Gemini Pro 2.5 0506 Solution to OMID Challenge 210

gistfile1.txt

let
    Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
    ChangedType = Table.TransformColumnTypes(Source, {{"Text", type text}}),
    AddedIndex = Table.AddIndexColumn(ChangedType, "OriginalIndex", 0, 1),
    AddedRevisedText = Table.AddColumn(AddedIndex, "Revised Text", each [Text]),
    SolutionIterations = List.Generate(
        () => [CurrentTable = AddedRevisedText, Pass = 0],
        each
            let
                AllChars = List.Combine(List.Transform([CurrentTable][Revised Text], each Text.ToList(_))),
                Counts = Table.Group(Table.FromList(AllChars, null, {"Char"}), {"Char"}, {{"Count", Table.RowCount, type number}}),
                MaxCount = if Table.IsEmpty(Counts) then 0 else List.Max(Counts[Count])
            in
                MaxCount > 1 and [Pass] < 20,
        each
            let
                CurrentTable = [CurrentTable],
                AllChars = List.Combine(List.Transform(CurrentTable[Revised Text], each Text.ToList(_))),
                Counts = Table.Group(Table.FromList(AllChars, null, {"Char"}), {"Char"}, {{"Count", Table.RowCount, type number}}),
                DuplicatesList = List.Sort(Table.SelectRows(Counts, each [Count] > 1)[Char]),
                CharToFix = DuplicatesList{0},
                RowsWithChar = Table.SelectRows(CurrentTable, each Text.Contains([Revised Text], CharToFix)),
                LastRowIndex = List.Max(RowsWithChar[OriginalIndex]),
                TextToChange = Table.SelectRows(CurrentTable, each [OriginalIndex] = LastRowIndex){0}[Revised Text],
                Position = Text.PositionOf(TextToChange, CharToFix),
                NewText = Text.ReplaceRange(TextToChange, Position, 1, ""),
                UpdatedListOfRows = Table.TransformRows(
                    CurrentTable,
                    (row) =>
                        if row[OriginalIndex] = LastRowIndex then
                            Record.TransformFields(row, {{"Revised Text", each NewText}})
                        else
                            row
                ),
                Result = Table.FromRecords(UpdatedListOfRows, Value.Type(CurrentTable))
            in
                [CurrentTable = Result, Pass = [Pass] + 1],
        each [CurrentTable]
    ),
    FinalTable = if List.IsEmpty(SolutionIterations) then AddedRevisedText else List.Last(SolutionIterations),
    AddedRemovedChars = Table.AddColumn(
        FinalTable,
        "Removed Chars",
        each
            let
                original = [Text],
                revised = [Revised Text]
            in
                if original = revised then null else List.Difference(Text.ToList(original), Text.ToList(revised)){0}?,
        type text
    ),
    RemovedIndexColumn = Table.RemoveColumns(AddedRemovedChars, {"OriginalIndex"}),
    ReorderedColumns = Table.ReorderColumns(RemovedIndexColumn, {"Text", "Revised Text", "Removed Chars"})
in
    ReorderedColumns