The cows in this example move as follows:

The first and second cows meet at position 1.5 at time 0.5. The first cow now has velocity -1 and the second has velocity 1.
The second and third cows meet at position 2 at time 1. The second cow now has velocity -1 and the third has velocity 1.
The first cow reaches the left barn at time 2.
The second cow reaches the left barn at time 3.
The process now terminates since the sum of the weights of the cows that have reached a barn is at least half of the sum of the weights of all cows. The third cow would have reached the right barn at time 4.

Exactly two meetings occurred.

Meetings timer 1s memory 512MB

Meetings 1s 512MB