8fbd7fdfc3
faststrings EmptyCollection и преобразование ее в List, Dictionary t: (real,real) := (1,2)
14 lines
346 B
ObjectPascal
14 lines
346 B
ObjectPascal
// 6.0 sec PascalABC.NET vs 11.4 sec Python
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begin
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var mx := 0;
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for var n := 4 to 9999 do
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begin
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var s: faststring := '4' + '1' * n;
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while ('411' in s) or ('1111' in s) do
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s.Replace('411', '14', 1).Replace('1111', '1', 1);
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mx := max(mx, s.ToString.Sum(d -> d.todigit));
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end;
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print(mx, Milliseconds / 1000);
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end. |