Cody

Problem 44401. Vertical matrix sort

Given a matrix x with n rows and m columns, return a matrix y with 2n rows and m columns, such that every column in x is sorted from low to high and then from high to low.

Example:

x = 8  9  3  9
    9  6  5  2
    2  1  9  9

y = 2  1  3  2
    8  6  5  9
    9  9  9  9
    9  9  9  9
    8  6  5  9
    2  1  3  2
Solve

Solution Stats

20.37% Correct | 79.63% Incorrect
Last Solution submitted on Dec 05, 2019

Problem Comments

Problem Recent Solvers268

Suggested Problems

More from this Author25

Problem Tags

22105 matrices sort