4.1

#include "stdio.h"
#include "locale.h"
#include "math.h"


float dotProduct(int xu, int yu, int zu, int xv, int yv, int zv, int* xp, int* yp, int* zp)
{
    *xp = yu * zv - zu * yv;
    *yp = zu * xv - xu * zv;
    *zp = xu * yv - yu * xv;

    return sqrt(xu * xu + yu * yu + zu * zu);
}


void main() {

    setlocale(LC_ALL, "rus");

    int xu, yu, zu, xv, yv, zv, xp, yp, zp;

    for (int i = 0; i < 3; i++) {
        printf("Введите координаты вектора u(x,y,z) и вектора v(x,y,z):\n");
        scanf_s("%d%d%d%d%d%d", &xu, &yu, &zu, &xv, &yv, &zv);
        printf("Длина вектора p(%d,%d,%d) равна %.1f\n", xp, yp, zp, dotProduct(xu, yu, zu, xv, yv, zv, &xp, &yp, &zp));
    }

    getchar(); getchar();

}