_{[0347 - Top K Frequent Elements](https://leetcode.com/problems/top-k-frequent-elements/)} | _{<div align='center'>[✔️](c%2F0347-top-k-frequent-elements.c)</div>} | _{<div align='center'>[✔️](cpp%2F0347-top-k-frequent-elements.cpp)</div>} | _{<div align='center'>[✔️](csharp%2F0347-top-k-frequent-elements.cs)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](go%2F0347-top-k-frequent-elements.go)</div>} | _{<div align='center'>[✔️](java%2F0347-top-k-frequent-elements.java)</div>} | _{<div align='center'>[✔️](javascript%2F0347-top-k-frequent-elements.js)</div>} | _{<div align='center'>[✔️](kotlin%2F0347-top-k-frequent-elements.kt)</div>} | _{<div align='center'>[✔️](python%2F0347-top-k-frequent-elements.py)</div>} | _{<div align='center'>[✔️](ruby%2F0347-top-k-frequent-elements.rb)</div>} | _{<div align='center'>[✔️](rust%2F0347-top-k-frequent-elements.rs)</div>} | _{<div align='center'>[✔️](scala%2F0347-top-k-frequent-elements.scala)</div>} | _{<div align='center'>[✔️](swift%2F0347-top-k-frequent-elements.swift)</div>} | _{<div align='center'>[✔️](typescript%2F0347-top-k-frequent-elements.ts)</div>}

_{[0238 - Product of Array Except Self](https://leetcode.com/problems/product-of-array-except-self/)} | _{<div align='center'>[✔️](c%2F0238-product-of-array-except-self.c)</div>} | _{<div align='center'>[✔️](cpp%2F0238-product-of-array-except-self.cpp)</div>} | _{<div align='center'>[✔️](csharp%2F0238-product-of-array-except-self.cs)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](go%2F0238-product-of-array-except-self.go)</div>} | _{<div align='center'>[✔️](java%2F0238-product-of-array-except-self.java)</div>} | _{<div align='center'>[✔️](javascript%2F0238-product-of-array-except-self.js)</div>} | _{<div align='center'>[✔️](kotlin%2F0238-product-of-array-except-self.kt)</div>} | _{<div align='center'>[✔️](python%2F0238-product-of-array-except-self.py)</div>} | _{<div align='center'>[✔️](ruby%2F0238-product-of-array-except-self.rb)</div>} | _{<div align='center'>[✔️](rust%2F0238-product-of-array-except-self.rs)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](swift%2F0238-product-of-array-except-self.swift)</div>} | _{<div align='center'>[✔️](typescript%2F0238-product-of-array-except-self.ts)</div>}

_{[0036 - Valid Sudoku](https://leetcode.com/problems/valid-sudoku/)} | _{<div align='center'>[✔️](c%2F0036-valid-sudoku.c)</div>} | _{<div align='center'>[✔️](cpp%2F0036-valid-sudoku.cpp)</div>} | _{<div align='center'>[✔️](csharp%2F0036-valid-sudoku.cs)</div>} | _{<div align='center'>[✔️](dart%2F0036-valid-sudoku.dart)</div>} | _{<div align='center'>[✔️](go%2F0036-valid-sudoku.go)</div>} | _{<div align='center'>[✔️](java%2F0036-valid-sudoku.java)</div>} | _{<div align='center'>[✔️](javascript%2F0036-valid-sudoku.js)</div>} | _{<div align='center'>[✔️](kotlin%2F0036-valid-sudoku.kt)</div>} | _{<div align='center'>[✔️](python%2F0036-valid-sudoku.py)</div>} | _{<div align='center'>[✔️](ruby%2F0036-valid-sudoku.rb)</div>} | _{<div align='center'>[✔️](rust%2F0036-valid-sudoku.rs)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](typescript%2F0036-valid-sudoku.ts)</div>}

_{[0271 - Encode and Decode Strings](https://leetcode.com/problems/encode-and-decode-strings/)} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](cpp%2F0271-encode-and-decode-strings.cpp)</div>} | _{<div align='center'>[✔️](csharp%2F0271-encode-and-decode-strings.cs)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](go%2F0271-encode-and-decode-strings.go)</div>} | _{<div align='center'>[✔️](java%2F0271-encode-and-decode-strings.java)</div>} | _{<div align='center'>[✔️](javascript%2F0271-encode-and-decode-strings.js)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](python%2F0271-encode-and-decode-strings.py)</div>} | _{<div align='center'>[✔️](ruby%2F0271-encode-and-decode-strings.rb)</div>} | _{<div align='center'>[✔️](rust%2F0271-encode-and-decode-strings.rs)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](swift%2F0271-encode-and-decode-strings.swift)</div>} | _{<div align='center'>[✔️](typescript%2F0271-encode-and-decode-strings.ts)</div>}

_{[0271 - Encode and Decode Strings](https://leetcode.com/problems/encode-and-decode-strings/)} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](cpp%2F0271-encode-and-decode-strings.cpp)</div>} | _{<div align='center'>[✔️](csharp%2F0271-encode-and-decode-strings.cs)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](go%2F0271-encode-and-decode-strings.go)</div>} | _{<div align='center'>[✔️](java%2F0271-encode-and-decode-strings.java)</div>} | _{<div align='center'>[✔️](javascript%2F0271-encode-and-decode-strings.js)</div>} | _{<div align='center'>[✔️](kotlin%2F0271-encode-and-decode-strings.kt)</div>} | _{<div align='center'>[✔️](python%2F0271-encode-and-decode-strings.py)</div>} | _{<div align='center'>[✔️](ruby%2F0271-encode-and-decode-strings.rb)</div>} | _{<div align='center'>[✔️](rust%2F0271-encode-and-decode-strings.rs)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](swift%2F0271-encode-and-decode-strings.swift)</div>} | _{<div align='center'>[✔️](typescript%2F0271-encode-and-decode-strings.ts)</div>}

_{[0128 - Longest Consecutive Sequence](https://leetcode.com/problems/longest-consecutive-sequence/)} | _{<div align='center'>[✔️](c%2F0128-longest-consecutive-sequence.c)</div>} | _{<div align='center'>[✔️](cpp%2F0128-longest-consecutive-sequence.cpp)</div>} | _{<div align='center'>[✔️](csharp%2F0128-longest-consecutive-sequence.cs)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](go%2F0128-longest-consecutive-sequence.go)</div>} | _{<div align='center'>[✔️](java%2F0128-longest-consecutive-sequence.java)</div>} | _{<div align='center'>[✔️](javascript%2F0128-longest-consecutive-sequence.js)</div>} | _{<div align='center'>[✔️](kotlin%2F0128-longest-consecutive-sequence.kt)</div>} | _{<div align='center'>[✔️](python%2F0128-longest-consecutive-sequence.py)</div>} | _{<div align='center'>[✔️](ruby%2F0128-longest-consecutive-sequence.rb)</div>} | _{<div align='center'>[✔️](rust%2F0128-longest-consecutive-sequence.rs)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](swift%2F0128-longest-consecutive-sequence.swift)</div>} | _{<div align='center'>[✔️](typescript%2F0128-longest-consecutive-sequence.ts)</div>}

_{[0075 - Sort Colors](https://leetcode.com/problems/sort-colors/)} | _{<div align='center'>[✔️](c%2F0075-sort-colors.c)</div>} | _{<div align='center'>[✔️](cpp%2F0075-Sort-colors.cpp)</div>} | _{<div align='center'>[✔️](csharp%2F0075-sort-colors.cs)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](go%2F0075-sort-colors.go)</div>} | _{<div align='center'>[✔️](java%2F0075-sort-colors.java)</div>} | _{<div align='center'>[✔️](javascript%2F0075-sort-colors.js)</div>} | _{<div align='center'>[✔️](kotlin%2F0075-sort-colors.kt)</div>} | _{<div align='center'>[✔️](python%2F0075-sort-colors.py)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](rust%2F0075-sort-colors.rs)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](swift%2F0075-sort-colors.swift)</div>} | _{<div align='center'>[✔️](typescript%2F0075-sort-colors.ts)</div>}

_{[0535 - Encode and Decode TinyURL](https://leetcode.com/problems/encode-and-decode-tinyurl/)} | _{<div align='center'>[✔️](c%2F0535-encode-and-decode-tinyurl.c)</div>} | _{<div align='center'>[✔️](cpp%2F0535-encode-and-decode-tinyurl.cpp)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](go%2F0535-encode-and-decode-tinyurl.go)</div>} | _{<div align='center'>[✔️](java%2F0535-encode-and-decode-tinyurl.java)</div>} | _{<div align='center'>[✔️](javascript%2F0535-encode-and-decode-tinyurl.js)</div>} | _{<div align='center'>[✔️](kotlin%2F0535-encode-and-decode-tinyurl.kt)</div>} | _{<div align='center'>[✔️](python%2F0535-encode-and-decode-tinyurl.py)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](rust%2F0535-encode-and-decode-tinyURL.rs)</div>} | _{<div align='center'>❌</div>} | _{<div align='center'>[✔️](swift%2F0535-Encode-and-Decode-TinyURL.Swift)</div>} | _{<div align='center'>[✔️](typescript%2F0535-encode-and-decode-tinyurl.ts)</div>}

classCodec {

funencode(strs:List<String>):String {

val stringBuilder=StringBuilder()

for (stringin strs) {

for (charin string) {

stringBuilder.append(char.toInt())// char.code in newer version's of Kotlin

stringBuilder.append(CHAR_DELIMITER)

}

stringBuilder.append(STRING_DELIMITER)

}

return stringBuilder.toString()

}

fundecode(s:String):List<String> {

val stringBuilder=StringBuilder()

val resultantList= mutableListOf<String>()

var i=0

while (iin s.indices) {

while (s[i]!=STRING_DELIMITER) {

var charIntegerValue=""

while (s[i]!=CHAR_DELIMITER) {

charIntegerValue+= s[i]

i++

}

stringBuilder.append(charIntegerValue.toInt().toChar())

i++

}

resultantList.add(stringBuilder.toString())

stringBuilder.clear()

i++

}

return resultantList

}

companionobject {

}

}