Adapted description and testdata

README.md

@@ -1,25 +1,31 @@
 # Look-and-Say
 
 ## Goal
-Starting with a digit, count how often this digit occurs in succession.
+Given an `iteration-count` generate and output the `look-and-say` sequence.
-Then repeat the same procedure for given number of `iterations`.
+
+The sequence starts with `1`. Subsequent numbers are derived by describing the previous number in terms of consecutive digits.
+
+To generate an entry of the sequence, examine the previous entry.
+
+Read off the digits of the previous entry, counting the number of digits in groups of the same digit.
+
 In human terms this is like speaking out loud how often each digit appears consecutively.
 
+**Keep in mind:** the output becomes very long very quickly.
+
 ### Input
 `iterations` - a numeric value how often the process is repeated
 
 ### Output
-A numeric value representing a stream of occurrences and digits.
+The head of the generated sequence after iterating by the given input.
 
 ### Constraints
-1 <= `iterations` <= 10  
+ * 0 <= `iterations` <= 28
-**Start value** = 1
+ * **Start value** = 1
 
 ### Examples
-Assuming the start value is `0` (**attention:** value differs from real start value for demostraton purposes) and `iteration` is 5:  
+* for input `0` iterations, output `1`, i.e. the starting value)
-0\. iteration: `0` (reading: *one 1*)  
+* for input `1` iterations, output `11`, i.e. reading the previous entry `1` as `one 1`
-1\. iteration: `10` (reading: *two 1s*)  
+* for input `2` iterations, output `21`, i.e. reading the previous entry `11` as `two 1s`
-2\. iteration: `1110` (reading: *one 2 and one 1*)  
+* for input `3` iterations, output `1211`, i.e. reading the previous entry `21` as `one 2 one 1`
-3\. iteration: `3110` (reading: *one 1 and one two and two 1s*)  
+* for input `4` iterations, output `111221`, i.e. reading the previous entry `1211` as `one 1 one 2 two 1`
-4\. iteration: `132110` (reading: *three 1s and two 2s and one 1*)  
-5\. iteration: `1113122110`  

settings.gradle

@@ -1 +1 @@
-rootProject.name = 'run-length-encoding'
+rootProject.name = 'look-and-say'

src/main/java/Solution.java

@@ -2,10 +2,6 @@ import java.util.*;
 import java.io.*;
 import java.math.*;
 
-/**
- * Template code to help you parse the standard input 
- * according to the problem statement.
- **/
 class Solution {
 	
 	public static void main( String[] args ) {

src/test/resources/testdata.csv

@@ -4,4 +4,12 @@
 3, 1211
 4, 111221
 5, 312211
+6, 13112221
+7, 1113213211
 8, 31131211131221
+9, 13211311123113112211
+10, 11131221133112132113212221
+15, 132113213221133112132113311211131221121321131211132221123113112221131112311332111213211322211312113211
+19, 11131221131211132221232112111312111213111213211231132132211211131221131211221321123113213221123113112221131112311332211211131221131211132211121312211231131112311211232221121321132132211331121321231231121113112221121321133112132112312321123113112221121113122113121113123112112322111213211322211312113211
+25, 1113122113121113222123211211131211121311121321123113213221121113122123211211131221121311121312211213211321322112311311222113311213212322211211131221131211221321123113213221121113122113121113222112131112131221121321131211132221121321132132211331121321232221123113112221131112311322311211131122211213211331121321122112133221121113122113121113222123211211131211121311121321123113111231131122112213211321322113311213212322211231131122211311123113223112111311222112132113311213211221121332211231131122211311123113321112131221123113111231121113311211131221121321131211132221123113112211121312211231131122113221122112133221121113122113121113222123211211131211121311121321123113213221121113122113121113222113221113122113121113222112132113213221232112111312111213322112311311222113111221221113122112132113121113222112311311222113111221132221231221132221222112112322211213211321322113311213212312311211131122211213211331121321123123211231131122211211131221131112311332211213211321223112111311222112132113213221123123211231132132211231131122211311123113322112111312211312111322111213122112311311123112112322211213211321322113312211223113112221121113122113111231133221121321132132211331121321232221123123211231132132211231131122211331121321232221123113112221131112311332111213122112311311123112112322211211131221131211132221232112111312111213111213211231132132211211131221131211221321123113213221123113112221131112211322212322211231131122211322111312211312111322211213211321322113311213211331121113122122211211132213211231131122212322211331222113112211
+28, 11131221131211132221232112111312111213111213211231132132211211131221232112111312211213111213122112132113213221123113112221133112132123222112111312211312112213211231132132211211131221131211132221121311121312211213211312111322211213211321322113311213212322211231131122211311123113223112111311222112132113311213211221121332211211131221131211132221231122212213211321322112311311222113311213212322211211131221131211132221232112111312111213322112131112131221121321131211132221121321132132212321121113121112133221121321132132211331121321231231121113112221121321133112132112211213322112311311222113111231133211121312211231131122211322311311222112111312211311123113322112132113212231121113112221121321132122211322212221121123222112111312211312111322212321121113121112131112132112311321322112111312212321121113122112131112131221121321132132211231131122111213122112311311222113111221131221221321132132211331121321231231121113112221121321133112132112211213322112311311222113111231133211121312211231131122211322311311222112111312211311123113322112132113212231121113112221121321132122211322212221121123222112311311222113111231133211121312211231131112311211133112111312211213211312111322211231131122111213122112311311222112111331121113112221121113122113121113222112132113213221232112111312111213322112311311222113111221221113122112132113121113222112311311222113111221132221231221132221222112112322211211131221131211132221232112111312111213111213211231132132211211131221232112111312211213111213122112132113213221123113112221133112132123222112111312211312111322212321121113121112133221132211131221131211132221232112111312111213322112132113213221133112132113221321123113213221121113122123211211131221222112112322211231131122211311123113321112132132112211131221131211132221121321132132212321121113121112133221123113112221131112311332111213211322111213111213211231131211132211121311222113321132211221121332211213211321322113311213212312311211131122211213211331121321123123211231131122211211131221131112311332211213211321223112111311222112132113213221123123211231132132211231131122211311123113322112111312211312111322111213122112311311123112112322211213211321322113312211223113112221121113122113111231133221121321132132211331121321232221123123211231132132211231131122211331121321232221123113112221131112311332111213122112311311123112112322211211131221131211132221232112111312211322111312211213211312111322211231131122111213122112311311221132211221121332211213211321322113311213212312311211131211131221223113112221131112311332211211131221131211132211121312211231131112311211232221121321132132211331121321231231121113112221121321133112132112211213322112312321123113213221123113112221133112132123222112311311222113111231132231121113112221121321133112132112211213322112311311222113111231133211121312211231131112311211133112111312211213211312111322211231131122111213122112311311221132211221121332211211131221131211132221232112111312111213111213211231132132211211131221232112111312211213111213122112132113213221123113112221133112132123222112111312211312111322212311222122132113213221123113112221133112132123222112311311222113111231133211121321132211121311121321122112133221123113112221131112311332211322111312211312111322212321121113121112133221121321132132211331121321231231121113112221121321132122311211131122211211131221131211322113322112111312211322132113213221123113112221131112311311121321122112132231121113122113322113111221131221