SUGGESTED_SIZE = 10

# Author:  James Tam
# Version: May 27, 2020

# args(integer,integer)
# Creates a 2D list with num rows = 1st argument, num columns = 2nd argument
# return (reference to the list)
def createList(maxRows,maxColumns):
    #Declare variables for function
    aList = []
    r = -1
    c = -1

    for r in range(0,maxRows,1):
        aList.append([]) #Create a reference to empty 1D list (row)
        #Each time through the inner loop a new row is created, each element is a star
        #Num stars = maxColumns
        for c in range(0,maxColumns,1):
            aList[r].append("*")  #Add a new element onto the end of the 1List
    return(aList)

# args(reference to a list,integer,integer)
# displays each element of list with a row on it's own line
# return(nothing)
def display(aList,maxRows,maxColumns):
    #Declare variables for function
    r = -1
    c = -1

    r = 0
    # Each iteration of the outter loop accesses another row
    while (r < maxRows):
        c = 0
        # Each iteration of the inner loop accesses another element along that row
        while (c < maxColumns):
            #Display each element along a row on the same line
            print("%s" %(aList[r][c]),end="")
            c = c + 1
        print("<EOL>")  #After each row printed add a new line (EOL)
        r = r + 1

# args(none)
# Gets the number of rows and columns (list size). It doesn't error check the input but 
# does suggest the max size at the prompt.
# return(integer,integer)
def getSize():
    #Declare variables for function
    maxRows = -1
    maxColumns = -1
   
    print("Enter max. # of rows, suggested max=%d: " %(SUGGESTED_SIZE), end="")
    maxRows = int(input(""))
    print("Enter max. # of columns, suggested max=%d: " %(SUGGESTED_SIZE), end="")
    maxColumns = int(input(""))
    return(maxRows,maxColumns)

#Starting execution point for the program
def start():
    #Declare variables local to starty
    aList = []
    maxRows = -1
    maxColumns = -1

    maxRows,maxColumns = getSize()
    aList = createList(maxRows,maxColumns)
    display(aList,maxRows,maxColumns)

start()