match (/ [^aeiou]/ig). Python Server Side Programming Programming. Approach: Firstly generate all the substring of length L and then by using set we can insert unique sub-string till the length L and then print the result. Good luck! This challenge comes from KenKamau at CodeWars, who has licensed redistribution of this challenge under the 2-Clause BSD License!{"payload":{"allShortcutsEnabled":false,"fileTree":{"Problem solving & Exercises/HackerRank/Certificates/Problem Solving (Basic)/usernames-changes":{"items":[{"name. This might sometimes take up to 30 minutes. md","contentType":"file"},{"name":"balanced_system_file_partition. 17. python hackerrank fizzbuzz certification python-basics swapping reversed python-certification hackerrank-certification Updated Jan 18, 2021;. ; The value of table[i][j] is true, if the substring is palindrome, otherwise false. There are 1 question that are part of this test. Challenge Walkthrough Let's walk through this sample challenge and explore the features of the code editor. We’re fortunate to play a part in expanding and growing the developer community during this time of rapid change. Description: Given a string S of lowercase English letters and an integer of the substring length K, determine the substring of that length that contains the most vowels. c. 2. Given a lowercase string that has alphabetic characters only and no spaces, return the length of the longest vowel substring. So, for instance if , we return ' a '. "ab" is the only possible substring which starts with a vowel (a) and ends with a consonant (b). Suppose we have a string in lowercase alphabets, we have to find substrings that contain all the vowels at least once and there exist no consonants in that substrings. Count the number of substrings within an inclusive range of indices. On the way back to the starting point,the taxi driver may pick up additional passengers for his next trip to the airport. py","contentType":"file"},{"name":"README. 1456. {"payload":{"allShortcutsEnabled":false,"fileTree":{"06_SI_Basic-Hackerrank":{"items":[{"name":"01_Max Element in the Array. Write A Program To Find Character Is Vowel Or Not,c program to check vowel or consonant using switch, write a program to determine whether the input character is a vowel or consonant or not an alphabet, c++ program to find number of vowels in a string,. You should have some knowledge of RESTful APIs. You must check the stringstream hackerrank solution. So, if the input is like "helloworldaeiouaieuonicestring", then the output will be ['aeiou', 'aeioua', 'aeiouai',. How can we help you? Home; About. in python. After going through the solutions, you will be able to understand the concepts and solutions very easily. We need to know some essential things in C++ before solving these programming challenges by hackerrank competitive programming websites. If yes increment count. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/vowel-substring":{"items":[{"name":"test-cases","path":"certificates/problem. py","contentType":"file. Continue. Input : S = "adceba" Output : 9. Took this test on HackerRank here on 14th July 2020. java. Hackerrank Problem Solving(Basics) Solutions | Hackerrank Free Courses With Certificate | Hackerrank#Hackerrank#LetsCodeAbout this video:In this Video you wi. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"README. It covers topics of Data Structures (such as HashMaps, Stacks and Queues) and Algorithms (such as Optimal Solutions). Input: s = "aeiou", k = 2 Output: 2 Explanation: Any substring of length 2 contains 2. Each of the 5 English vowels ('a', 'e', 'i', 'o', 'u') must appear at least once in it. . {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/vowel-substring":{"items":[{"name":"test-cases","path":"certificates/problem. Explore Skills. Use the in operator to check if a letter is a vowel. Print all Substrings of a String that has equal number of vowels and consonants. Count the number of vowels occurring in all the substrings of given string. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/vowel-substring":{"items":[{"name":"test-cases","path":"certificates/problem. Python Average Function Hackerrank Solution. Offers a unique multimedia format for learning the fundamentals of data structures and algorithms. Please ensure you have a stable internet connection. 2. Disclaimer: The above Python Problems are generated by Hacker Rank but the Solutions are Provided by CodingBroz. Explanation: Smallest substring which contains each vowel atleast once is “abeivou” of length 7. Day 0: Hello, World. Determine if a string contains a subsequence of characters that spell "hackerrank". To get a certificate, two problems have to be solved within 90 minutes. The program can be summarized as follows: Count the number of vowels in the substring of length k starting from 0: s [0:k] Check if the count is greater than zero, indicating that the substring contains some vowels. You signed out in another tab or window. ; For example, strings "aeiou" and "aaaaaaeiiiioou" are considered beautiful, but "uaeio", "aeoiu", and. Input: str = “abcdef”. Pseudo-Palindromic Paths in a Binary Tree 1458. This is a sample test to help you get familiar with the HackerRank test environment. To solve this, we will follow. Question IndexesThis is a sample test to help you get familiar with the HackerRank test environment. Some common causes of a " Wrong Answer " are listed below: A mismatch between the format of your output and the format of the expected output. Do you have more questions? Check out our FAQ. Assured Nursing; Nora Vandagrifft; Benefits{"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/vowel-substring":{"items":[{"name":"test-cases","path":"certificates/problem. Get Complete 200+ Hackerrank Solutions in C++, C and Java Language. A substring is a contiguous (non-empty) sequence of characters within a string. Scoring. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":". The substring can be a combination of vowel and consonant but it should have the highest number of vowels. Day 3: Intro to Conditional Statements. I used the code stubs provided by HackerRank, so don't mind the unnecessary imports, naming convention and so on. What I have written is below. INTEGER k # def findSubstring (s, k): vowels = ["a", "e", "i", "o", "u"] cur = best = sum([c in vowels for c in s[:k]]) ans = 0 for i in range(k, len(s)): cur += s[i] in vowels cur-= s[i-k] in vowels if cur > best: best = cur ans = i-k + 1 if best > 0: return s[ans:(ans + k)] else: return "Not found!" I have to find the substring of that length that contains the most vowels. Request a demo. Note: Due to the large constraints, the answer may not fit in a signed 32-bit integer. View all certifications. md","path":"README. We would like to show you a description here but the site won’t allow us. Solution – Java Substring. Object Oriented Programming. The time complexity is O (n²). # Example 1 # s = 'caberqiitefg' # k = 5 # The substring of length k = 5 that contains the maximum number of vowels is 'erqii. This is the best place to expand your knowledge and get prepared for your next interview. Given a string, , and two indices, and , print a substring consisting of all characters in the inclusive range from to . Because we only have 1 qualifying substring, "ab" is both the alphabetically first and last qualifying substring and we print it as our first and second lines of output. The vowels are [a, e, T, b: A substring is a contiguous group of characters in the string. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Skills Certification/Problem Solving - Basic":{"items":[{"name":"01 - String Anagram. py","path":"Problem Solving. ^ and $ anchor the match to the beginning and end of the value. nextInt (); int endIndex = input. Follow the steps mentioned below to implement the idea: Maintain a boolean table[N][N] that is filled in a bottom-up manner. Maximum Number of Vowels in a Substring of Given Length 1457. This is the best place to expand your knowledge and get prepared for your next interview. Step 3: If true iterate the string from the end, if false move to next iteration. For example : input "blue" will have number of subsgments = 1, "hackerrank" will return number of segments = 3 ("ha","cker","rank") each will contain at least one consonant and one vowel. max (len (list (v)) for k,v in groupby (s, key=lambda x: x in 'aeiou') if k) # 7. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/balanced-system-files-partition":{"items":[{"name":"test-cases","path. You are expected to be proficient in either Java 7 or Java 8. Problem Solving (Basic) Get Certified. java","contentType":"file"},{"name":"Arrays_LeftRotation. reduce ( (longest, vowelGroup. Day 4: Class vs. java","path":"Arrays_2D. For each given string you have to print the total number of vowels. # # The function is expected to return a LONG_INTEGER_ARRAY. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Prime no. We are evaluating your submitted code. Dot and Cross – Hacker Rank Solution. Time Complexity: O(n 3) Space. Output: “aaa”. This is the function that we need to complete. C C++ Server Side Programming Programming. Continue. January 2023. Feel free to use my solutions as inspiration, but please don't literally copy the code. A simple solution is to generate all substrings. For every substring check the condition of special string. The convenience of accessing Vowel Substring Hackerrank Solution and various genres has transformed the way we consume literature. Now, the count of vowels in the range [L, R] can be easily calculated. The possible 5 character substrings are: 'azerd' No. Output: 4. given an array of n elements containing the count of (i+1) dumbbell weights. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/balanced-system-files-partition":{"items":[{"name":"test-cases","path. Find the minimum number of characters of the first string that we need to change in order to make it an anagram of the second string. Hello coders, in this post you will find each and every solution of HackerRank Problems in C++ language. For Example: String S = BANANA. Count Vowel Substrings of a String . Output: -1. HackerRank Python (Basic) Skill Certification Test. md","path":"README. In my test, this won't use an index on the name column, so it will need to perform a full scan, as would. This tutorial is only for Educational and Learning Purpose. Our next loop (s[i] = “i”) has an index of 3, which is equal to k (k = 3). C Program For Upper. Step 4: check the jth character for consonant. But it would fail in many HackerRank test cases. Do you have more questions? Check out our FAQ. If the string has less than 2 vowels return False. Take the HackerRank Skills Test. C Program For Remove All Vowels From A String. Time Complexity: O(n*m) (For every call in the recursion function we are decreasing n, hence we will reach the base case exactly after n calls, and we are using for loop for m times for the different lengths of string Y). This is the function that we need to complete. Behind the Scenes of the interview processes at Google, Amazon, Microsoft, Facebook, Yahoo, and Apple: Learn what really goes on during your interview day and how decisions get made. August 4, 2023. 09. Cherry. It covers topics like Scalar Types, Operators and Control Flow, Strings, Collections and Iteration, Modularity, Objects and Types and Classes. Vowel letters in English are (a, e, i, o, u). Output: 7. b. Take the HackerRank Certification Test and make your profile stand out. Example: The string = ana is equal to substrings (and subsequences) of = banana at two different offsets: . # # The function is expected to return a LONG_INTEGER. Linear Algebra – Hacker Rank Solution. You've arranged the problems in increasing difficulty order, and the i th problem has estimated difficulty level i. More than 100 million people use GitHub to discover, fork, and contribute to over 330 million projects. py","path":"Skills. Take the HackerRank Skills Test. So, if the input is like s = "abciiidef", k = 3, then the output will be 3. Time Complexity: Basically, We slide the window throughout the length of string, N, and traverse each character only once. This repository consists of JAVA Solutions as of 1st April 2020. Exception Handling. Vowel substring. Day 5: Loops. Time Complexity: O(n^2), (The outer loop runs in O(n) time, and the inner loop runs in O(n) in the worst case (considering all unique characters), resulting in a total time complexity of O(n^2). If there is no element , return INVALID. An anagram of a string is another string with the same characters in the same frequency, in any order. md","contentType":"file"},{"name":"balanced_system_file_partition. Explanation: No such substring is found. 1 1: The only substring of a is itself, so we print on a new line. Solve Challenge. Feel free to use my solutions as inspiration, but please don't literally copy the code. Kevin’s vowel beginning word = ANA. We have a function called avg that takes in a variable number of integer inputs. The Matrix is. A string is a substring (or factor) of a string if there exists two strings and such that =. The following is a list of possible problems per certificate. # Check if a letter is a Vowel in Python. Note: Due to the large constraints, the answer may not fit in a signed 32-bit integer. Hackerrank Problem Solving(Basic) Certificate test soltions. if true perform the following. Output: -1. Problem. SELECT COUNT(CITY) — COUNT(DISTINCT CITY) FROM STATION ; X. Hello coders, in this post you will find each and every solution of HackerRank Problems in C language. # If there are no vowels in the input string, return the string 'Not found!' without quotes. Efficient Approach: To optimize the above approach, the main idea is to count the length of the substring which contain only vowels, say x. Sock Merchant. Key Competencies: Data Structures - Use sata structures such as hash maps, stacks. Initially, some strings A' and B' are written on the sheet of paper. . The time complexity of this approach is O (N 3) which is not suitable for large values of N. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/string-anagram":{"items":[{"name":"test-cases","path":"certificates/problem. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/nearly-similar-rectangles":{"items":[{"name":"test-cases","path":"certificates. md","path":"README. md","path":"README. Use a regular expression. Efficient Approach: The. Either way, a simple regular expression can get the characters you need. java","contentType":"file"},{"name":"Arrays_LeftRotation. java","path":"Arrays_2D. # The function accepts following parameters: # 1. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"vowel substring. We are evaluating your submitted code. # The function accepts following parameters: # 1. HackerRank | Practice, Tutorials & Interview Preparation Solutions. Input: str = “ceebbaceeffo”, K = 3. You signed in with another tab or window. py","path":"vowel substring. Example s="aeloaexaaeulou There is a substring to the. java","path":"Arrays_2D. For example ‘abc’, ‘acb’,‘bca’,‘cab’,‘cba’,‘bac’ all are anagrams of ‘abc’. md","contentType":"file"},{"name":"balanced_system_file_partition. Vowel Substring Hackerrank Solution The Enigmatic Realm of Vowel Substring Hackerrank Solution: Unleashing the Language is Inner Magic In a fast-paced digital era where connections and knowledge intertwine, the enigmatic realm of language reveals its inherent magic. Vowels are any of aeiou. md","path":"README. md","contentType":"file"},{"name":"balanced_system_file_partition. com like an old school people. Length of the string, n = 7. Start hiring at the pace of innovation!{"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/active-traders":{"items":[{"name":"test-cases","path":"certificates/problem. A map of passenger location has been created,represented as a square matrix. com like an old school people. If you have any query then drop me message into LinkedIn or else you can email me on deeppatel. Run directly on a VM or inside a container. py","path":"Prime no. Separate the NumbersEasyProblem Solving (Basic)Max Score: 20Success Rate: 89. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Python/String/The Minion Game":{"items":[{"name":"Python2. Minimize replacement of bits to make the count of 01 substring equal to 10 substring. 3. Some sample examples of Questions from Hackerrank. md","path":"README. But if you're drawing 10+ sprites and trying to maintain 60 fps, you're creating a LOT of objects and garbage collection churn. Auxiliary Space: O(1), no extra space is required, so it is a constant. Combine the two sets and sort them to get . 1. In this HackerRank Count Strings problem solution, we have given a regular expression and an the length L. Maximum number of vowel letters in any substring of string 's' with length 'k' Raw. The longest common substring is “Geeks” and is of length 5. ). 2. Take the HackerRank Skills Test. Solved submissions (one per hacker) for the challenge: correct. If I define a simple string variable, how would I count and output the number of vowels in the string in the simplest possible way? I have searched and found a number of similar ways to do so, but most seem more complex than necessary. If yes increment count. HackerRank Badges. Check if the char is vowel or not. To get a certificate, two problems have to be solved within 90 minutes. The letters must be sorted in alphabetical order (i. After going through the solutions, you will be able to understand the concepts and solutions very easily. If there is more than one substring with the maximum number of vowels, return the one that starts at the lowest index. is excluded. whitney. Domains Basic Select ChallengesThen by mapping with the len, you're taking the len of each item in the list: And finally by taking the max you'll find the longest sequence of vowels in the list. js This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. py","path. md","path":"README. A player gets +1 point for each occurrence of the substring in the string S. simple date time in java. {"payload":{"allShortcutsEnabled":false,"fileTree":{"06_SI_Basic-Hackerrank":{"items":[{"name":"01_Max Element in the Array. Given two strings of lowercase English letters, and. If you have any query then drop me message into LinkedIn or else you can email me on deeppatel. I used the code stubs provided by HackerRank, so don't mind the unnecessary imports, naming convention and so on. Given a string, count the number of vowels in the string. Hackerrank Problem Solving (Basic) | Hackerrank Free Courses With Certificate | Hackerrank | Active Traders#Hackerrank#TanmayChowdhury #coding #education #ce. We need a number 0x208222 which gives 1 in its LSB after right-shift 1, 5, 19, 15 otherwise gives 0. Python Average Function Hackerrank Solution. operate on a char array after converting from the string since Java. To get a certificate, two problems have to be solved within 90 minutes. Linux, macOS, Windows, ARM, and containers. Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. org on 2020-02-13 by guest the implementation language, while also providing intuition and analysis of fundamental algorithms. all 'a's before 'e's, all 'e's before 'i's, etc. A sample String declaration: String myString = "Hello World!" The elements of a String are called characters. On each day, you will choose a subset of the problems and solve them. . {"payload":{"allShortcutsEnabled":false,"fileTree":{"Skills Certification/Problem Solving - Basic":{"items":[{"name":"01 - String Anagram. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Skills Certification/Problem Solving - Basic":{"items":[{"name":"01 - String Anagram. Input: str = “aaaa”, L=3. Ten Mistakes Candidates Make -- And How to Avoid. Naive Approach: The simplest approach to solve the given problem is to generate all possible substrings from. Auxiliary Space: O (1)Most efficient way to check Vowel using bit shift : In ASCII these are the respective values of every vowel both in lower and upper cases. Repeated String. Archives. If you submitted more than one solution for a problem, only your highest score achieved will be used in this calculation. The *args is a special syntax in python used to define a variable number of inputs. Language: Python3; 1. count = 0. Scanner input = new Scanner (System. Here is the list of C# solutions. My primary purpose is to pass all the platform tests of a given problem. It covers basic topics of Data Structures (such as Arrays, Strings) and Algorithms (such as Sorting and Searching). For example, your strings are . To get a certificate, two problems have to be solved within 90 minutes. My solution was: for each character, check if the string from that specific character begins with the sub string required, so that overlapping ones are accounted for too. I don't know the better solution for it. So that I did not follow any coding style. python hackerrank fizzbuzz certification python-basics swapping reversed python-certification hackerrank-certification. Can anybody explain why in code in editorial (and many of solutions here) to found player's score we subtract index number from the length of the string (and then sum all this subtractions). {"payload":{"allShortcutsEnabled":false,"fileTree":{"Interview Preparation Kit/05 - String Manipulation":{"items":[{"name":"01 - Strings - Making Anagrams. So if the string is like “helloworld”, then the output will be 8. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Java/Strings/Java Substring":{"items":[{"name":"Solution. Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews. A substring is a contiguous (non-empty) sequence of characters within a string. Now, take the first string “aeoi”, it will not be counted because vowel ‘u’ is missing. Each of the next lines contains a string, string contains both lower case and upper case . N which you need to complete. You are required to determine the substring with highest number of vowels . We need a number 0x208222 which gives 1 in its LSB after right-shift 1, 5, 19, 15 otherwise gives 0. Max Dot Product of Two Subsequences 1459. Programming solution for Hackerrank certification questions. Find Sum of elements in a subarray (if in subarray has 0, sum = sum + number x) input: numbers: main array (1-indexed) queries: array of query: left index, right index, number x (0-indexed)The problem solutions are entirely provided by Deep Dalsania. HackerRank Certificates Table Of Contents. Question 1 – Maximum Passengers. Ask Question Asked 1 year ago. in); String text = input. You are given a randoms string containing only lowercase letters and you need to find if the string contains ALL the vowels. Two strings are anagrams of each other if the letters of one string can be rearranged to form the other string. August 27, 2023. Generate a string whose all K-size substrings can be concatenated to form the given string. Problem solution in. More than 3,000 tech teams, representing all industries and from countries around the world, trust HackerRank. Can you solve this real interview question? Count Vowel Substrings of a String - Level up your coding skills and quickly land a job. 72%. Level up your coding skills and quickly land a job. Vowels of All Substrings - Given a string word, return the sum of the number of vowels ('a', 'e', 'i', 'o', and 'u') in every substring of word. 1 min read. The CountryCode for America is USA. There are 1 question that are part of this test. we need to count how many strings of length L are recognized by it. Given strings , find and print the minimum cost of copying each to on a new line. Naive Approach: To solve the problem mentioned above, we have to generate all the substrings of length K and store the lexicographically smallest of all. 0. Level up your coding skills and quickly land a job. PasswordDecrypt. md","path":"README. If two substrings have the same length, your code should return the first substring. C Program To Convert String To Integer Without Using Library Functions. log (res2);The solutions of all the SQL challenges for all easy, medium and hard challenges on HackerRank executed on MySQL environment compiled with helpful Resources & references related to the challenges. sql. Share. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/vowel-substring":{"items":[{"name":"test-cases","path":"certificates/problem. You might want to use [b-df-hj-np-tv-z] instead of [^aeiou] and use flags=re. That’s over 25% of the world’s developers who are using HackerRank to level up their coding skills. {"payload":{"allShortcutsEnabled":false,"path":"certificates/problem-solving-basic/vowel-substring","repo":{"id":406748388,"defaultBranch":"master","name":"hackerrank. Auxiliary Space: O(1), no extra space is required, so it is a constant. py","contentType":"file"},{"name":"String. n followed by n integers. Join over 16 million developers in solving code challenges on HackerRank, one of the best ways to prepare for. e. md","path":"certificates/problem-solving-basic/vowel-substring/README. . window. Certificates. Our function should return the length of the longest contiguous substring that contains only vowels. Step 2: check if the ith character for vowel. FizzBuzz (Practice Question - Ungraded) Reverse Word & Swap Case; String Representations of. . If the size of the hash is 5 (all vowels are present in the current substring), print the substring from start to i+1. This is the best place to expand your knowledge and get prepared for your next interview. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/maximum-cost-of-laptop-count":{"items":[{"name":"test-cases","path. That is, 'a', 'e', 'i', 'o', and 'u' must appear an even number of times. find maximum pair of dumbbell weights whereby pairs can have difference of max 1. Find the end of the substring j = i+length-1. binaryExplanation. Return the maximum number of vowel letters in any substring of s with length k. Choose any substring of and append it to the end of at no charge. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/vowel-substring":{"items":[{"name":"test-cases","path":"certificates/problem. ; If no vowels and an odd number of consonants are present in the string then the player who starts the game wins the game, i. Find the length of largest magical sub-sequence of a string S. You'll find the String class' substring method helpful in completing this challenge. Questions Feel free to choose your preferred programming language from the list of languages supported for each question. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/maximum-cost-of-laptop-count":{"items":[{"name":"test-cases","path. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"README. 🚀 - A better way to prepare for Coding InterviewsSolving Leetcode 1456 - Maximum Number of Vowels in a Substring of Given Length, today. As very lower and upper case vowels have the same 5 LSBs. hackerrank-solutions / certificates / problem-solving-basic / vowel-substring / stub. A substring is a contiguous (non-empty) sequence of characters within a string. Here is my. Hello coders, today we are going to solve Java Substring HackerRank Solution. Count the number of vowels occurring in all the substrings of given string. If there is more than one longest. {"payload":{"allShortcutsEnabled":false,"fileTree":{"certificates/problem-solving-basic/subarray-sums":{"items":[{"name":"test-cases","path":"certificates/problem. md","contentType":"file"},{"name":"balanced_system_file_partition. Two Pointer Approach: Store the frequencies of each vowel and the indices at which the vowels are present. py","path":"Skills. Output: “abc”, “bca”. The task is to print all the unique substring of length L from string str . A substring is a contiguous (non-empty) sequence of characters within a string. Vowels: ['a', 'e', 'i', 'o', 'u'] Naive Approach. Input : S = "aba" Output : 2 Substrings of S are : a, ab, aba, b, ba, a Out of these only 'ab' and 'ba' satisfy the condition for special Substring. Repeat this process. C Program To Remove Given Word From A String. The problem reduces to finding the number of N-length paths in the constructed directed graph.