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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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25
Task/Inverted-index/C-sharp/inverted-index-1.cs Normal file
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
class InvertedIndex
{
static Dictionary<TItem, IEnumerable<TKey>> Invert<TKey, TItem>(Dictionary<TKey, IEnumerable<TItem>> dictionary)
{
return dictionary
.SelectMany(keyValuePair => keyValuePair.Value.Select(item => new KeyValuePair<TItem, TKey>(item, keyValuePair.Key)))
.GroupBy(keyValuePair => keyValuePair.Key)
.ToDictionary(group => group.Key, group => group.Select(keyValuePair => keyValuePair.Value));
}
static void Main()
{
Console.Write("files: ");
var files = Console.ReadLine();
Console.Write("find: ");
var find = Console.ReadLine();
var dictionary = files.Split().ToDictionary(file => file, file => File.ReadAllText(file).Split().AsEnumerable());
Console.WriteLine("{0} found in: {1}", find, string.Join(" ", Invert(dictionary)[find]));
}
}

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Task/Inverted-index/C-sharp/inverted-index-2.cs Normal file
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files: file1 file2 file3
find: what
what found in: file1 file2