zigzag traversal in a binary tree #120
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The idea is to use two stacks. We can use one stack for printing from left to right and other stack for printing from right to left. In every iteration, we have nodes of one level in one of the stacks. We print the nodes, and push nodes of next level in other stack.
hemanth-kotagiri
suggested changes
Nov 5, 2020
| s2.pop() | ||
| print(temp.data, end = " ") | ||
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| # Note that is rightt is appended before left |
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Just one small change. rightt to right. Writing well-documented code is extremely important. Try fixing any other issues of the same kind. Code LGTM.
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sure, will do it
abranhe
approved these changes
Nov 7, 2020
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Thanks so much for your contribution to The All ▲lgorithms Project. Without people like you submitting Pull Requests we couldn't run this project. You rock!
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The idea is to use two stacks. We can use one stack for printing from left to right and other stack for printing from right to left. In every iteration, we have nodes of one level in one of the stacks. We print the nodes, and push nodes of next level in other stack.
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