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C++ Articles
Page 345 of 597
C++ program for mirror of matrix across diagonal
In this article, we will discuss how to create a C++ program to generate the mirror image of a matrix across its diagonal. The diagonal mirror of a matrix means that we swap the elements at symmetric positions with respect to the diagonal. Let's break down the problem step by step and then look at the code that solves this problem. Understanding the Problem For any given matrix, the mirror image across the diagonal means that the element at position (i, j) will be swapped with the element at position (j, i). This operation is also known as transposing ...
Read MoreHow to find the greatest divisor that divides all the natural numbers in a given range [L, R]
In this article, we will explain how to find the greatest divisor that divides all the natural numbers in a given range [L, R]. The task is to identify the largest number that can divide every number between L and R, including both L and R. For example, in the range [6, 9] (which includes 6, 7, 8, and 9), the GCD is 1 because no number greater than 1 divides all of them. Now, let's go through the steps to solve this problem. Approach to Solve the Problem To solve this problem, we can follow these steps: ...
Read MoreSorting strings with decimal points in C++
A string containing decimal points is sorted to solve complex programming problems. This question was asked in the Accenture coding assessment in 2025. In C++, there are different ways to sort such strings efficiently. In this article, we are going to discuss various approaches to sorting strings that contain decimal points using C++. How to Sort Strings with Decimal Points? In this problem, we are given an array of strings, where each string represents a decimal number. The goal is to sort these strings in increasing numerical order while ensuring the correct handling of decimal values. Example 1 ...
Read MoreSorting an array of binary values - C++
Sorting an array of binary values (0s and 1s) is a common problem in programming. In C++, there are multiple ways to efficiently sort an array containing only 0s and 1s. In this article, we are going to learn various approaches to sorting an array of binary values using C++. How to Sort an Array of Binary Values? In this problem, we are given an array that consists of only 0s and 1s. The task is to sort the array in ascending order, which means all 0s should come before all 1s. Example 1 ...
Read MoreFirst and last position of an element in a sorted array in C++
The first and last position of any element in a sorted array is a common operation in the world of programming. In C++, there are multiple ways to find the first and last position of an element in a sorted array. In this article, we are going to discuss various approaches for finding the first and last occurrence of an element in a sorted array using C++. How to Find the First and Last Position of an Element? In this problem, we are given a sorted array and a target element. We need to find the first and last ...
Read MoreC++ Program to Rotate Array Right by One Position
Rotating an array means shifting its elements in a specific direction while maintaining their relative order. In this article, we will rotate an array right by one position using C++. For example, if the array is {4, 8, 15, 16, 23}, rotating it right once will result in {23, 4, 8, 15, 16}. We are given an array and need to shift all elements one step to the right, with the last element moving to the first position. Example 1 Input:array = {10, 20, 30, 40, 50} Output:array = {50, 10, ...
Read MoreC++ Program to Create Custom Exception
In this article, we learn to create custom-made, user−defined exceptions in C++. Exceptions are a core concept of C++. They occur when an unwanted or impossible operation occurs during execution. Handling these unwanted or impossible operations is known as exception handling in C++. What is Exception Handling? Exception handling is mainly done using three specific keywords: ' try’, ‘catch’, and ‘throw’. The ‘try’ keyword is used to execute code that may encounter an exception, the ‘catch’ keyword is used to handle such exceptions, and the ‘throws’ keyword is used to create an exception. Exception Types Exceptions in C++ can be divided ...
Read MoreC++ Program to Count the Sum of Numbers in a String
In this problem, we are given a string containing alphanumeric characters, and the task is to extract all the numbers from the string and compute their sum. The numbers may appear anywhere within the string, and we need to identify them and add them together. In this article, we are going to explore different approaches to solving this problem in C++.Example 1Input: str = "anshu123ayush45anshu"Output: Sum = 174Explanation:The numbers extracted from the string are 123, 45, and 6. Their sum is 123 + 45 + 6 = 174.Example 2Input: str = "1abc2def34ghi56jkl"Output: Sum = 93Explanation:The numbers extracted from the string ...
Read MoreCheck if given four points form a square using C++
A square is a four-sided polygon with all sides equal and all angles equal to 90 degrees. In computational geometry, determining whether four given points form a square is a common problem. In this article, we will discuss multiple approaches to check whether four given points in a 2D plane form a square using C++. When can a four-sided polygon be called a Square? If we are given four points, we have to determine whether it is a square or not. To determine if four points (A, B, C, D) form a square, the given conditions below must be satisfied: ...
Read MoreC++ program to calculate area of circle
The area of a circle is a fundamental mathematical concept that can be easily calculated using a simple formula. In C++, there are multiple ways to find the area of a circle. In this article, we are going to discuss various approaches to calculating the area of a circle in C++. How to Find the Area of a Circle? The formula for finding the area of a circle with a given radius r is: Area = π × r × r Example 1 Input: r = 5 Output: 78.54 Explanation: ...
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