✨ Finishing 13 elements

ScientificExpedition/double-substring.py

@@ -0,0 +1,21 @@
+def double_substring(line):
+    """
+        length of the longest substring that non-overlapping repeats more than once.
+    """
+    result = []
+    for i in range(len(line) - 1):
+        for j in range(i + 1, len(line) + 1):
+            if line[i:j] in line[j:]:
+                result.append(len(line[i:j]))
+
+    if len(result) > 0:
+        return max(result)
+    else:
+        return 0
+
+
+if __name__ == '__main__':
+    # These "asserts" using only for self-checking and not necessary for auto-testing
+    assert double_substring('aaaa') == 2, "First"
+    assert double_substring('abc') == 0, "Second"
+    assert double_substring('aghtfghkofgh') == 3, "Third"