public void FindOrderTest3()
{
CourseSchedule courseSchedule = new CourseSchedule();
int[][] pre = new int[0][];
//pre[0] = new int[0];
int[] res = courseSchedule.FindOrder(1, pre);
Assert.IsTrue(res[0] == 0);
}
public void FindOrderTest()
{
CourseSchedule courseSchedule = new CourseSchedule();
int[][] pre = new int[1][];
pre[0] = new int[] { 1, 0 };
int[] res = courseSchedule.FindOrder(2, pre);
Assert.IsTrue(res[0] == 0);
Assert.IsTrue(res[1] == 1);
}
public void FindOrderTest4()
{
CourseSchedule courseSchedule = new CourseSchedule();
int[][] pre = new int[2][];
pre[0] = new int[] { 0, 1 };
pre[1] = new int[] { 1, 0 };
int[] res = courseSchedule.FindOrder(2, pre);
Assert.IsTrue(res.Length == 0);
}
public void TestFindOrder()
{
Assert.AreEqual(new int[] { 0, 1, 2, 3 }, CourseSchedule.FindOrder(4, new int[, ] {
{ 1, 0 }, { 2, 0 }, { 3, 1 }, { 3, 2 }
})); // can have multiple solution
Assert.AreEqual(new int[] { 0, 1, 2 }, CourseSchedule.FindOrder(3, new int[, ] {
{ 1, 0 }, { 2, 0 }, { 2, 1 }
}));
Assert.AreEqual(new int[] { }, CourseSchedule.FindOrder(3, new int[, ] {
{ 1, 0 }, { 0, 1 }
}));
}
public void TestOrder()
{
//无环
var arr = new int[, ]
{
{ 1, 0 },
{ 2, 0 },
{ 3, 1 },
{ 5, 2 },
{ 4, 3 },
{ 3, 6 },
};
var r = CourseSchedule.FindOrder(7, arr);
//上面这图里按照我写的算法是分层次的 06最外层，12第二层，35第三层，4最后，同一层次里数组里先出现结果里也先出现
var s = string.Join("", r);
Assert.AreEqual(s.Substring(0, 2), "06");
Assert.AreEqual(s.Substring(2, 2), "12");
Assert.AreEqual(s.Substring(4, 2), "35");
Assert.AreEqual(s.Substring(6, 1), "4");
//无环
arr = new int[, ]
{
{ 1, 0 }, { 2, 0 }, { 3, 1 }, { 3, 2 }
};
r = CourseSchedule.FindOrder(4, arr);
//上面这图里按照我写的算法是分层次的 06最外层，12第二层，35第三层，4最后，同一层次里数组里先出现结果里也先出现
s = string.Join("", r);
Assert.AreEqual(s.Substring(0, 1), "0");
Assert.AreEqual(s.Substring(1, 2), "12");
Assert.AreEqual(s.Substring(3, 1), "3");
//有环
arr = new int[, ]
{
{ 1, 0 },
{ 2, 0 },
{ 3, 1 },
{ 5, 2 },
{ 4, 3 },
{ 3, 6 },
{ 6, 4 },
};
r = CourseSchedule.FindOrder(7, arr);
Assert.AreEqual(r.Length, 0);
}
public void FindOrderTest2()
{
CourseSchedule courseSchedule = new CourseSchedule();
int[][] pre = new int[4][];
pre[0] = new int[] { 1, 0 };
pre[1] = new int[] { 2, 0 };
pre[2] = new int[] { 3, 1 };
pre[3] = new int[] { 3, 2 };
int[] res = courseSchedule.FindOrder(4, pre);
Assert.IsTrue(res[0] == 0);
Assert.IsTrue(res[1] == 1 || res[1] == 2);
Assert.IsTrue(res[2] == 1 || res[2] == 2);
Assert.IsTrue(res[3] == 3);
}