Update Longest Common Prefix

cyber-dojo · Nov 10, 2022 · dbb2b1b · dbb2b1b
1 parent 46cf928
commit dbb2b1b
Showing 1 changed file with 11 additions and 10 deletions.
diff --git a/start-points/Longest_Common_Prefix/readme.txt b/start-points/Longest_Common_Prefix/readme.txt
@@ -1,27 +1,28 @@
 
-You task is to find the longest common prefix from a set of strings.
+You task is to find the length of the longest common prefix from a set of strings.
 There are two variations:
 
 Variation 1.
-Find the longest common prefix across ALL strings in the set.
+Find the length of longest common prefix across ALL strings in the set.
 For example:
 
-     { "new", "next" } ==> "ne"
+     { "new", "next" } ==> 2
 
-     { "newest", "new", "newly" } ==> "new"
+     { "newest", "new", "newly" } ==> 3
 
-     { "pond", "pod", "new", "newest" } ==> ""
+     { "pond", "pod", "new", "newest" } ==> 0
 
 
 Variation 2.
-Find the longest common prefix across ANY two or more strings in the set.
+Find the length of longest common prefix across ANY two or more strings in the set.
 For example:
 
-     { "pond", "newest" } ==> ""
+     { "pond", "newest" } ==> 0
 
-     { "new", "night" } ==> "n"
+     { "new", "night" } ==> 1
 
-     { "newest", "new", "newly" } ==> "new"
+     { "newest", "new", "newly" } ==> 3
+
+     { "pond", "pod", "new", "newest" } ==> 3
 
-     { "pond", "pod", "new", "newest" } ==> "new"