All Questions
Tagged with palindrome performance
45
questions
2
votes
3
answers
544
views
Recursive palindrome check
I'm trying to solve this which basically calls for a recursive palindrome check with some minor extra steps (Special characters and whitespace can be ignored). The test inputs' length can be 100000 ...
- 125
2
votes
3
answers
137
views
Find long palindrome multiplications in modern C++
I'm a former C# programmer, updating my rusty C++98 (perhaps I should try Rust instead) to modern C++20. My main goal is to get used to C++ standard library types and algorithms.
I chose to solve a ...
- 1,345
1
vote
1
answer
225
views
Find next biggest palindrome
I have written a program for the SPOJ PALIN problem:
A positive integer is called a palindrome if its[decimal representation is the same]from left to right and from right to left. For a given ...
- 39
3
votes
1
answer
128
views
palindrome code in C times out in program challenge?
Hello I am making a code in C to find the value of the last sequence of palindromes of a specified size (d) and I need to optimize this code as it is for an ...
3
votes
1
answer
83
views
A fast generator of palindrome dates in chronological order
02/02/2020 is a palindrome day because reading the date left-to-right or right-to-left still refers to the same calendar date. And because it doesn't
matter whether you use the DD/MM/YYYY format or ...
- 4,448
3
votes
0
answers
226
views
Longest palindrome code in C# takes time out on LeetCode
I like to request a review of the code below, which is my attempt at answering the question here on LeetCode site. The code passes 43 tests, but it times out on the next one. I copied and ran the test ...
- 103
4
votes
3
answers
2k
views
Palindrome test
This is some code that determines if a string of characters is a palindrome or not. My professor says that there is a performance issue with the program, but I can't quite put my finger on it. Can ...
- 51
10
votes
2
answers
504
views
Determining if a string can be permuted to a palindrome
I am going through Elements of Programming Interview by Aziz, Lee and Prakash one of the questions is how to determine if a string can be permuted to a palindrome. For example ...
- 203
2
votes
0
answers
213
views
Longest Palindromic Substring challenge
My code is a mix-up between dynamic programming with the HashMap and brute force with the way I reach out the results and substring. I don't know how to optimize my ...
- 21
8
votes
5
answers
12k
views
Find palindromic substrings as efficiently as possible
I've written a function to calculate all the distinct substrings of a given string, that are palindromes. The string is passed as the argument to the function. For example, the string abba is a ...
- 217
3
votes
3
answers
617
views
Check if a string is palindrome or two strings are the opposite of each other
I made a function which checks if a word is the opposite of each other (ex: word and drow) and then realized that with minor changes it could also be used to detect if a word is palindrome. They both ...
- 227
1
vote
3
answers
546
views
Checking if a string is a palindrome
This is the code for checking if a string is a palindrome. The execution time, for sample cases, is 0.40358 seconds. What must be done to increase the performance?
...
- 33
26
votes
6
answers
6k
views
Close to the metal C++ Palindrome Program
I am attempting to reinvent the wheel by writing my own palindrome checking program in C++, using only basic loops and mathematical operations. I have arrived at a solution, but was wondering if it's ...
- 371
4
votes
1
answer
3k
views
Find all sub matrices of type N*M in it which are palindromic
Today I had an interview, where I was asked to solve this question.
A \$N*M\$ matrix is called a palindromic matrix, if for all of its rows and columns, elements read from left to right in a row are ...
- 1,291
8
votes
3
answers
2k
views
Leetcode 125. Valid Palindrome (better performance?)
Problem statement
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.
For example,
"A man, a plan, a canal: Panama" is a ...
- 2,396