//---------------------------------------------------------------------------------------------------------------------------------------
//4.Worst-fit decreasing algorithm using Priority queue. --------------------------------------------------------------------------------
//Button: Worst-fit decreasing algorithm using Priority queue.
/*Overall Complexity:First for loop(𝞱(N))+Max(Merge Sort(O(N log N)),Second for loop(𝞱(N log M))+traverse(𝞱(N+M))+traverse_copy(𝞱(N+M)))
* =𝞱(N)+Max(N log N,N log M)=O(N log N) */
private void button6_Click(object sender, EventArgs e)
{
Stopwatch StpW = Stopwatch.StartNew();
folder_name = "[2] WorstFit Decreasing";
Names_Durations list = new Names_Durations();
for (int i = 0; i < durations.Count; i++)//First for loop:𝞱(N)
{
list.name.Add(names[i]);
list.duration.Add(durations[i]);
}
Names_Durations NewList = MergeSort(list);//O(N log N)
int count = 2;
double duration_of_each_file = double.Parse(textBox1.Text);
Node node = new Node(duration_of_each_file - NewList.duration[0], "F1");
node.list_names.Add(NewList.name[0]);
node.list_durations.Add(NewList.duration[0]);
max_binary_heap h = new max_binary_heap(node);
for (int i = 1; i < NewList.duration.Count; i++) //Overall Complexity of the Second for loop:𝞱(N log M),Number of iteration = N
{
if (h.root.total_remaining_time >= NewList.duration[i]) //Overall Complexity:𝞱(log M)
{
h.root.list_names.Add(NewList.name[i]);
h.root.list_durations.Add(NewList.duration[i]);
h.root.total_remaining_time -= NewList.duration[i];
h.max_heapify1(h.root);//𝞱(log M)
}
else//Overall Complexity:𝞱(log M)
{
node = new Node(duration_of_each_file - NewList.duration[i], "F" + count.ToString());
node.list_names.Add(NewList.name[i]);
node.list_durations.Add(NewList.duration[i]);
count++;
h.insert(node);//𝞱(log M)
}
}
// h.traverse(double.Parse(textBox1.Text));//𝞱(N+M)
StpW.Stop();
MessageBox.Show(StpW.Elapsed.ToString());
// h.traverse_Copy(double.Parse(textBox1.Text));//𝞱(N+M)
MessageBox.Show("Done !");
}
//Button: Worst-fit algorithm using Priority queue.
//Overall Complexity: for loop(O(N log M))+traverse(𝞱(N+M))+traverse_copy(𝞱(N+M)) = O(N log M).
private void button5_Click(object sender, EventArgs e)
{
Stopwatch StpW = Stopwatch.StartNew();
folder_name = "[1] WorstFit";
int count = 2;
double duration_of_each_file = double.Parse(textBox1.Text);
Node node = new Node(duration_of_each_file - durations[0], "F1");
node.list_names.Add(names[0]);
node.list_durations.Add(durations[0]);
max_binary_heap h = new max_binary_heap(node);
for (int i = 1; i < durations.Count(); i++) //Overall Complexity:O(N log M),Number of iteration=N
{
if (h.root.total_remaining_time >= durations[i]) //Overall Complexity:O(log M)
{
h.root.list_names.Add(names[i]);
h.root.list_durations.Add(durations[i]);
h.root.total_remaining_time -= durations[i];
h.max_heapify1(h.root);//O(log M)
}
else//Overall Complexity:O(log M)
{
node = new Node(duration_of_each_file - durations[i], "F" + count.ToString());
node.list_names.Add(names[i]);
node.list_durations.Add(durations[i]);
count++;
h.insert(node);//O(log M)
}
}
h.traverse(double.Parse(textBox1.Text));//𝞱(N+M)
StpW.Stop();
MessageBox.Show(StpW.Elapsed.ToString());
h.traverse_Copy(double.Parse(textBox1.Text));//𝞱(N+M)
MessageBox.Show("Done !");
}