Question

Two-dimensional arrays and functions

Write the code CIS22A-HW7-XXXXX.cpp to create and print a 12 x 12 multiplication table using a 2-dimensional array and functions with nested loops.

Define the following Global Constants at the top, before main function:

const int ROW_SIZE = 12;

const int COL_SIZE = 12;

const int WIDTH = 4;

Two required functions are:

void createTable(int [][COL_SIZE], int rows);

void printTable(int [][COL_SIZE], int rows);

Use this main code without any change:

int main()

{

        int table[ROW_SIZE] [COL_SIZE];

        createTable(table, ROW_SIZE);

        printTable(table, ROW_SIZE);

        return 0;

}

Suggestion:

- Do not use any other constant beside the above 3 global constants.

- In createTable() function, use nested "for" loops to fill the table with products of numbers. There is no output (cout) in this function.

- In printTable() function, use a separate simple loop to print the column header (1, 2, 3,.....) first.

Then use nested "for" loops to print the numbers from the table.

Use setw() with the WIDTH constant to align the numbers nicely.

Answer 1

#include <iostream>
#include <iomanip>
using namespace std;

//Declaring global constants
const int ROW_SIZE = 12;
const int COL_SIZE = 12;
const int WIDTH = 4;

//Function declarations
void createTable(int [][COL_SIZE], int rows);
void printTable(int [][COL_SIZE], int rows);

int main ()

{
   //Creating an 2-D Array of type int
int table[ROW_SIZE] [COL_SIZE];

//Calling the functions
createTable(table, ROW_SIZE);
printTable(table, ROW_SIZE);
return 0;

return 0;
}

//function implementation which create the multiplication table
void createTable(int table[][COL_SIZE], int rows)
{
   for(int i=1;i<=rows;i++)
   {
       for(int j=1;j<=COL_SIZE;j++)
       {
       table[i-1][j-1] = i * j;
       }
   }
}

//Function implementation which dislays the multiplication table
void printTable(int table[][COL_SIZE], int rows)
{
       for(int i=0;i<rows;i++)
   {
       for(int j=0;j<COL_SIZE;j++)
       {
       cout<<setw(5)<<table[i][j];
       }
       cout<<endl;
   }
}

______________________

Output:

CAProgram Files (x86) Dev-CpplMinGW64 bin MultiplicationTableOfSize12by12.exe 9 1 11 12 8 1 12 14 16 18 20 22 24 9 12 15 18 21 24 27 30 33 36 8 12 16 2 24 28 32 36 40 4448 5 115 20 25 30 35 445 5055 60 6 12 18 24 30 36 42 48 54 60 66 72 14 21 28 35 42 49 56 63 0 7 84 8 16 24 32 40 48 56 64 72 80 88 96 9 18 2 36 45 54 63 72 81 90 99108 4 8 4 10 20 30 40 50 60 70 80 9 10G 11 12 11 22 33 44 55 66 7 88 99 11 121 132 12 24 36 48 6 72 84 96 108 12 132 14 Process exited after 0.282 seconds with return ualue 0 Press any key to continue _

____________Thank You