Please help me write a matlab code. Very lost.

A typical Sudoku puzzle The solution to the puzzle

To verify a solution to a Sudoku puzzle, each row, column, and box must be checked to verify that all the digits from 1 to 9 appear exactly once. Only if all the rows, columns, and boxes are valid is the solution correct. Thus, the steps to verify a Sudoku solution are:

Verify rows

Verify columns

Verify boxes

Consider an array of length 5 that is supposed to contain the numbers from 1 to 5 each exactly once. How would you check that this is true?

STOP and THINK. How would you do it? Write or draw on a piece of paper a method that you could use to verify that a list of numbers of length contains each number from 1 to exactly once. Do NOT think in code. Do NOT try to figure out how to do this in MATLAB. Write in English or draw in pictures how you would solve this problem. You must think step-by-step.

Using the algorithm you just developed, determine whether the following lists of numbers contain each number from 1 to 5 exactly once.

5 3 1 2 4

4 5 0 5 3

1 5 4 3 6 2