x(float), y(float) and z(float) which will represent the x, y and z coordinates of a point in 3 dimensional space. Then ask the user to enter the total number of points to be entered. If the number of points to be entered is an odd number, calculate the Euclidean distance of each point from the origin (0,0,0) and show the closest point to origin. Else, show the farthest point.

Answer 1

This seems to do the trick:

---

#include <stdio.h>
#include <math.h>

typedef struct Point {
    float x;
    float y; 
    float z;
} Point;

double findDistanceFromOrigin(Point p) {
    double x = p.x;
    double y = p.y;
    double z = p.z;
    //square-root((x2−x1)2+(y2−y1)2+(z2−z1)2)
    double distance = sqrt(pow(x, 2.0) + pow(y, 2.0) + pow(z, 2.0));
    
    return distance;
    
}

int main()
{
    int numberOfPoints;
    printf("Enter number of points:");
    scanf ("%d", &numberOfPoints);
    Point points[numberOfPoints];
    Point closest;
    Point farthest;
    for (int i = 0; i < numberOfPoints; i++) {
        printf("Enter x-coordinate for point %d:", i);
        scanf("%f",&points[i].x);
        printf("Enter y-coordinate for point %d:", i);
        scanf("%f", &points[i].y);
        printf("Enter z-coordinate for point %d:", i);
        scanf("%f", &points[i].z);
        if (i == 0) {
            closest = points[i];
            farthest = points[i];
        } else {
            if (findDistanceFromOrigin(points[i]) < findDistanceFromOrigin(closest)) {
                closest = points[i];
            }
            if (findDistanceFromOrigin(points[i]) > findDistanceFromOrigin(farthest)) {
                farthest = points[i];
            }
        }
    }
    
    if (numberOfPoints % 2) {
        printf("The closest point is located at: (%f, %f, %f)\n", closest.x, closest.y, closest.z);
    } else {
        printf("The farthest point is located at: (%f, %f, %f)\n", farthest.x, farthest.y, farthest.z);
    }
    
    return 0;
}