public void BinarySearchTiny()
{
int[] expected = { 5, -1, 0, -1, 4, 5, 15, 14, 1, 0, 9, 13, -1, 10, 15, 13, 13, 12 };
int[] whiteList;
// read the integers from a file and sort them
using (In inWhiteList = new In("Algs4-Data\\TinyW.txt"))
{
whiteList = inWhiteList.ReadAllInts();
}
Array.Sort(whiteList);
// read integer keys from a file; search in whitelist
using (In inKeys = new In("Algs4-Data\\TinyT.txt"))
{
int expectedIndex = 0;
while (!inKeys.IsEmpty() && expected.Length > expectedIndex)
{
int key = inKeys.ReadInt();
int position = BinarySearch.Rank(key, whiteList);
Assert.AreEqual(expected[expectedIndex++], position);
}
}
}
public void Run()
{
Console.WriteLine("Choose file:"); // Prompt
Console.WriteLine("1 - tinyT.txt"); // Prompt
Console.WriteLine("2 - tinyW.txt"); // Prompt
Console.WriteLine("3 - largeT.txt"); // Prompt
Console.WriteLine("4 - largeW.txt"); // Prompt
Console.WriteLine("or quit"); // Prompt
var fileNumber = Console.ReadLine();
var fieName = string.Empty;
switch (fileNumber)
{
case "1":
fieName = "tinyT.txt";
break;
case "2":
fieName = "tinyW.txt";
break;
case "3":
fieName = "largeT.txt";
break;
case "4":
fieName = "largeW.txt";
break;
case "quit":
return;
default:
return;
}
var @in = new In($"Files\\BinarySearch\\{fieName}");
@in.ReadAllInts();
}
public void Run()
{
Console.WriteLine("Choose file:"); // Prompt
Console.WriteLine("1 - tinyT.txt"); // Prompt
Console.WriteLine("2 - tinyW.txt"); // Prompt
Console.WriteLine("3 - largeT.txt"); // Prompt
Console.WriteLine("4 - largeW.txt"); // Prompt
Console.WriteLine("or quit"); // Prompt
var fileNumber = Console.ReadLine();
var fieName = string.Empty;
switch (fileNumber)
{
case "1":
fieName = "tinyT.txt";
break;
case "2":
fieName = "tinyW.txt";
break;
case "3":
fieName = "largeT.txt";
break;
case "4":
fieName = "largeW.txt";
break;
case "quit":
return;
default:
return;
}
var @in = new In(string.Format("Files\\BinarySearch\\{0}", fieName));
var whitelist = @in.ReadAllInts();
// sort the array
Array.Sort(whitelist);
// Loop indefinitely
// read integer key from standard input; print if not in whitelist
while (true)
{
Console.WriteLine("Enter input:"); // Prompt
var line = Console.ReadLine(); // Get string from user
if (string.IsNullOrWhiteSpace(line))
{
Console.WriteLine("input is empty");
continue;
}
if (line == "quit") // Check quit
{
break;
}
int key;
try
{
key = Int32.Parse(line);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
continue;
}
var rank = Core.BinarySearch.BinarySearch.Rank(key, whitelist);
Console.WriteLine("key: {0}, rank: {1}", key, rank);
}
}
