leetcode.5601. 设计有序流(design-an-ordered-stream)

妖狐艹你老母 2022-12-21 06:13 143阅读 0赞

# 设计有序流(design-an-ordered-stream) #

设计有序流(design-an-ordered-stream)

package weekly_contest_215;
    
    import java.util.ArrayList;
    import java.util.Collections;
    import java.util.List;
    
    //5601. 设计有序流(design-an-ordered-stream)
    public class OrderedStream { 
    
    	private int len;
    	private int ptr;
    	private String[] str;
    
    	public OrderedStream(int n) { 
    		str = new String[n];
    		ptr = 1;
    		len = n;
    	}
        
        public List<String> insert(int id, String value) { 
        	int index = id - 1;
    		str[index] = value;
    		List<String> list = new ArrayList<>();
    		if (id == ptr) { 
    			while (index<len && str[index]!=null) { 
    				list.add(str[index]);
    				index++;
    			}
    			ptr = index + 1;
    			return list;
    		}
    		return Collections.EMPTY_LIST;
        }
        
        public static void main(String[] args) { 
        	OrderedStream os= new OrderedStream(5);
        	System.out.println(os.insert(3, "ccccc")); // 插入 (3, "ccccc")，返回 []
        	System.out.println(os.insert(1, "aaaaa")); // 插入 (1, "aaaaa")，返回 ["aaaaa"]
        	System.out.println(os.insert(2, "bbbbb")); // 插入 (2, "bbbbb")，返回 ["bbbbb", "ccccc"]
        	System.out.println(os.insert(5, "eeeee")); // 插入 (5, "eeeee")，返回 []
        	System.out.println(os.insert(4, "ddddd")); // 插入 (4, "ddddd")，返回 ["ddddd", "eeeee"]
    	}
        
    }
    
    /** * Your OrderedStream object will be instantiated and called as such: * OrderedStream obj = new OrderedStream(n); * List<String> param_1 = obj.insert(id,value); */
    
    // ["OrderedStream", "insert", "insert", "insert", "insert", "insert"]
    // [[5], [3, "ccccc"], [1, "aaaaa"], [2, "bbbbb"], [5, "eeeee"], [4, "ddddd"]]