public void CountInversions_Smoke_Test()
{
var arr = new int[] { 1, 20, 6, 4, 5 };
Assert.AreEqual(5, CountInversions.Count(arr));
arr = new int[] { 2, 4, 1, 3, 5 };
Assert.AreEqual(3, CountInversions.Count(arr));
arr = new int[] { 12, 11, 13, 5, 6, 7 };
Assert.AreEqual(10, CountInversions.Count(arr));
}
public void TestCase0()
{
using (StreamReader sr = new StreamReader(@"HackerRank\CountInversions_TestCase0.txt"))
{
int t = Convert.ToInt32(sr.ReadLine());
for (int tItr = 0; tItr < t; tItr++)
{
int n = Convert.ToInt32(sr.ReadLine());
int[] arr = Array.ConvertAll(sr.ReadLine().Split(' '), arrTemp => Convert.ToInt32(arrTemp))
;
long result = CountInversions.countInversions(arr);
Console.WriteLine(result);
}
}
}