Solution #199 - Daniel/Edited - 17.03.2025 #38
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JRS296
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Mar 21, 2025
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| Left View of tree. | ||
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| Brute Force Approach: | ||
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| 1. Perform a complete level order traversal of the tree and maintain a matrix of all nodes visited by level. | ||
| 2. Choose only the first element for each level and return. | ||
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| Time Complexity: O(n) | ||
| Space Complexity: O(n) | ||
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| Optimal Approach: | ||
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| 1. Perform DFS traversal of the tree prioritising the left subtree each time. | ||
| 2. Take the first element of each level and return. | ||
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| For right view, repeat the same but take the last element of the matrix or perform DFS with the right subtree prioritised. |
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Can be much better! utilize Markdown and try to explain each step + Complexities.
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Solution and Explanation added.