73 lines
1.2 KiB
Plaintext
73 lines
1.2 KiB
Plaintext
program AveragesMode;
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{$APPTYPE CONSOLE}
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uses
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System.SysUtils,
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System.Generics.Collections,
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System.Generics.Defaults;
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type
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TCounts = TDictionary<Integer, Integer>;
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TPair = record
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value, count: Integer;
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constructor Create(value, count: Integer);
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end;
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TPairs = TArray<TPair>;
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var
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dict: TCounts;
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Pairs: TPairs;
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list: TArray<Integer>;
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i, key, max: Integer;
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p: TPair;
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{ TPair }
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constructor TPair.Create(value, count: Integer);
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begin
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self.value := value;
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self.count := count;
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end;
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function SortByCount(const left, right: TPair): Integer;
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begin
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Result := right.count - left.count;
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end;
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begin
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list := [1, 3, 6, 6, 6, 6, 7, 7, 12, 12, 12, 12, 17];
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dict := TCounts.Create;
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for i in list do
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begin
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if dict.ContainsKey(i) then
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dict[i] := dict[i] + 1
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else
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begin
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dict.Add(i, 1);
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end;
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end;
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SetLength(Pairs, dict.Count);
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i := 0;
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for key in dict.Keys do
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begin
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Pairs[i] := TPair.Create(key, dict[key]);
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inc(i);
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end;
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TArray.Sort<TPair>(Pairs, TComparer<TPair>.Construct(SortByCount));
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Writeln('Modes:');
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max := Pairs[0].count;
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for p in Pairs do
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if p.count = max then
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Writeln(' Value: ', p.value, ', Count: ', p.count);
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dict.Free;
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Readln;
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end.
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