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LeetCode - 617. Merge Two Binary Trees알고리즘/알고리즘 문제 복기 2021. 2. 26. 23:50
leetcode.com/problems/merge-two-binary-trees/
Merge Two Binary Trees - LeetCode
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leetcode.com
Answer
처음에는 output_node를 따로 만들어서 풀어보려 했지만
NullPointerException때문에 계속해서 에러가 나는 바람에
기존의 root1을 변경하는 식으로 코드를 짰다.
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