Problem title
Difficulty
Avg time to solve

Minimum Path Sum
Moderate
15 mins
Find Duplicates In Array
Easy
15 mins
Palindromic Substrings
Moderate
20 mins
Find All Triplets With Zero Sum
Moderate
30 mins
Size of Largest BST in Binary Tree
Easy
10 mins
Redundant Brackets
Easy
15 mins
Minimize The Difference
Easy
20 mins
Check Bipartite Graph
Moderate
50 mins
Minimum Cost To Make String Valid
Moderate
20 mins
N Stacks In An Array
Hard
20 mins
41

Palindromic Substrings

Difficulty: MEDIUM
Contributed By
Avg. time to solve
20 min
Success Rate
80%

Problem Statement

You have been given a string STR. Your task is to find the total number of palindromic substrings of STR.

Example :
``````If the input string is "abbc", then all the possible palindromic substrings would be: ["a", "b", "b", c", "bb"] and hence, the output will be 5 since we have 5 substrings in total which form a palindrome.
``````
Note :
``````A string is said to be a 'Palindrome' if it is read the same forwards and backwards.
For example, “abba” is a palindrome, but “abbc” is not.

A 'Substring' is a contiguous sequence of characters within a string.
For example, "a", "b", "c", "ab", "bc", "abc" are substrings of "abc".
``````
Input format :
``````The first line contains an integer 't' which denotes the number of test cases or queries to be run. Then the test cases follow.

The first and only line of each test case contains the string STR for which you have to count the number of palindromic substrings.
``````
Output Format :
``````For each test case, return the total number of palindromic substrings possible.

Output for each test case will be printed in a separate line.
``````
Note
``````You are not required to print anything, it has already been taken care of. Just implement the function.
``````
Constraints :
``````1 <= t <= 100
0 <= N <= 1000

Where 't' is the number of test cases, 'N' is the length of the given string.
Time Limit: 1 sec.
``````
Sample Input 1 :
``````1
abc
``````
Sample Output 1 :
``````3
``````
Explanation For Sample Output 1:
``````All the substrings of the given string are "a", "b", "c", "ab", "bc", "abc".
The plaindromics substrings are "a", "b", "c". So the output will be 3.
``````
Sample Input 2 :
``````1
aaa
``````
Sample Output 2 :
``````6
``````
Console