gistfile1.js

    fun countSubstrings(s: String): Int {
        var c = 0
        for (i in s.indices) {
            val sb = StringBuilder()
            for (j in i until s.length) if (isPal(sb.append(s[j]).toString())) c++
        }

        return c
    }

    private fun isPal(word: String): Boolean {
        var l = 0
        var r = word.lastIndex
        while (l < r) if (word[l++] != word[r--]) return false

        return true
    }