In this problem, we need th check whether the substring S1 appears after any occurrence of the substring S2 in the given string S. We can compare the starting index of S1 and S2 in the string S to solve the problem. Problem statement – We have given three substrings named S, S1, and S2. The string S always contains S1 as a substring. We need to check whether the substring S1 appears after any occurrence of the substring S2 in the given string S. Sample examples Input – S = "abxtutorialspointwelcomepoint", S1 = "welcome", S2 = "point"; ... Read More

We have given two strings and need to check whether the given string's permutations exist such that one permutation can have a larger character than another permutation at the ith index. We can solve the problem by sorting the string and comparing each character of the string one by one. Also, we can solve the problem using the frequency of characters of both strings. Problem statement – We have given a string str1 and str2 of length N. We need to check whether any permutations of both strings exist such that the permutation of one string is lexicographically larger than ... Read More

In this problem, we need to find the maximum length of the sub sequence with the same left and right rotations. The left rotation means moving all characters of the string in the left direction and the first character at the end. The right rotation means moving all string characters in the right direction and the last character at the start. Problem statement – We have given string str containing numeric digits and need to find the sub sequence of maximum length with the same left and right rotations. Sample examples Input – str = "323232", Output – 6 Explanation– ... Read More

In this problem, we need to find the average value of the count of set bits after performing K operations of all choices on the given string. There can be a brute force approach to solve the problem, but we will use the probability principles to overcome the time complexity of the brute force approach. Problem statement – We have given an integer N, array arr[] containing K positive integers, and a binary string of length N containing only set bits. We need to find the average value of the count of set bits after performing all possible choices ... Read More

In this problem, we need to find the total number of sub strings of length K containing at most X distinct vowels. We can solve the problem in two different ways. The first way is to get all sub strings and count distinct vowels in each sub string of length K. The second way is to use a map data structure and track the number of distinct vowels in the particular sub string. Problem statement– We have given string str of length N. The string contains only alphabetical characters. Also, we have given K and X positive integers. We need ... Read More

A prime number is a positive integer greater than 1 that is only divisible by 1 and itself. Prime numbers are an essential concept in mathematics and computer science. They are integers that are only divisible by 1 and themselves. Finding prime numbers is an important task in many algorithms, and there are several methods to determine if a number is prime. One such problem is finding the closest prime number to a given number. Problem Statement For a given number find the closest prime number by using Java programming language. Consider the following example - Input ... Read More

In Java, an ArrayList is a resizable array, which is implemented as part of the Java Collections Framework. It is a dynamic data structure that can hold any type of objects, including primitive types such as integers and characters. As per the problem statement we have to read a file into an ArrayList. First and foremost we will take the path of the file as input and then we will apply different method to read the file. Let's start!Example For instance Suppose the input file is “myfile.txt”. After reading the content of the file, the result ... Read More

In Java, Timestamp can be converted Date by using Date class. Date class is present in java.util package. The constructor of the Date class receives a long value as an argument. Since the constructor of the Date class requires a long value, we need to convert the Timestamp object into a long value using the getTime() method of the TimeStamp class. Let's deep dive into this article, to know how it can be done by using Java programming language. To show you with instance Suppose the timestamp is 06/01/2023. Then corresponding Date is “Fri Jan ... Read More

A numeric string in Python is a string that represents a numerical value using digits, signs, and decimal points, allowing for mathematical operations and data processing. In this article, we will learn a python program to increment numeric strings by K. Example Assume we have taken an input list of strings. We will now increment the numeric strings in an input list by k using the above methods. Input inputList = ["10", "hello", "8", "tutorialspoint", "12", "20"] k = 5 Output ['15', 'hello', '13', 'tutorialspoint', '17', '25'] In the above list, 10, 8, 12 20 are the numeric ... Read More

Finding the key of the maximum value tuples in a python dictionary means identifying the key associated with the tuple that has the highest value among all the tuples in the dictionary, which can be useful for retrieving the most significant or relevant information from the data. Example Assume we have taken an input dictionary having values as tuples. We will now find the key of maximum value tuples in an input dictionary using the above methods. Input inputDict = {'hello': ("p", 2), 'tutorialspoint': ("c", 15), 'python': ("k", 8)} Output The key of the maximum value in a ... Read More