Digit fifth powers: Difference between revisions
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The sum was 443839</pre>
=={{header|Delphi}}==
{{works with|Delphi|6.0}}
{{libheader|SysUtils,StdCtrls}}
Optimized for speed - runs in 60 ms on a Ryzen 7.
<syntaxhighlight lang="Delphi">
const Power5: array [0..9] of integer = (0,1,32,243,1024,3125,7776,16807,32768,59049);
function SumFifthPower(N: integer): integer;
var S: string;
var I: integer;
begin
S:=IntToStr(N);
Result:=0;
for I:=1 to Length(S) do
Result:=Result+Power5[byte(S[I])-$30];
end;
procedure ShowFiftPowerDigits(Memo: TMemo);
var I,Sum: integer;
begin
Sum:=0;
for I:=2 to 354424 do
begin
if I = SumFifthPower(I) then
begin
Memo.Lines.Add(Format('%8.0n',[I*1.0]));
Sum:=Sum+I;
end;
end;
Memo.Lines.Add('========');
Memo.Lines.Add(Format('%8.0n',[Sum*1.0]));
end;
</syntaxhighlight>
{{out}}
<pre>
4,150
4,151
54,748
92,727
93,084
194,979
========
443,839
</pre>
=={{header|FOCAL}}==
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