Here's a randomly generated binary tree. The traversal orders are shown below. Just refresh the page to generate a new tree.

Pre-Order

[976, 131, 451, 18, 135, 44, 293, 586, 377, 831, 628]

In-Order

[135, 18, 451, 293, 44, 586, 131, 628, 831, 377, 976]

Post-Order

[135, 18, 293, 586, 44, 451, 628, 831, 377, 131, 976]