LeetCode solutions

3353. Existence of a Substring in a String and Its Reverse

My accepted Python solution to LeetCode problem 3353, Existence of a Substring in a String and Its Reverse, running in 0ms.

Difficulty: Easy
Python
Runtime 0ms
Memory 17.4MB

By Pranay Mahendrakar
Updated 20 Aug 2026

Read the problem on LeetCode View on GitHub

The problem statement is LeetCode’s and stays on their site. What follows is my accepted solution.

Python

Accepted on LeetCode — runtime 0ms, memory 17.4MB, accepted 2026-01-02.

python

class Solution:
    def isSubstringPresent(self, s: str) -> bool:
        rev = s[::-1]
        for i in range(len(s) - 1):
            if s[i:i+2] in rev:
                return True
        return False

Source