Поезд ехал t1 ч со скоростью v1 км / ч, t2 ч со скоростью v2 и t3 ч со скоростью v3. Определить пройденные пути с разной

#include <iostream>
using namespace std;
 
int main()
{
    int t1(0),v1(0),t2(0),v2(0),t3(0),v3(0);
    cout << "Input t1 : ";
    cin >> t1;
    cout << "Input t2 : ";
    cin >> t2;
    cout << "Input t3 : ";
    cin >> t3;
    cout << "Enter v1 : ";
    cin >> v1;
    cout << "Enter v2 : ";
    cin >> v2;
    cout << "Enter v3 : ";
    cin >> v3;
    
    cout << "First segment size (with speed : " << v1 << " ) was = " << t1*v1 << "\n";    
    cout << "Second segment size (with speed : " << v2 << " ) was = " << t2*v2 << "\n";
    cout << "Third segment size (with speed : " << v3 << " ) was = " << t3*v3 << "\n";
    cout << "Full way size : " << (t1*v1) + (t2*v2) +(t3*v3) << "\n";
    
    cout << endl;
    return 0;
}

#include <iostream>
using namespace std;
 
int main()
{
    int arr[3],arr1[3];
    cout << "Input t1 : ";
    cin >> arr[0];
    cout << "Input t2 : ";
    cin >> arr[1];
    cout << "Input t3 : ";
    cin >> arr[2];
    cout << "Enter v1 : ";
    cin >> arr1[0];
    cout << "Enter v2 : ";
    cin >> arr1[1];
    cout << "Enter v3 : ";
    cin >> arr1[2];
    
    cout << "First segment size (with speed : " << arr1[0] << " ) was = " << arr[0]*arr1[0] << "\n";    
    cout << "Second segment size (with speed : " << arr1[1] << " ) was = " << arr[1]*arr1[1] << "\n";
    cout << "Third segment size (with speed : " << arr1[2] << " ) was = " << arr1[2] * arr[2] << "\n";
    cout << "Full way size : " << (arr[0] * arr1[0]) + (arr[1] * arr1[1]) + (arr[2] * arr1[2]) << "\n";
    
    cout << endl;
    return 0;
}

#include <iostream>
#include <ctime>
using namespace std;
 
int main()
{
    srand(time(0));
    int arr[3],arr1[3];
 
    for(int i = 0;i<3;++i){
        arr[i] = rand() % 16;
        cout << i << " time is : " << arr[i] << "\n";
    }
    cout << "\n";
    for(int i = 0;i<3;++i){
        arr1[i] = rand() % 4;
        cout << i << " speed is : " << arr1[i] << "\n";
    }
    cout << "\n";
 
    cout << "First segment size (with speed : " << arr1[0] << " ) was = " << arr[0]*arr1[0] << "\n";
    cout << "Second segment size (with speed : " << arr1[1] << " ) was = " << arr[1]*arr1[1] << "\n";
    cout << "Third segment size (with speed : " << arr1[2] << " ) was = " << arr1[2] * arr[2] << "\n";
    cout << "Full way size : " << (arr[0] * arr1[0]) + (arr[1] * arr1[1]) + (arr[2] * arr1[2]) << "\n";
 
    cout << endl;
    return 0;
}