Update 0005-longest-palindromic-substring.kt

Code cleanup

Author: a93a

Diff for: kotlin/0005-longest-palindromic-substring.kt

@@ -1,37 +1,32 @@
 class Solution {
     fun longestPalindrome(s: String): String {
-        
-        var start = 0 // start of longest palindrom
+        var start = 0
         var maxL = 0
 
-        for(i in 0 until s.length){
-            
-            //odd length palindrom
+        for (i in 0 until s.length) {
             var l = i
             var r = i
-            while(l >= 0 && r < s.length && s[l] == s[r]){
-                if(r - l + 1 > maxL) {//index to size +1
+            while (l >= 0 && r < s.length && s[l] == s[r]) {
+                if (r - l + 1 > maxL) {
                     start = l
                     maxL = (r - l + 1)
                 } 
                 l--
                 r++
             }
 
-            //even length palindrom
             l = i
             r = i + 1
-            while(l >= 0 && r < s.length && s[l] == s[r]){
-                if(r - l + 1 > maxL) {//index to size +1
+            while (l >= 0 && r < s.length && s[l] == s[r]) {
+                if (r - l + 1 > maxL) {
                     start = l
                     maxL = (r - l + 1)
                 } 
                 l--
                 r++
-            }
-            
+            }          
         }
 
-        return s.substring(start, start+maxL)
+        return s.substring(start, start + maxL)
     }
 }