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Page 1482 of 2109
Arrange consonants and vowels nodes in a linked list in C++?
A singly linked list is a fundamental data structure that consists of nodes, where each node contains a data field and a reference to the next node in the linked list. The next of the last node is null, indicating the end of the list. The given task is to rearrange the linked list in such a way that all the vowel nodes precede the consonants while maintaining the order of their arrival. Scenario Input: a -> b-> c -> d-> e-> f-> g-> h-> i Output: a-> e-> i-> b-> c-> d-> f-> g-> h To solve this problem, we ...
Read MoreFind the closest element in Binary Search Tree in C++
In this article, we will learn to solve a popular problem that involves finding the closest element in a binary search tree (BST) to a given target value. There are two methods to solve this problem: Brute Force Method (Inorder Traversal) Optimized Method (DFS Traversal) Before moving to the solution, let's understand the problem statement in detail. Find the Closest Element in Binary Search Tree Given a binary search tree (BST) and a target value K, the task is to find a node in BST, whose value is ...
Read MoreAlternate Primes till N in C++?
A prime number is a number greater than 1 that is divisible only by 1 and itself. Given a number N, our task is to print all alternate prime numbers up to N. This means we skip every second prime number and only print the 1st position, 3rd position, 5th position, and so on. Let's look at the example scenarios to understand the problem clearly: Scenario 1 Input: N = 15 Output: 2 5 11 Explanation: Prime numbers up to 15 are: 2, 3, 5, 7, 11, 13 Taking alternate primes (1st, 3rd, 5th): 2, 5, 11 Scenario 2 ...
Read MoreCheck if a line passes through the origin in C++
In this article, we have a line and its coordinates are given. Our task is to check if this line passes through the origin or not. The basic two-point form of a straight line is given by: $$ \frac{y - y_1}{y_2 - y_1} = \frac{x - x_1}{x_2 - x_1} + c $$ For the above line to pass through the origin, put x = 0, y = 0, and c = 0. The formula for a straight line to pass through the origin can be given by: $$ y_1(x_2 - x_1) = x_1(y_2 - y_1) $$ Here are some ...
Read MoreFind square root of number upto given precision using binary search in C++
In this article, we will learn how to find the square root of a number up to a given precision by using binary search algorithm and implement it in C++. Before dive into the concept, make sure that you have a basic understanding of binary search algorithm. Square Root of a Number Upto a Given Precision In this problem, you are given a positive floating point number N and a positive integer P. The task is to find the square root of N up to P decimal places using binary search. Scenario 1 Input: N = ...
Read MoreC++ code to find answers by vowel checking
In this article, we will explain a beginner level problem that involves finding answers for questions by checking for vowels in the question text. We will implement a C++ program that solves this problem. Let's break down the problem statement below. Find Answers by Vowel Checking Amal and Bimal are playing a game. Amal will ask any questions whose answers will be either "Yes" or "No". If the question’s last letter is a vowel, then Bimal will answer "Yes" otherwise "No". You are given a string containing the question that Amal asks. Your task is to determine the answer ...
Read MoreAlternate Fibonacci Numbers in C++
The Fibonacci sequence starts from 0 and 1, and each number is the sum of the previous two. In this problem, we are given a number n, and we need to print the first n numbers from the Fibonacci series, but only the numbers at alternate positions (like 0th, 2nd, 4th, and so on). Let's look at some example scenarios to understand it clearly: Scenario 1 Input: n = 7 Output: 0 1 3 8 Explanation: The first 7 Fibonacci numbers are 0 1 1 2 3 5 8. If we pick alternate numbers (index 0, 2, ...
Read MoreOrder of evaluation in C++ function parameters
In C++, when we pass multiple arguments to a function, a common question arises, in what order are these arguments evaluated? Is it from left to right, right to left, or does it depend on the compiler? In this article, we will learn how function parameter evaluation works in C++, why the order of evaluation is important, and how it can vary across different compilers. Is the Order of Evaluation Defined in C++? The C++ standard does not guarantee a fixed order of evaluation for function arguments. This means compilers are free to evaluate arguments from left to ...
Read MoreJava Program to Get the middle element of LinkedList in a single iteration
The java.util.LinkedList class represents a linked list in Java, specifically a doubly-linked list, i.e., we can traverse through the list either from the beginning or from the end, whichever is closer to the specified index. We can create and perform various operations on a linked list using the methods provided by this class.Retrieving the Middle Element of a LinkedList In this article, we will understand how to find the middle element of a LinkedList using Java. We will use the following ways to do so: Using a While Loop Using size() ...
Read MoreAbsolute Difference of all pairwise consecutive elements in an array (C++)?
An array in C++ is a data structure used to store multiple values of the same type in a contiguous block of memory. To know that how values shift from one index to the next, a common and practical technique is to compute the absolute difference between each pair of consecutive elements. Absolute Difference The absolute difference is the positive distance between two numbers, regardless of which one is larger. It is computed using the abs() function from the library. Absolute difference between a and b is denoted as |a - b|. For example, |7 - 3| = ...
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