this is a c++ question ive been working on this problem but I can\'t get anywher

Question

this is a c++ question ive been working on this problem but I can't get anywhere with it

keep in mind that i am still a beginner and its my first time working with arrays

I will give good rating if code is right

below is the function I wrote Im not sure I did it right can someone fix it and

I don't know how to test the code using assertions

#include <iostream>

using namespace std;

int search(int a[],int size, int k)
{ for (int i=0; i< size ; i++)
{
if (k==a[i])
{return i ;}

else return -1;
}
}

int main()
{
int a[6]={4,3,2,5,6,7};
int k = 0;
  
  
  
  
  
return 0;



}

Explanation / Answer

/*** c++ code to search element in an array ***********/

#include <iostream>

using namespace std;

int search(int a[],int size, int k)
{
   for ( int i = 0; i < size ; i++)
{
if( a[i] == k) // searching k at index i
   return i;
  
}

// if the program comes here without returning a value in loop
// that means we have no found k in the array so we will return -1
return -1;
}

int main()
{
   int n;
   cout <<"Give size of array: ";
   cin >> n; // enter size of array

   int a[n];
   cout<< "Enter sleemts of array: "<< endl;
for (int i = 0; i < n; ++i)
{
   cin >> a[i]; // enter elements of array
}

int k;
cout <<"Enter the element you want to search: ";
cin >> k; // enter element you want to search
  
int index = search(a,n,k); // calling the function and storing the return value in index
if(index == -1) cout<<"Element not present in array"<<endl;
else cout <<"Element present in array at index: "<<index<< endl;
  
return 0;



}

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