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C++ Articles
Page 342 of 597
What are postfix operators in C++?
In C++, operators are special symbols that are designed to perform various Operations on variables and values, like arithmetic, comparison, or logical operations. A Postfix Operator is a type of operator that is used to increment or decrement a value by 1(unless overloaded). It is a unary operator, which works only on a single variable. There are two types of postfix operators in C++: ++ : Post-increment -- : Post-decrement Post Increment Operator (++) The post-increment operator increments the value of a given variable by 1, but only after its ...
Read MoreC++ Program to Check the Connectivity of Directed Graph Using BFS
The Breadth-First Search (BFS) algorithm is a graph traversal algorithm that starts at the tree root and explores all nodes at the present depth before moving to the nodes at the next level. In this article, we will discuss how to check the connectivity of a directed graph using BFS traversal algorithm. Understanding Connectivity of a Graph A graph is said to be connected if there is a path between every pair of vertices. To check connectivity of a graph, we will try to traverse all nodes using any traversal algorithm. After completing the traversal, if there is any ...
Read MoreWhy is the size of an empty class not zero in C++?
The size of an empty class is not zero in C++ as it allocates one unique address to the object in the memory. The size can not be 0, because the two classes can not have the same memory address. So, the size of an empty class is 1 byte which does not hold any data, it is just for memory allocation. In this article, we will see an example of checking the size of an object of an empty class in C++. Demonstrating Size of an Empty Class In this approach, we have two C++ classes. One class ...
Read MoreC++ Program to Find Minimum Element in an Array using Linear Search
Linear search is a sequential searching algorithm where we traverse every element within the input array and compare it with the key element to be found. The minimum element refers to the smallest element in the array. In this article, we have an array of integers. Our task is to find the minimum element in that array using linear search. Here are the three approaches you can use to find the minimum element: Using Value Using Index Using Pointer Using Value In this approach, ...
Read MoreC Program to print numbers from 1 to N without using semicolon
Printing numbers from 1 to N is an easy task that can be achieved using loops, but to print numbers from one to N without using a semicolon is a tricky question. We will discuss two different methods to solve this question using iteration and recursion approaches. In this article, our task is to print numbers from 1 to 'n' and we don't have to use a semicolon. The approaches are listed below: Using Iteration Using Recursion Using Iteration This approach uses the iterative approach, where we have used the while loop to print the numbers from 1 to N. The num
Read MoreC Program to sum the digits of a given number in single statement
The calculation of the sum of the digits of a number in a single statement means that only one line of code will be doing the addition operation. The addition operation should not extend more than one statement. In this article, we have a number and our task is to calculate the sum of the digits of the number in a single statement in c. Here is a list of approaches: Using for Loop Using Recursive Function Using for Loop This approach uses a for loop to calculate the ...
Read MoreC++ Program to Emulate N Dice Roller
Emulating an n dice roller refers to rolling n number of dice simultaneously. In each roll, all the dice will return a different value from 1 to 6. In this article, we are having 'n' number of dices, our task is to emulate rolling n dices simultaneously. The approaches are mentioned below: Using Loop with rand() Function Using Recursion Using Loop with rand() Function In this approach, we have used the rand() function to generate a random value of dice in each roll. The srand() function with time() is ...
Read MoreC++ Program to Check the Connectivity of Undirected Graph Using BFS
The Breadth-First Search (BFS) algorithm is a graph traversal algorithm that starts at the tree root and explores all nodes at the present depth before moving to the nodes at the next level. In this article, we will discuss how to check the connectivity of a graph using BFS traversal algorithm. Understanding Connectivity of a Graph A graph is said to be connected if there is a path between every pair of vertices. To check connectivity of a graph, we will try to traverse all nodes using any traversal algorithm. After completing the traversal, if there is any ...
Read MoreWhat should main() return in C and C++?
In C/C++, the main() function is used in the beginning of every program. This returns the program execution status in the operating system. Syntax Following is the syntax of the main() function using C/C++: int main(void); int main(int argc, char *argv[]); Example Below, the C/C++ example shows the usage of the main() return value. C C++ #include int main() { printf("Hello, C World!"); return 0; } Key Points of C Return 0: This is standard for successful execution Non-zero: It indicates error Implicit return: C99 allows omitting return #include int main() { std::cout
Read MoreCheck if all the 1s in a binary string are equidistant or not in C++
In this problem, we are given a binary string, and we have to check if all the 1s present in the binary string are at an equivalent distance from each other. Example 1 Input: binaryString = "10101010" Output: Yes Explanation The positions of 1s in the given string are 1, 3, 5, and 7.Here, the difference between consecutive 1s is 2 (as 7-5 equals 5-3 equals 3-1), so all 1s are at an equivalent distance from each other. Example 2 Input: binaryString = ...
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