Find closest number in array

int FindClosest(const int list[], int numElems, int value)

{

       int diff = abs(list[0] - value), idx{ 0 };

 

       for (int i = 0; i < numElems; i++)

       {

             if (abs(list[i] - value) < diff)

             {

                    diff = abs(list[i] - value);

                    idx = i;

             }

       }

 

       return idx;

}

 

int main()

{

       int cSize = 5;

       int iArr[cSize] = { 45, 38, 198, 36,781 };

       int target = 40;

 

       cout << "The closest number is: " << iArr[FindClosest(iArr, cSize, target)] << endl;

 

       return 0;

}