Problem 830. Fill a zeros matrix

Created by Aurelien Queffurust

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The aim is to fill an array of all zeros given a numerical value and the index of row and columns for this value.3 Inputs:<ul><li>value : unique numerical value to fill the square zero matrix</li><li>row : index of row to fill</li><li>col : corresponding index of column to fill</li></ul>1 Output:- a matrix of same size which have for each row and col the value specified.Example 1Fill a 2*3 matrix with the value -13 for the line 2 and column 3 :<pre class="language-matlab">value = -13;
row = 2;
col = 3;
</pre>output B is:<pre class="language-matlab">B = [0 0 0
 0 0 -13]
</pre>Example 2<pre class="language-matlab">value = 2012;
row = [ 2 3 3 5 ];
col = [ 1 1 4 4 ];
</pre>output B is<pre> B =</pre><pre> 0 0 0 0
 2012 0 0 0
 2012 0 0 2012
 0 0 0 0
 0 0 0 2012</pre>RestrictionsSorry, as usual I want to make this problem a little bit harder:
The following commands are forbidden: zeros, for, repmat, ones, while, and sparse.

The aim is to fill an array of all zeros given a numerical value and the index of row and columns for this value.

3 Inputs:

* value : unique numerical value to fill the square zero matrix
* row : index of row to fill
* col : corresponding index of column to fill

1 Output:

- a matrix of same size which have for each row and col the value  specified.

*Example 1*

Fill a 2*3 matrix with the value -13 for the line 2 and column 3 :
  
  value = -13;
  row = 2;
  col = 3;
  
output B is:

B =  [0     0     0
        0     0   -13]

*Example 2*

value = 2012;
  row = [ 2 3 3 5 ];
  col = [ 1 1 4 4 ];

output B is

B  =
  
             0           0           0           0
          2012           0           0           0
          2012           0           0        2012
             0           0           0           0
             0           0           0        2012

*Restrictions*

Sorry, as usual I want to make this problem a little bit harder:
The following commands are forbidden: *zeros, for, repmat, ones, while, and sparse*.

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Last Solution submitted on Sep 20, 2023

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Jean-Marie Sainthillier on 19 Jul 2012

Useful in practice !

Andrew Newell on 24 Aug 2013

There is an error in the statement of the problem: the matrix is the smallest that is compatible with the indices, and is not necessarily square.

Marcel on 11 Jan 2014

how about including "regexp" in the forbidden commandlist?

bainhome on 23 Aug 2014

"regexp" should be forbidden in this problem...ps:the forbidden is so powerful that I can put "zeros" word inside my function's comment.:lol

Milan Petrovic on 18 Jan 2017

How about forbiding regexp?

Said BOUREZG on 2 Jun 2017

I like it

Li Ding on 20 Oct 2017

In the problem, line 3 "square matrix" should have the "square" removed; plural of index will be indices... Nevertheless I like the problem especially with all those forbidden words.

Jiahang Li on 24 Feb 2018

funny

Adrian Scott on 12 Dec 2020

How can you iterate without a FOR loop?

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Problem 830. Fill a zeros matrix

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