C++ program, Microsoft Visual Studio (codes) Write a program that creates a 2D a

Question

C++ program, Microsoft Visual Studio (codes)

Write a program that creates a 2D array of integers with 100 rows and 15 columns. Populate the array in the following way:

- if the product of the row and column index is even, insert a random integer value between 500 and 1000

- if the product of the row and column index is odd, insert a random integer value between -1000 and -500

Display all the values in your array in row-by-row format. Calculate the average of all 1500 values and display the result.

Please check if you are getting the right answer

Explanation / Answer

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

int getrand(int min,int max)
{
   return(rand()%(max-min)+min);
}

int main()
{
   int arr[100][15];
   int i,j;
   int avg = 0;
   for(i=0;i<100;i++)
   {
       for(j=0;j<15;j++)
       {
           if((i*j)%2 == 0)
           {
               arr[i][j] = getrand(500,1000);
               avg = avg+arr[i][j];
           }
           else
           {
               arr[i][j] = getrand(-1000,-500);
               avg = avg+arr[i][j];
           }
              
       }
   }
  
   for(i=0;i<100;i++)
   {
       for(j=0;j<15;j++)
       {
           cout << arr[i][j] << " ";
       }
       cout << " ";
   }
  
   cout << " Average of all the numbers is " ;
   cout << avg/1500.0;
  
   return 0;
}

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