public void Given_an_list_when_swap_then_should_swaped_in_pairs()
{
var head = InitNodeHead();
var swapNodes = new SwapNodes();
var result = swapNodes.SwapNodesInPairs(head);
Assert.Equal(2, result.Val);
Assert.Equal(1, result.Next.Val);
Assert.Equal(4, result.Next.Next.Val);
Assert.Equal(3, result.Next.Next.Next.Val);
}
public void swapNodesTest0()
{
/*
* 3
* 2 3
* -1 -1
* -1 -1
* 2
* 1
* 1
*/
string[] input = new string[] { "3", "2 3", "-1 -1", "-1 -1", "2", "1", "1" };
int n = Convert.ToInt32(input[0]);
int[][] indexes = new int[n][];
for (int indexesRowItr = 0; indexesRowItr < n; indexesRowItr++)
{
indexes[indexesRowItr] = Array.ConvertAll(input[indexesRowItr + 1].Split(' '), indexesTemp => Convert.ToInt32(indexesTemp));
}
int queriesCount = Convert.ToInt32(input[n + 1]);
int[] queries = new int[queriesCount];
for (int queriesItr = 0; queriesItr < queriesCount; queriesItr++)
{
int queriesItem = Convert.ToInt32(input[queriesItr + n + 2]);
queries[queriesItr] = queriesItem;
}
int[][] result = SwapNodes.swapNodes(indexes, queries);
/*
* 3 1 2
* 2 1 3
*/
Assert.AreEqual("3 1 2", string.Join(" ", result[0]));
Assert.AreEqual("2 1 3", string.Join(" ", result[1]));
}
