Initial data commit

Task/Rep-string/00-TASK.txt

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+Given a series of ones and zeroes in a string, define a repeated string or ''rep-string'' as a string which is created by repeating a substring of the ''first'' N characters of the string ''truncated on the right to the length of the input string, and in which the substring appears repeated at least twice in the original''.
+
+For example, the string '''10011001100''' is a rep-string as the leftmost four characters of '''1001''' are repeated three times and truncated on the right to give the original string.
+
+Note that the requirement for having the repeat occur two or more times means that the repeating unit is ''never'' longer than half the length of the input string.
+
+
+;Task:
+* Write a function/subroutine/method/... that takes a string and returns an indication of if it is a rep-string and the repeated string.   (Either the string that is repeated, or the number of repeated characters would suffice).  
+* There may be multiple sub-strings that make a string a rep-string - in that case an indication of all, or the longest, or the shortest would suffice.
+* Use the function to indicate the repeating substring if any, in the following:
+<dl><dd>
+<pre>
+1001110011
+1110111011
+0010010010
+1010101010
+1111111111
+0100101101
+0100100
+101
+11
+00
+1
+</pre>
+</dl>
+* Show your output on this page.
+
+
+{{Template:Strings}}
+<br><br>
+