10233_BinaryTree

2022-5-16 18:16| 发布者: Hocassian| 查看: 83| 评论: 0|原作者: 肇庆学院ACM合集

摘要:
C:\Users\Administrator\Downloads\2019-10-12-10-14-3-89504682862399-Problem List-采集的数据-后羿采集器.html

Pro.ID

10233

Title

Binary Tree

Title链接

http://10.20.2.8/oj/exercise/problem?problem_id=10233

AC

1

Submit

2

Ratio

50.00%

时间&空间限制

  • Time Limit: 1000/500 MS (Java/Others)     Memory Limit: 32768/32768 K (Java/Others)
  • 描述

    Binary trees are a common data structure in computer science. In this problem we will look at an infinite binary tree where the nodes contain a pair of integers. The tree is constructed like this:

    • The root contains the pair (1, 1).

    • If a node contains (a, b) then its left child contains (a + b, b) and its right child (a, a + b)

    Problem
    Given the contents (a, b) of some node of the binary tree described above, suppose you are walking from the root of the tree to the given node along the shortest possible path. Can you find out how often you have to go to a left child and how often to a right child?

    输入

    The first line contains the number of scenarios.
    Every scenario consists of a single line containing two integers i and j ( 1 ≤ i, j 2*109 ) that represent
    a node (i, j). You can assume that this is a valid node in the binary tree described above.

    输出

    Description

    Binary trees are a common data structure in computer science. In this problem we will look at an infinite binary tree where the nodes contain a pair of integers. The tree is constructed like this:

    • The root contains the pair (1, 1).

    • If a node contains (a, b) then its left child contains (a + b, b) and its right child (a, a + b)

    Problem
    Given the contents (a, b) of some node of the binary tree described above, suppose you are walking from the root of the tree to the given node along the shortest possible path. Can you find out how often you have to go to a left child and how often to a right child?
    Input

    The first line contains the number of scenarios.
    Every scenario consists of a single line containing two integers i and j ( 1 ≤ i, j 2*109 ) that represent
    a node (i, j). You can assume that this is a valid node in the binary tree described above.

    Output

    The output for every scenario begins with a line containing "Scenario #i:", where i is the number of the scenario starting at 1. Then print a single line containing two numbers l and r separated by a single space, where l is how often you have to go left and r is how often you have to go right when traversing the tree from the root to the node given in the input. Print an empty line after every scenario.

    Sample Input
    3
    42 1
    3 4
    17 73
    Sample Output
    Scenario #1:
    41 0
    
    Scenario #2:
    2 1
    
    Scenario #3:
    4 6
    Source

    样例输入

    3
    42 1
    3 4
    17 73

    样例输出

    Scenario #1:
    41 0
    
    Scenario #2:
    2 1
    
    Scenario #3:
    4 6

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