Question

Question 1 Write the following two functions. The first function accepts as input a two-dimensional array of integers. It returns two results: the sum of the elements of the array and the average The second function accepts as input a two-dimensional array of integers and integer value V. It returns true if the value V is found in the array, false otherwise Write a main program that declares and initializes the following array: const int ROws 4 const int COLS = 4; int box[ROWSI[COLS] 111,8,0,-4), (74,5,13,42), (29,-7,45,43, 100,23,-3,613 Your program needs to call both functions and display appropriate messages from main.

Please answer in C++, and Please consider ALL parts of the question, especially where it asks the user for V. So there should be a "cin >> V" somewhere.

The last guy did not answer it correctly so please make sure you do! Thank You!!

Answer 1

The code for your question is as follows:

#include <iostream>
using namespace std;
const int ROWS=4; //Rows and Columns declaration at top
const int COLS=4; //as we are using arrays

struct result       //Created structure result to store
{                   //to store both sum and average of
   int sum;       //array and return both of them
   double average;   //from the function below

};

result sum_avg(int arr[ROWS][COLS]) //Calculates sum and average
{  
   int sum=0; //Initializing sum to zero
   for(int i=0;i<ROWS;i++) //Iterating the 2D array along the row
   {
       for(int j=0;j<COLS;j++) //Iterating the 2D array along the columns
       {
           sum+=arr[i][j]; //Adding each element to sum
       }
   }
   //Calculating average by dividing sum by total number of elements
   double average=(double)sum/(ROWS*COLS);
   //Created result obj to store sum and average
   result obj;
   obj.sum=sum; //Setting value of sum to sum we calculated
   obj.average=average; //Setting average to average we calculated
   return obj; //Returning the struct object
}
bool search(int arr[ROWS][COLS],int v) //Search function
{

  
   for(int i=0;i<ROWS;i++) //Iterating the 2D array
   {
       for(int j=0;j<COLS;j++)
       {
           if(arr[i][j]==v) //If we find the element, return true
               return true;

       }
   }
   return false; //If we reach the end of the function, return false

}
int main() //Main function
{
  
   int v; //Initliazing v and box array
   int box[ROWS][COLS]={{11,8,0,-4},{75,5,13,42},{29,-7,45,4},{100,23,-3,61}};
   //Declaring result a which stores the result from sum_avg function
   result a=sum_avg(box); //Called the sum_avg function and passed box to it
   //And sum and average is stored in a
   cout<<"The sum is:"<<a.sum<<"\n"; //Printing the sum stored in a
   cout<<"The average is:"<<a.average<<"\n";//Printing the average stored in a
   cout<<"Enter a number to be searched:";//Asking user to input v
   cin>>v;
   bool found=search(box,v);//Calling search function for box array and v
   if(found) //If search returns true
       cout<<"Number found in array";
   else    //If search returns false
       cout<<"Number not found";

}
Output:

The sum is:402 he av Enter a number to be searched:100 erage is:25.125 Number found in array