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CyC2018
2018-02-27 15:03:36 +08:00
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23
notes/剑指 offer 题解.md
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@ -147,7 +147,11 @@ public boolean Find(int target, int [][] array) {
**<EFBFBD><EFBFBD>ĿҪ<EFBFBD><EFBFBD>**
<EFBFBD><EFBFBD> O(1) <20>Ŀռ临<D5BC>Ӷ<EFBFBD><D3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⡣
<EFBFBD><EFBFBD> O(1) <20>Ŀռ临<D5BC>ӶȺ<EFBFBD> O(n) <20>Ŀռ临<D5BC>Ӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⡣
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˼·**
<EFBFBD>Ӻ<EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD>ı<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
```java
public String replaceSpace(StringBuffer str) {
@ -188,6 +192,23 @@ public ArrayList<Integer> printListFromTailToHead(ListNode listNode) {
}
```
ʹ<EFBFBD><EFBFBD> Stack
```java
public ArrayList<Integer> printListFromTailToHead(ListNode listNode) {
Stack<Integer> stack = new Stack<>();
while (listNode != null) {
stack.add(listNode.val);
listNode = listNode.next;
}
ArrayList<Integer> ret = new ArrayList<>();
while (!stack.isEmpty()) {
ret.add(stack.pop());
}
return ret;
}
```
<EFBFBD>ݹ<EFBFBD>
```java