2227 - DS_2020_QUIZ5_Sorting Scoreboard

Time

2020/12/23 18:30:00 2020/12/23 20:00:00

Clarification

# Problem Asker Description Reply Replier Reply Time For all team

# Problem Pass Rate (passed user / total user)
13065 DS_2020_QUIZ5_Sorting

13065 - DS_2020_QUIZ5_Sorting   

Description

Given a sequence, please calculate the number of smaller elements at the right of each element.

Note:

  • An algorithm with time complexity O(n2) will not pass all the test cases, but it should work for some of them.
  • To pass all the test cases, please design an O(nlogn) algorithm.

Input

  • Input includes multiple sets of test cases, and each test case consists of two lines.
  • The first line contains one integer n.
  • The second line includes a n integers sequence
  • There won’t be a new line at the end of the file

Note:

  1. 1<= n <= 1000000
  2. 1 <= value of each element <= 2^30 - 1

Output

  • For each test case, print the number of smaller elements which are at the right of each element. For example, given a test case as follows:
    5
    2 8 5 1 7

    The output is: 1 3 1 0 0

This is because 2 has {1}, 8 has {5, 1, 7}, and 5 has {1} which are at the right and smaller than them, respectively, while 1 and 7 do not have any element at their right and smaller than each of them.

  • Each output number should be followed by a space.
  • Output the ‘\n’ at the end of each test case output.

Sample Input  Download

Sample Output  Download

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