Search String using binary_search() function in C++ STL

// C++ program to implement Binary
// Search in Standard Template Library (STL)
#include <algorithm>
#include <iostream>
using namespace std;

void show_array(string arr[], int arraysize)
{
    for (int i = 0; i < arraysize; i++)
        cout << arr[i] << ", ";
}

void binarySearch(string arr[], int size)
{
    cout << "\nThe array is : \n";
    show_array(arr, size);

    // Sort string array a for binary search as prerequisite
    sort(arr, arr + size);

    // Finding for "Geeks"
    cout << "\n\nSearching Result for \"Geeks\"";
    if (binary_search(arr, arr + size, "Geeks"))
        cout << "\nString Founded in array\n";
    else
        cout << "\nString not Founded in array\n";

    // Finding for string str
    string str = "Best";
    cout << "\nSearching Result for \"Best\"";
    if (binary_search(arr, arr + size, str))
        cout << "\nString Found in array";
    else
        cout << "\nString not Found in array";
}

// Driver code
int main()
{
    // Initialising string array a
    string arr[] = { "Geeks", "For", "GeeksForGeek" };

    // Find size of array arr
    int size = sizeof(arr) / sizeof(arr[0]);

    // Function call
    binarySearch(arr, size);

    return 0;
}