Question

Please send this C++ code with ( // ) Comments

1. In main, you have the following array declared:

int arr[5] = {1, 5, 3, 2}

a. What are the elements in the array? Create a function called

displayArr

that accepts the

array and the size of the array, and displays every element in the array.

b. Create a function called

findAverage

that accepts the array and the size of the array as

arguments, and returns the average of all elements in the array. Pay attention to the

return type of the function!

Answer 1

Code:

#include<iostream>
using namespace std;
void displayArr(int arr[],int size){   //displayArr function that displays elements in array
   int i;
   cout<<"The elements in array are "<<endl;
   for(i=0;i<size;i++){
       cout<<arr[i]<<" "; //displaying elements
   }
}
float findAverage(int arr[],int size){    //this function finds average of elements and returns average
   float avg=0;
   int i;
   for(i=0;i<size;i++){
       avg=avg+arr[i];   //calculating average
   }
   avg=avg/size;
   return avg; //returning average
}
int main(){
   int arr[5]={1,5,3,2},size=4;
   displayArr(arr,size);   //calling displayarr function
   cout<<endl<<"Average of elements in array is "<<findAverage(arr,size)<<endl; //printing average
  
}

Output: