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9.3 code practice

Write a program that creates a 4 x 5 array called numbers. The elements in your array should all be random numbers between -30 and 30, inclusive. Then, print the array as a grid.

For instance, the 2 x 2 array [[1,2],[3,4]] as a grid could be printed as:

1 2
3 4
Sample Output
18 -18 10 0 -7
-20 0 17 29 -26
14 20 27 4 19
-14 12 -29 25 28
Note: the numbers generated in your program will not match the sample output, as they will be randomly generated.

pls help


Sagot :

The program is an illustration of arrays; Arrays are variables that are used to hold multiple values of the same data type

The main program

The program written in C++, where comments are used to explain each action is as follows:

#include <iostream>

#include <cstdlib>

#include <ctime>

using namespace std;

int main(){

   //This declares the array

   int myArray[4][5];

   //This seeds the time

   srand(time(NULL));

   //The following loop generates the array elements

   for(int i = 0; i< 4;i++){

       for(int j = 0; j< 5;j++){

       myArray[i][j] = rand()%(61)-30;

   }    

   }

   //The following loop prints the array elements as grid

   for(int i = 0; i< 4;i++){

       for(int j = 0; j< 5;j++){

       cout<<myArray[i][j]<<" ";

   }    

   cout<<"\n";

   }

   return 0;

}

Read more about arrays at:

https://brainly.com/question/22364342