Rep-string: Difference between revisions
Add C# implementation
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(Add C# implementation) |
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}
</syntaxhighlight>
=={{header|C#}}==
{{trans|Java}}
<syntaxhighlight lang="C#">
using System;
public class RepString
{
static readonly string[] input = {"1001110011", "1110111011", "0010010010",
"1010101010", "1111111111", "0100101101", "0100100", "101", "11",
"00", "1", "0100101"};
public static void Main(string[] args)
{
foreach (string s in input)
Console.WriteLine($"{s} : {repString(s)}");
}
static string repString(string s)
{
int len = s.Length;
for (int part = len / 2; part > 0; part--)
{
int tail = len % part;
if (tail > 0 && !s.Substring(0, tail).Equals(s.Substring(len - tail)))
continue;
bool isRepeated = true;
for (int j = 0; j < len / part - 1; j++)
{
int a = j * part;
int b = (j + 1) * part;
int c = (j + 2) * part;
if (!s.Substring(a, part).Equals(s.Substring(b, part)))
{
isRepeated = false;
break;
}
}
if (isRepeated)
return s.Substring(0, part);
}
return "none";
}
}
</syntaxhighlight>
{{out}}
<pre>
1001110011 : 10011
1110111011 : 1110
0010010010 : 001
1010101010 : 1010
1111111111 : 11111
0100101101 : none
0100100 : 010
101 : none
11 : 1
00 : 0
1 : none
0100101 : none
</pre>
=={{header|C++}}==
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