Code
The highlighted line runs next. The pill shows the live values in the running call.
Cost
Work done so far, and how the two solutions compare
The tree, seen from the right
◀ marks the viewer on each level
The highlighted line runs next. The pill shows the live values in the running call.
Work done so far, and how the two solutions compare
◀ marks the viewer on each level
Keyboard: ← → step, Space play or pause. Enter the tree in level order with null for missing children, as LeetCode does (up to 15 nodes, 5 levels, values −100 to 100).