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@ -453,7 +453,7 @@ comments: true
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```js title=""
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/* 二叉树的数组表示 */
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// 直接使用 null 来表示空位
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let tree = [1, 2, 3, 4, 5, 6, 7, null, null, null, null, null, null, null, null]
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let tree = [1, 2, 3, 4, null, 6, 7, 8, 9, null, null, 12, null, null, 15];
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```
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=== "TypeScript"
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@ -461,7 +461,7 @@ comments: true
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```typescript title=""
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/* 二叉树的数组表示 */
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// 直接使用 null 来表示空位
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let tree = [1, 2, 3, 4, 5, 6, 7, null, null, null, null, null, null, null, null]
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let tree: (number | null)[] = [1, 2, 3, 4, null, 6, 7, 8, 9, null, null, 12, null, null, 15];
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```
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=== "C"
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