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Merge pull request #782 from Jerry-306/patch-15

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修改 0107 二叉树层序遍历II JavaScript解法
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程序员Carl
2021-09-29 10:36:45 +08:00
committed by GitHub
parent f393b04233 a2f7147a93
commit fad43da891
1 changed files with 3 additions and 2 deletions
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problems/0102.二叉树的层序遍历.md
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@ -421,9 +421,10 @@ var levelOrderBottom = function(root) {
node.left&&queue.push(node.left); node.left&&queue.push(node.left);
node.right&&queue.push(node.right); node.right&&queue.push(node.right);
} }
res.push(curLevel); // 从数组前头插入值，避免最后反转数组，减少运算时间
res.unshift(curLevel);
} }
return res.reverse(); return res;
}; };
``` ```