1.0 KiB
1.0 KiB
TODO 0647. Palindromic Substrings medium
Given a string s, return the number of palindromic substrings in it.
A string is a palindrome when it reads the same backward as forward.
A substring is a contiguous sequence of characters within the string.
Example 1:
Input: s = "abc"
Output: 3
Explanation: Three palindromic strings: "a", "b", "c".Example 2:
Input: s = "aaa"
Output: 6
Explanation: Six palindromic strings: "a", "a", "a", "aa", "aa", "aaa".Constraints:
1 <= s.length <= 1000sconsists of lowercase English letters.
TODO Approach
Write your approach here.
TODO Python
class Solution:
def countSubstrings(self, s: str) -> int:TODO C++
class Solution {
public:
int countSubstrings(string s) {
}
};