Question
// This program demonstrates a Binary Search //PLACE YOUR NAME HERE #include using namespace std; int binarySearch(int [], int, int); // function prototype const int
// This program demonstrates a Binary Search
//PLACE YOUR NAME HERE
#include
using namespace std;
int binarySearch(int [], int, int); // function prototype
const int SIZE = 16;
int main()
{
int found, value;
int array[] = {34,19,19,18,17,13,12,12,12,11,9,5,3,2,2,0}; // array to be searched
cout << "Enter an integer to search for:" << endl;
cin >> value;
found = binarySearch(array, SIZE, value); //function call to perform the binary search
//on array looking for an occurrence of value
if (found == -1)
cout << "The value " << value << " is not in the list" << endl;
else
{
cout << "The value " << value << " is in position number "
<< found + 1 << " of the list" << endl;
}
return 0;
}
int binarySearch(int array[],int numElems,int value) //function heading
{
int first = 0; // First element of list
int last = numElems - 1; // last element of the list
int middle; 0 // variable containing the current
// middle value of the list
while (first <= last)
{
middle = first + (last - first) / 2;
if (array[middle] == value)
return middle; // if value is in the middle, we are done
else if (array[middle] last = middle - 1; // toss out the second remaining half of // the array and search the first else first = middle + 1; // toss out the first remaining half of // the array and search the second } return -1; // indicates that value is not in the array } The middle variable is defined as an integer. The program contains an assignment middle = (first + (last-first) /2). Is the right side necessarily an integer in memory? Explain how the medium is determined. How does this line of code affect the logic of the program? What will be the result of the program if values 19 and 12 are sought? 2. You will have an attempt to send the activity successfully. 3.The value of the activity is 10 points.
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