#include <iostream>
#include <cmath>

using namespace std;

struct dot {
    int X;
    int Y;
    int Z;
};

double findMinDist(dot* arr, unsigned int size) {
    unsigned int v1 = pow(arr[0].X - arr[1].X, 2);
    unsigned int v2 = pow(arr[0].Y - arr[1].Y, 2);
    unsigned int v3 = pow(arr[0].Z - arr[1].Z, 2);

    double min = sqrt(v1 + v2 + v3);
    for (unsigned int i = 0; size - 1 > i; i++) {
        for (unsigned int k = i + 1; size > k; k++) {
            v1 = pow(arr[i].X - arr[k].X, 2);
            v2 = pow(arr[i].Y - arr[k].Y, 2);
            v3 = pow(arr[i].Z - arr[k].Z, 2);

            double val = sqrt(v1 + v2 + v3);
            if (val < min) { min = val; }
        }
    }

    return min;
}

const unsigned int COUNT_DOT = 10000;

int main() {
    dot arr_dot[COUNT_DOT];

    for (unsigned int i = 0; COUNT_DOT > i; i++) {
        cout << "Enter X Y Z: ";
        cin >> arr_dot[i].X >> arr_dot[i].Y >> arr_dot[i].Z;
    }

    cout.setf(ios::scientific);
    cout << "Result: " << findMinDist(arr_dot, COUNT_DOT) << endl;



    return 0;
}