$19$:$55$

exam$\_24\mathrm{.}11\mathrm{.}202318012024$

if row $<mn\; id="EditorElement\_1578297">1</mn>$ or row $>$ #grid $[1]$ then

print $("$Invalid row number"$)$

return

end

for $j=1,$ #grid$[$row$]$ do

print $($grid$[$row$][$j$])--$Adjust index to $1-$indexed for

display

end

end

$--$Main function to execute commands

function main$()$

local grid $=$ readGrid $("$grid$.$txt$")$

if not grid then

return

end

while true do

local command $=$ io$.$read$()$

if command$==$ "showcol" then $--$Q$1-$A

local col$=$ tonumber$($io$.$read$())$

if col then

showColumn$($grid$,$ col$)$

else

print$("$Invalid column number"$)$

end

else

if command$==$ "showrow" then $--$Q$1-$B

local row $=$ tonumber io$.$read $()$