C++ CODE TO FIND THE NUMBER BY WHICH A SORTED ARRAY HAS BEEN ROTATED

#include <iostream>
using namespace std;

int arrayRotateCheck(int *input, int size)
{
    int min = input[0], k;
    if(size != 0){
    for (int i=0; i<size; i++)
    {
        if (min > input[i])
        {
            min = input[i];
            k = i;
        }
    }
    return k;
}
    else
        return 0;
}

int main()
{
	int t;
	cin >> t;
	while (t--)
	{
		int size;
		cin >> size;
		int *input = new int[size];
		for (int i = 0; i < size; i++)
		{
			cin >> input[i];
		}
		cout << arrayRotateCheck(input, size) << endl;
		delete[] input;
	}
	return 0;
}