public void test_solution_givenArray_returnsNumberOfPairs(int[] given, int expected)
        {
            var target = new NumberOfDiscIntersections();
            int actual = target.solution(given);

            Assert.AreEqual(expected, actual);
        }
        public void NumberOfDiscIntersectionsTest_01()
        {
            var solution = nr.solution(new int[] { 1, 5, 2, 1, 4, 0 });

            Assert.AreEqual(11, solution);
        }