Determining dna health hackerrank solution. It builds the fail links for the Aho-Corasick algorithm and initializes the minimum and maximum health values. Determining dna health hackerrank solution

 
It builds the fail links for the Aho-Corasick algorithm and initializes the minimum and maximum health valuesDetermining dna health hackerrank solution  This solution was a single Trie with all the matches configured

Determine which weighted substrings in a subset of substrings can be found in a given string and calculate the string's total weight. . from collections import defaultdict. Code your solution in our custom editor or code in your own environment and upload your solution as a file. 6 of 6Hackerrank solutions 0 stars 0 forks Star Notifications Code; Issues 0; Pull requests 0; Actions; Projects 0; Security; Insights kolaSamuel/Hackerrank. Code your solution in our custom editor or code in your own environment and upload your solution as a file. Code your solution in our custom editor or code in your own environment and upload your solution as a file. Editorial. Solution-1: Using if-else statements. Strings":{"items":[{"name":"001. You are given a string containing characters A and B only. If you want solution of any specific HackerRank Challenge mention it down the comment box, we will provide the solution as soon as possible. Determining DNA Health: 50: Solution. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Algorithms/Strings/Determining DNA Health":{"items":[{"name":"Solution. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. . CHEATSHEET : ^ Matches the beginning of a line $ Matches the end of the line . Determine which weighted substrings in a subset of substrings can be found in a given string and calculate the string's total weight. The goal of this series is to keep the code as concise and efficient as possible. I have developed ML model for predicting vaccine prioritised people among group of members . HackerRank Set . 6 of 6Learning how to walk slowly to not miss important things. Journey to the Moon. Code your solution in our custom editor or code in your own environment and upload your solution as a file. py. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Strings":{"items":[{"name":"README. Find the Median – HackerRank Solution In this post, we will solve Find the Median HackerRank Solution. If the word is already a palindrome or there is no solution, return -1. Discussions. py. . Task: This challenge requires you to print Hello World! on a single line, and then print the already provided input string to stdout. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. Determine which weighted substrings in a subset of substrings can be found in a given string and calculate the string's total weight. md","contentType":"file"},{"name":"alternating. from math import inf. HackerRank Determining DNA Health Solution. A tag already exists with the provided branch name. This problem (Determining DNA Health) is a part of HackerRank Problem Solving series. Big Sorting HackerRank Solution in C, C++, Java, Python. 1 is 19 and not 23 using two different indices for b while p. Consider an array of numeric strings where each string is a positive number with anywhere from to 10^6 digits. HackerRank solutions. The total health of xyz is 0, because it contains no beneficial genes. from bisect import bisect_left as bLeft, bisect_right as bRight. In the context of the DNA Hackerrank problem, we can build a Trie to store all the substrings of the DNA string and use the Aho-Corasick algorithm to search for each nucleotide type in the DNA string. This article reviews the basic principles, applications, and recent advances of DSC in the fields of biochemistry, biophysics, and medicine. A user asks for help with a Java solution for a HackerRank problem that calculates the health of a DNA strand based on a list of genes. Use a heuristic algorithm to quickly find a solution. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Ashton and String","path":"Ashton and String","contentType":"file"},{"name":"Bead Ornaments. Hash Tables; Ransom Note. 5 years ago + 5 comments. 6 of 6HackerRank Algorithms Solutions. Name Email Website. Your task is to find the minimum number of. When I told them I devised an efficient solution they laughed. C, C++, Java, Python, C#. HackerRank Solutions in Python3. The total health of caaab is 3 + 4 + 4 + 2 + 6 = 19. Total time isO(nlog(n) + n). 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. 6 of 6Determine which weighted substrings in a subset of substrings can be found in a given string and calculate the string's total weight. 6 of 6A tag already exists with the provided branch name. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. It hosts four featured contests every month (Long Challenge, CookOff, LunchTime, and Starters) and gives away prizes and goodies to the winners as encouragement. Code your solution in our custom editor or code in your own environment and upload your solution as a file. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. Click Try Sample Test. Code your solution in our custom editor or code in your own environment and upload your solution as a file. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Discussions. Report this post Report Report. Performing this operation on an empty string results in an empty. 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. Determining DNA Health. You have function with one side of the DNA (string, except for Haskell); you need to get the other complementary side. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Ashton and String","path":"Ashton and String","contentType":"file"},{"name":"Bead Ornaments. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. breakingRecords has the following parameter (s):codechef-solutions. Ищем разработчика George Aristov’s Post George Aristov{"payload":{"allShortcutsEnabled":false,"fileTree":{"Strings":{"items":[{"name":"README. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Strings":{"items":[{"name":"README. 6 of 6My Solutions to Problem Solving - Algorithms from HackerRank - Algorithms_HackerRank/determiningDNAhealth. In this HackerRank Walking the Approximate Longest Path problem solution Jenna is playing a computer game involving a large map with N cities numbered sequentially from 1 to N that are connected by M bidirectional roads. Determine which weighted substrings in a subset of substrings can be found in a given string and calculate the string's total weight. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. Comment. In this HackerRank Knapsack problem solution we have given an array of integers and a target sum, determine the sum nearest to but not exceeding the target that can be created. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. Now we will use the re module to solve the problem. If you guys have any doubt please free to mail or. 6 of 6I don't know if someone spotted that already but it seems explanation 0 does not explain why biggest number in p. Problem. This problem (Determining DNA Health) is a part of HackerRank Problem Solving series. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. O(n) complexity where n=length of DNA string. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. Below you can find the Top 25 Hackerrank based coding questions with solutions for the Hackerrank Coding test. 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. from collections import defaultdict. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. Specify your email address and click Agree & Start to take the Sample Test. insertion-sort . Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. HackerRank Word Order problem solution. Code your solution in our custom editor or code in your own environment and upload your solution as a file. 6 of 6{"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Ashton and String","path":"Ashton and String","contentType":"file"},{"name":"Bead Ornaments. Determining DNA Health. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. Packages 0. The Algorithms Domain is further Divided into the following sub-domains. md","path":"Strings/README. The more cities the. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. Draw The Triangle 2 – HackerRank Solution. Code your solution in our custom editor or code in your own environment and upload your solution as a file. . io. Using the letter heights given, determine the area of the rectangle highlight in (mm)^2 assuming all letters are wide. Multiset package is similar to the Python set but it allows elements to occur multiple times. 6 of 6 Code your solution in our custom editor or code in your own environment and upload your solution as a file. I have developed ML model for predicting vaccine prioritised people among group of members . 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Ashton and String","path":"Ashton and String","contentType":"file"},{"name":"Bead Ornaments. Example: s="Life is Beautiful" The required output is: Hello, World! Life is beautiful Function Description: Complete the main. Apart from providing a platform for. At last, we used printf function to print the modified string. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. In this case, it will make it easier to determine which pair or pairs of elements have the smallest absolute difference between them. Determining DNA Health : WIP : 16 : Palindrome Index : Solution & Comment : 17 : Anagram : Solution & Comment : 18 : Making Anagrams : Solution & Comment : 19 : Game of Thrones - I : WIP : 20 : Two Strings : Solution & Comment : 21 : String Construction : WIP : 22. Multiset package is similar to the Python set but it allows elements to occur multiple times. Thus, we print 0 19 as our answer. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. AlgoliaNothing can be too "Hard" if you're motivated when it comes to solving problems! I solved Matrix Layer Rotation on HackerRank. 6 of 6Walkeaze offers its customer the best quality Shoulder bag for women and girls online. Many languages have built-in functions for converting numbers from decimal to binary. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"coding club","path":"coding club","contentType":"directory"},{"name":"30 review loop. Code your solution in our custom editor or code in your own environment and upload your solution as a file. go","path":"practice/algorithms/strings. Our new Data Science Questions currently assess for some of the prime skills that would need to be tested in any Data Science interview. 6 of 6#include #include #include #include #include #include #include #include #include #include using namespace std; const int MAX_N = 100005; const int K = 26; const int. You can perform two types of operations on the first string: Append a lowercase English letter to the end of the string. import java. 6 of 6 Code your solution in our custom editor or code in your own environment and upload your solution as a file. replace(/(. Code your solution in our custom editor or code in your own environment and upload your solution as a file. Program to find cycle in the graph. 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. This solution also works (in Javascript). 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. I am trying to solve Determining DNA Health challenge from Hackerrank using python. 3 has 11 reusing the same gene from index 2. The Algorithms Domain Falls under a broader Problem Solving Skill Set in HackerRank which consists of both Data Structures and Algorithms. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. In this post, we will solve Determining DNA Health HackerRank Solution. DNA is a nucleic acid present in the bodies of living things. In this post, we will solve Determining DNA Health HackerRank Solution. See the code snippets, comments, and explanations for each language. If it does, return 1. You can perform the following commands: insert i e: Insert integer at position . Delete the last character of the string. Sub Domains & Problems (+Solutions) in the Algorithms. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. Returns. Strings":{"items":[{"name":"001. Determining DNA Health. HackerRank Projects for Data Science gives hiring teams the power to identify and assess top data science candidates. It is used to determine the order of the four bases adenine (A), guanine (G), cytosine (C) and thymine (T), in a strand of DNA. They told me it would require some insane level of hackery and knowledge. )1*/g, '$1'); return s. " GitHub is where people build software. It took me a while to work it out, but I got all 50 points for solving "Determining DNA Health" on Hackerrank. January 17, 2021 by Aayush Kumar Gupta. java: complete! Practice. 6 of 6 Determine which weighted substrings in a subset of substrings can be found in a given string and calculate the string's total weight. replace(/(. Complexity: time complexity is O(N) space complexity is O(N) Execution: Equivalent to Codility Brackets. Back Submit SubmitPython Tips: Are you using this common Python construct in your code? You might want to think twice before doing so, as it could be causing hidden errors and suppressing exceptions without you. I have come up with my Algo which goes like this : To check whether it has atleast two a's, r's and k's according to the hackerrank string; Check that it contains following chars h, a, c, k, e, r, n, kCode your solution in our custom editor or code in your own environment and upload your solution as a file. Track a variety of metrics to gain insight into the health of candidate experience and assessment quality for every HackerRank test. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. This repository contains solutions to the Algorithms Domain part of HackerRank. sanjugodara13. Question: Python if-else [Introduction] Possible solutions. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. Data. HackerRank Game of Thrones I Solution. Your task is to change it into a string such that there are no matching adjacent characters. Determine which weighted substrings in a subset of substrings can be found in a given string and calculate the string's total weight. 1. One of the best ways to absorb and retain new concepts that I have learnt about coding in Python is through documentation! As part of my journey to future-proof my data career and also to improve my proficiency in the python language, I have spent some of my free time to solve coding challenges on HackerRank. Determining DNA Health – HackerRank Solution. md","contentType":"file"},{"name":"alternating. Solution:Append and Delete HackerRank Solution in C, C++, Java, Python. 2. Try to use this promocode 5offnow to get a discount as well. Solution-1: Using if-else statements. Larry has been given a permutation of a sequence of natural numbers incrementing from 1 as an array. The problem is to find the strands of DNA from an array of numbers with a given. py . This video demonstrates the concept of finding out the overall health of any input DNA strand when comparing it ONLY with the beneficial genes present in DNA. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. we have also described the steps used in solution. Discussions. Given a string of lowercase letters in the range ascii[a-z], determine a character that can be removed to make the string a palindrome. Journey to the Moon. To accomplish the task you need M minutes, and the deadline for this task is D. // Copyright © 2017 Kaidul Islam. 100 HackerRank Solution in Order. Very beautiful (and hard) problem. java at master · iancarson/HackerRank_Solutions"Determining DNA Health" at HackerRank . Code your solution in our custom editor or code in your own environment and upload your solution as a file. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. using System. 6 of 6 Learn how to solve the Hackerrank Determining DNA Health problem in Python and Java programming languages. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. Code your solution in our custom editor or code in your own environment and upload your solution as a file. e. Implementation":{"items":[{"name":"001. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. py. determining-dna-health . Question: String Validators [Python Strings] Possible Solutions. Linq; class Solution {public static int Occurance (string search, string str) {int count = 0; int length. md","contentType":"file"},{"name":"alternating. and health values. There may be more than one solution, but any will do. The final print. md and happy coding 😀 🐱‍💻. A user asks for help with a Java solution for a HackerRank problem that calculates the health of a DNA strand based on a list of genes. Should the algorithm pick "aaa", "aa" + "aaa" (and the its swapped equivalent) or the maximal value of overlapping sequences: "aa" + "aaa" + "aa" or "aaa" + "aa" This looks like it could only be solved through bruteforcing gene subsequences and check for a maximal. CHEATSHEET : ^ Matches the beginning of a line $ Matches the end of the line . Determining DNA health, in Python 3, pure Aho-Corasick solution, 50points:Determining DNA Health – HackerRank Solution. in this article we have collected the most asked and most important Hackerrank coding questions that you need to prepare to successfully crack Hackerrank coding round for. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Ashton and String","path":"Ashton and String","contentType":"file"},{"name":"Bead Ornaments. DNA is a nucleic acid present in the bodies of living things. C, C++, Java, Python, C#. A queen is standing on an chessboard. Last modified: 5 July 2020. Leave a Comment Cancel reply. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. Buenos días, hace poco leí este post de codeforces. Output Format. HackerRank Knapsack problem solution. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. ABC->BCA->CAB->ABC. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. He must determine whether the array can be sorted using the following operation any number of times: Choose any 3 consecutive indices and rotate their elements in such a way that. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. Last modified: 5 July 2020. The integer being considered is a factor of all elements of the second array. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. Compiler; using System. The task is to take a subsection of these sequence value pairs from. Take the min of swaps counted for ascending and desending sorted arrays. CodeChef is a global competitive programming platform, started as an educational initiative in the year 2009. length; }Code your solution in our custom editor or code in your own environment and upload your solution as a file. 6 of 6Determine which weighted substrings in a subset of substrings can be found in a given string and calculate the string's total weight. CodeChef is a global competitive programming platform, started as an educational initiative in the year 2009. In this blog post, I shared the. The first line contains an integer, n, he number of nodes in the tree. This button displays the currently selected search type. 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. Implementation of queue by using link list. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. In this HackerRank Sansa and XOR problem solution, we have an array and we need to find the value obtained by XOR using the contiguous subarrays, followed by XOR using the values thus obtained. DNA is a nucleic acid present in the bodies of living things. Java has 8 primitive data types; char, boolean, byte, short, int, long, float, and double. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"coding club","path":"coding club","contentType":"directory"},{"name":"30 review loop. Determining DNA Health. Each piece of DNA contains a number of genes, some of which are beneficial and increase the DNA's total health. Determine which weighted substrings in a subset of substrings can be found in a given string and calculate the string's total weight. io. Building models. A short is a 16-bit signed integer. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. Determining_DNA_Health. I am trying to solve Determining DNA Health challenge from Hackerrank using python. divisibleSumPairs has the following parameter(s):HackerRank Sansa and XOR problem solution. Code your solution in our custom editor or code in your own environment and upload your solution as a file. August 17, 2023 12 min to read HackerRank Algorithms Solutions using Python and C++(CPP) An algorithm is a set of instructions that are used to accomplish a task, such as finding the largest number in a list, removing all the red cards from a deck of playing cards, sorting a collection of names, figuring out an average movie rating from just your friend’s. 4 of 6; Test your code You can compile your code and test it for errors. 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Strings":{"items":[{"name":"README. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. public. Determine which weighted substrings in a subset of substrings can be found in a given string and calculate the string's total weight. On a new line for each test. In this lesson, we have solved the Printing Tokens problem of HackerRank. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. The goal of this series is to keep the code as concise and efficient as possible. 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. , c[n], where each c[i] enotes the value at node i. ; sort: Sort the list. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. The chess board’s rows are numbered from to , going from bottom to top. 100 HackerRank Solution in Order. 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. It is an unordered collection of element which have to be hashable just like in a set . Given a pointer to the head of a linked list, determine if it contains a cycle. codechef-solutions. py . The problem is to find the strands of DNA from an array of numbers with a given standard and print them as two space-separated values. Each gene has a health value, and the total health of a DNA is the sum of the health values of all the beneficial genes that. com!Solution on my GitHub repo: which weighted substrings in a subset of substrings can be found in a given string and calculate the string's total weight. More than 100 million people use GitHub to discover, fork, and contribute to over 330 million projects. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. length; } Code your solution in our custom editor or code in your own environment and upload your solution as a file. 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. HackerRank is a place where programmers from all over the world come together to solve problems in a wide range of Computer Science domains such as algorithms, machine learning, or artificial intelligence, as well as to practice different programming paradigms like functional programming. 1 I am trying to solve Determining DNA Health challenge from Hackerrank using python. 6 of 6 Random HackerRank challenges. Please Login in order to post a comment. Table of Contents. Coding Made Simple. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. Return to all comments →. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Algorithms/03. Determine how many squares the queen can attack. 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. Instructions: Please copy and paste “Reprocessing into the LMS search engine once you login. Queen’s Attack 2 HackerRank Solution in C, C++, Java, Python. Well earned and well deserved. When a valid gene sequence is found, a further O(log m) where m=number of duplicate gene entries, to locate the first gene that falls within the [start, end] range. This problem (Determining DNA Health) is a part. remove () & . The Solutions are provided in 5 languages i. Determining DNA Health. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. This button displays the currently selected search type. Given an array of integers, determine whether the array can be sorted in ascending order using only one of the. Star. md","path":"Strings/README. At least, this is one of the most effective ways to forget about depression and get rid of any consequences in advance. e. ; print: Print the list. io. 6 of 6Code your solution in our custom editor or code in your own environment and upload your solution as a file. Return to all comments →. util. IO; using System. Submissions. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. Determining DNA Health Problem Submissions Leaderboard Discussions Editorial Hacker Rank Country Language Score anta0 01 C++14 50. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. Implementation of singly link list. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. Hackerrank Coding Questions for Practice. ComponentModel; using. what is problem in this solution. Print Prime Numbers – HackerRank Solution. py. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. Es un honor para mí que problemas de mi autoría se hayan tomado en la Olimpiada Informática Argentina. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. Example head refers 1 -> 2 -> 3 -> NUL The numbers shown are the node numbers, not their data values. If no item has a smaller item with a lower index, then return -1. Explore the latest collection of shoulder bags online at Walkeaze. You need not complete a task at a stretch. It is an unordered collection of element which have to be hashable just like in a set . Solution-3: Using re module. For example, if your string is "bcbc", you can either remove 'b' at index or 'c' at index . In Java, it can be optimized in two ways: 1.