The Pyramid in the two-dimensional array made of random stones - Lua, Lua

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--[[Pyramid.lua
Nachszon
December 2021

Program description
The program builds a pyramid (isosceles triangle).
The size of the Pyramid is a random size.
The stones are also random numbers.
The program calculates the length of the base, side and number of stones.
The above data are printed as technical data.

Release 02.12.2021
function func_technical_data(side,ground,stones)
Change the presentation of the number of stones from a floating point number to an integer

]]--

--[[function]]--
--Randomization engine start - ensures the uniqueness of the random number 
function func_start_rand_engine()
    
    math.randomseed(os.time())
    
    end

--[[function]]--
--The function that prints technical data of the Pyramid 
function func_technical_data(side,ground,stones)
    
    print ("\nTechnical data of the Pyramid:")
    print ("Side:"..side)
    print ("Ground:"..ground)
    print (string.format("Stones: %.0f", stones))
    
    end

--[[function]]--
--A function that creates a reference to an array 
function func_create_ref_array(max_row)
    
    pyramid_array={}
    for row=1,max_row do
        pyramid_array[row]={}
        end
    
    end

--[[function]]--
--Function that generates one random number from min_rand to max_rand 
function func_gen_rand(min_rand,max_rand)
    
    rand_number=math.random(min_rand,max_rand)
    
    return rand_number
    
    end

--[[function]]--
--The function that builds the Pyramid 
function func_pyramid_build(min_stone,max_stone)
    
    
    --Side size. The highest index of a row in a two-dimensional array 
    max_side=func_gen_rand(min_stone,max_stone,min_stone,max_stone)
    
    --Base size. Highest column index of a two-dimensional array 
    max_ground=(max_side*2)-1
    
    --Create a reference to an array pyramid_array
    func_create_ref_array(max_side)
    
    --left_limit and right limit are spaces in the two-dimensional array that will be left blank 
    --actually they will be filled with an invisible space
    left_limit=max_side-1
    right_limit=max_side+1
    
    
    --Filling the array.
    --If the column index is less than or equal to left_limit, fill in the field with a space. 
    --Fill in the remaining fields with a random number from 0-9
    for side=1,max_side do
        for ground=1,max_ground do
            
            if ground <= left_limit or ground >= right_limit then
                 pyramid_array[side][ground]=" " else
                pyramid_array[side][ground]=func_gen_rand(0,9)
                end
            
            end
        left_limit=left_limit-1
        right_limit=right_limit+1
        end
    
    
    --Technical data
    pyramid_side=max_side
    pyramid_ground=max_ground
    pyramid_stones=(max_side^2)
    
    
    end

--[[function]]--
--Printing the Pyramid 
function func_pyramid_show()
    
    for side=1,max_side do
        for ground=1,max_ground do
            io.write(pyramid_array[side][ground])
            end
        io.write("\n")
        end
    
    
    
    
    
    
    end

--Randomization engine start
func_start_rand_engine()
--Building a Pyramid 
func_pyramid_build(10,35)
--Printing the Pyramid 
func_pyramid_show()
--Technical data
func_technical_data(pyramid_side,pyramid_ground,pyramid_stones)

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Absolute running time: 0.14 sec, cpu time: 0.01 sec, memory peak: 5 Mb, absolute service time: 0,29 sec