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  1. Practice
  2. Data Structures
  3. Arrays
  4. Sparse Arrays
  5. Discussions

Sparse Arrays

  • iank2 + 1 comment

    Agree. not sure what this "medium" difficulty quesion is aiming at.

    Shorter description: Given an array of strings FOO and a an array of strings BAR find the count of string in BAR that occurs in FOO.

    C#. Linq is your friend.

    var results = new int[queries.Length];

            var index = 0;

        foreach (string s in queries)
        {
             results[index++] = strings.Where(i => i == s).Count();
        }

        return results;

    • niwaNoBushi + 0 comments
      public static int[] matchingStrings(string[] strings, string[] queries)
            => queries.Select(query => strings.Count(text => text == query))
                      .ToArray();