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Merge pull request youngyangyang04#754 from fengwei2002/patch-1
纠错 这里不需要声明 vector<int> vec
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problems/0102.二叉树的层序遍历.md

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@@ -1173,7 +1173,7 @@ public:
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if (root != NULL) que.push(root);
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while (!que.empty()) {
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int size = que.size();
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vector<int> vec;
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// vector<int> vec;
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Node* nodePre;
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Node* node;
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for (int i = 0; i < size; i++) {

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