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Java for LeetCode 232 Implement Queue using Stacks

时间:2015-09-23 13:16:29      阅读:379      评论:0      收藏:0      [点我收藏+]
	Stack<Integer> stack=new Stack<Integer>();
	    public void push(int x) {
	        stack.push(x);
	    }

	    // Removes the element from in front of queue.
	    public void pop() {
	        stack.remove(0);
	    }

	    // Get the front element.
	    public int peek() {
	        return stack.get(0);
	    }

	    // Return whether the queue is empty.
	    public boolean empty() {
	    	return stack.isEmpty();
	        
	    }

 

Java for LeetCode 232 Implement Queue using Stacks

原文:http://www.cnblogs.com/tonyluis/p/4831924.html

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