Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Programming Articles
Page 1603 of 2547
2D vector in C++ with user defined size
In this article, we will see how we create and use 2D vectors with user-defined sizes. What is 2D Vector? In C++, a vector is a dynamic array used to store elements. The 2D vector is a vector of vectors and are used to create a dynamic two-dimensional array where the number of rows and the number of columns in each row can vary. Just like a 2D array, a 2D vector is used to store data in a tabular form such as matrices, grids, or tables. Structure of a 2D Vector A 2D vector is declared as: vector v; ...
Read MoreMaximum triplet sum in array in C++
In this article, we are given an array of integers. Our task is to write a program to calculate the maximum triplet sum in the given array, i.e., find the set of three elements whose sum is maximum. Input Output Scenario Consider the following input and output scenario where we have calculated the sum of each triplet and then returned the maximum sum of the triplet in the array: Input: arr = {4, 6, 1, 2} Output: Maximum triplet sum: 12 Here is an explanation of the above example: All ...
Read MoreCheck if a number is Quartan Prime or not in C++
The Quartan primes are prime numbers that can be represented as x^4 + y^4. Where x, y > 0. Some Quartan prime numbers are {2, 17, 97, …}.In this article, we will learn how to check whether a number is Quartan Prime or not in C++. Consider the following input and output scenarios to understand the concept better: Scenario 1 Input: 17 Output: The number is Quartan Prime Explanation Here, we can represent the given number in the form of x^4 + y^4; (1)^4 + (2)^4 => 1 + 16 = 17. Scenario 2 Input: 12 Output: The number ...
Read MoreCheck if a given matrix is Hankel or not in C++
The Hankel matrix is a square matrix, in which each ascending skew-diagonal or anti-diagonal (from top-right to bottom-left) elements are constant. For example a matrix name M with size 5x5 is given below − 1 2 3 4 ...
Read MoreProgram to add two binary strings in C++
In this problem, we are given two binary strings, and we need to find their sum and return the result as a binary string. A binary string is a string that contains only the characters '0' and '1', where 0 and 1 are binary numbers. While adding two binary numbers, we follow the binary addition rules given below - 1 + 0 = 1 0 + 1 = 1 0 + 0 = 0 1 + 1 = 0 with a carry of 1 ...
Read MoreAdvantages of vector over array in C++
In C++, both arrays and vectors are used to store elements, but the main difference is that arrays have a fixed size and cannot be changed once initialized. Whereas, vectors are dynamic, i., e we can change their size during runtime. In this article, we'll look at the advantages of using vectors over arrays in C++. Here's how we declare an array and a vector in C++: // Declaring an array int arr[5]; // Fixed-size array of 5 integers // Declaring a vector #include std::vector vec; // Dynamic vector of integers Advantages of ...
Read MoreWhat are type specifiers in C++?
In a statically typed language such as C++, type specifiers are keywords that are used to define the type of data that given variables will hold. There are two types of type specifiers: built-in and user-defined type specifiers. Built-in Type SpecifiersThe built-in type specifiers are the basic and predefined data types provided by C++, such as int, float, char, signed, unsigned, short, long, etc. int myNumber = 42; In this given statement, the "int" is a type specifier, which states that the variable "myNumber" can only store integer values or numeric data types. There exist a lot of built-in type specifiers in C++ ...
Read More4Sum in C++
4SUM ProblemThe 4Sum is one of the problem variations in which we need to find the number of quadruplets present in the array such that their sum is equal to the given target. We are given an array of n integers called nums and a target value, and we have to find the number of index quadruplets (i, j, k, l) where i, j, k, and l are all indices in the range 0 to n - 1, such that they satisfy the condition: nums[i] + nums[j] + nums[k] + nums[l] = target Scenario 1 Inputs: arr= [-1, 0, 1, 2, ...
Read MoreAdd Two Numbers II in C++
We're given two singly linked lists, where each node stores one digit of a number. The digits are arranged from left to right, just like how we normally write numbers. For example: 7 -> 2 -> 4 -> 3 represents the number 7243. Our task is to add these two numbers and return the sum as a new linked list in the same (left-to-right) order. The input number can contain zeroes at the start, but in the output, there should not be any leading zeros. Let's understand this with a diagram given below - Scenario 1 Input: List 1 ...
Read MoreAbsolute distinct count in a sorted array in C++?
An array is a data structure that is used to store elements of the same data type, where a sorted array, in which the elements are arranged in ascending or descending order. The absolute distinct count gives the count of absolute (non-negative or unsigned) values of distinct (unique) elements present in an array. In this article, we will learn how to find the count of absolute values of all distinct elements in the given sorted array in C++. Consider the following input and output scenarios to under the problem better: Scenario 1 Input: [-5, -2, 1, 2, 5, 5, 6, ...
Read More