Method countPali

python/0647-palindromic-substrings.py:10–16

(self, s, l, r)

        return res

    def countPali(self, s, l, r):
        res = 0
        while l >= 0 and r < len(s) and s[l] == s[r]:
            res += 1
            l -= 1
            r += 1
        return res