Update 0707.设计链表.md
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@ -106,12 +106,9 @@ public:
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// 如果index大于链表的长度,则返回空
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// 如果index小于0,则置为0,作为链表的新头节点。
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void addAtIndex(int index, int val) {
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if (index > _size) {
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if (index > _size || index < 0) {
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return;
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}
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else if (index < 0) {
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index = 0;
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}
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LinkedNode* newNode = new LinkedNode(val);
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LinkedNode* cur = _dummyHead;
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while(index--) {
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