Solve it using python : NOTE:

$$ YOU CANNOT USE ANY BUILT$-$IN FUNCTION EXCEPT len IN

PYTHON. $[$negative indexing, append is prohibited$]$

$$ You can use the attribute $$shape$$ of numpy arrays

$$ YOU HAVE TO MENTION SIZE OF ARRAY WHILE INITIALIZATION

$$ YOUR CODE SHOULD WORK FOR ANY VALID INPUTS. $[$Make

changes to the Sample Inputs and check whether your program works

correctly$]..$ Here is the code : def compress$\_$matrix$($mat$)$:

#TO DO

matrix$=$np$.$array$([[1,2,3,4],$

$[5,6,7,8],$

$[1,3,5,2],$

$[-2,0,6,-3]$

$])$

print$\_$matrix$($matrix$)$

print$(\text{'}$################$\text{'})$

print$()$

returned$\_$array$=$compress$\_$matrix$($matrix$)$

print$\_$matrix$($returned$\_$array$)$

#This should print

#$|14|22|$

#$--------------$

#$|2|10|$

#$--------------$