#include <iostream>
#include <algorithm>

using namespace std;

int main()
{
    double x1, x2, x3, v1, v2, v3;
    double time12, time23, time13;
    cout << "Input x1: ";
    cin >> x1;
    cout << "Input speed of x1: ";
    cin >> v1;
    cout << "Input x2: ";
    cin >> x2;
    cout << "Input speed of x2: ";
    cin >> v2;
    cout << "Input x3: ";
    cin >> x3;
    cout << "Input speed of x3: ";
    cin >> v3;
    if (x1 >= x2)
        time12 = (x1 - x2) / (v2 - v1);
    else
        time12 = (x2 - x1) / (v1 - v2);
    if (x1 >= x3)
        time13 = (x1 - x3) / (v3 - v1);
    else
        time13 = (x3 - x1) / (v1 - v3);
    if (x2 >= x3)
        time23 = (x2 - x3) / (v3 - v2);
    else
        time23 = (x3 - x2) / (v2 - v3);
    if (time12 >= 0)
        cout << "Points x1 and x2 intersect at time: " << time12 << endl;
    else
        cout << "Points x1 and x2 do not intersect!\n";
    if (time13 >= 0)
        cout << "Points x1 and x3 intersect at time: " << time13 << endl;
    else
        cout << "Points x1 and x3 do not intersect!\n";
    if (time23 >= 0)
        cout << "Points x2 and x3 intersect at time: " << time23 << endl;
    else
        cout << "Points x2 and x3 do not intersect!\n";
}