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CyC2018 2018-04-06 16:43:06 +08:00
parent 4012e90b67
commit 1085339936
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notes/算法.md
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@ -301,10 +301,12 @@ public class Queue<Item> {
} }
// 出队列 // 出队列
public Item dequeue(){ public Item dequeue() {
if (isEmpty()) return null;
Node node = first; Node node = first;
first = first.next; first = first.next;
N--; N--;
if (isEmpty()) last = null;
return node.item; return node.item;
} }
} }