Input: x = 3, y = 5, target = 4

Output: true

Explanation:

Follow these steps to reach a total of 4 liters:

1. Fill the 5-liter jug (0, 5).
2. Pour from the 5-liter jug into the 3-liter jug, leaving 2 liters (3, 2).
3. Empty the 3-liter jug (0, 2).
4. Transfer the 2 liters from the 5-liter jug to the 3-liter jug (2, 0).
5. Fill the 5-liter jug again (2, 5).
6. Pour from the 5-liter jug into the 3-liter jug until the 3-liter jug is full. This leaves 4 liters in the 5-liter jug (3, 4).
7. Empty the 3-liter jug. Now, you have exactly 4 liters in the 5-liter jug (0, 4).

Reference: The Die Hard example.

Input: x = 2, y = 6, target = 5

Output: false

Input: x = 1, y = 2, target = 3

Output: true

Explanation: Fill both jugs. The total amount of water in both jugs is equal to 3 now.