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Articles by Arnab Chakraborty
Page 311 of 377
C++ Program to add an element in the array at the beginning
The storage of homogenous (same) data across several memory locations is made possible by the use of arrays and data structures. The key benefit of using arrays is that we can use the index argument to retrieve them from anywhere we want. This data structure becomes linear because data must be inserted and withdrawn progressively. All we need to do is place the index or position number for that element inside the square bracket to retrieve it from the array. In this article, we will take array A and another element e. We will insert e into A at the ...
Read MoreC++ Program to find the common elements from two arrays
The usage of arrays, and data structures, allows for the storage of homogeneous (same) data over several memory locations. The main advantage of using arrays is that we can access them from anywhere we want by using the index argument. The fact that data must be added and removed sequentially transforms this data structure into a linear one. To retrieve an element from an array, all we need to do is use the index or position number for that element inside the square bracket. In this article, we will take two arrays and find only the common elements present in ...
Read MoreC++ Program to get the last given number of items from the array
Arrays are specialized data structures that are used to retain homogenous (similar) data in a series of memory regions. The key benefit of using arrays is that we can use the index parameter to access them from anywhere we want. However, sequential operations are required to insert and delete data, which turns this data structure into a linear data structure. We can simply utilise the index or position number for that element inside the square bracket alone to fetch it from an array. This article will demonstrate how to read the most recent k numbers from an array in C++. ...
Read MoreC++ Program to get the first given number of items from the array
Arrays are special data structures which are used to store or hold similar kind of data (homogeneous data) in consecutive memory locations. The great advantage of using arrays is that, we can access them from any location we want using the index parameter. But to insert and delete it needs sequential operations which makes this data structure a linear data structure. To retrieve an element from array, we can simply use the index or the position number for that element inside the square bracket only. In this article we will see how we can read first k given numbers from ...
Read MoreC++ Program to get the subarray from an array using a specified range of indices
A sequence of memory sections is used to store homogeneous data in an array, a linear sequential data structure. Similar to other data structures, an array needs to have specific qualities to insert, delete, traverse, and update elements efficiently. In C++, our arrays are static. There are also a few dynamic array structures available in C++. In this article, we will see how to get a subarray from a bigger array using starting and ending indices in C++. Understanding the concept with examples Given array A = [10, 14, 65, 85, 96, 12, 35, 74, 69] Given two indices 2 ...
Read MoreC++ Program to push an array into another array
A linear sequential data structure called an array is used to store homogeneous data in a series of memory regions. An array needs to have certain features to insert, delete, traverse, and update elements effectively, just like other data structures do. Our arrays in C++ are static. In addition, C++ offers a few dynamic array structures. There may be a maximum of Z elements that can be stored inside a static array. And there are currently n elements in it. In this article, we will see how to push the elements of one array inside another array in C++. Understanding ...
Read MoreC++ Program to Access private members of a class
Private members of a class are only accessed by the members of the class. This is done to preserve the object-oriented paradigm encapsulation, which ensures data and its related functions are kept in one unit and only accessible only from a member of that class. C++ has three different access specifiers to specify the visibility of the members of a class. The three access specifiers are − Public − If a member of a class has the visibility public, then the members can be accessed from any other class. Private − Class members having private visibility can be accessed from ...
Read MoreC++ Program to Show Use of This Keyword in Class
The ‘this’ keyword in C++ is very important and it is used in multiple use cases. The ‘this’ keyword or the ‘this’ pointer is used as an implicit object parameter when an object’s member function is called and refers to the invoking object. We take a look at the different use cases of the ‘this’ keyword. Syntax The ‘this’ keyword is used in the following way this->variable_name; Use Case 1: Resolving Variable Shadowing Variable shadowing is a very common use case for the ‘this’ pointer. Variable shadowing occurs when a class member variable and another parameter ...
Read MoreC++ Program to calculate the logarithm gamma of the given number
The gamma function is described as an extension of the factorial of every given number in mathematics. The factorial, on the other hand, can only be defined for real numbers, hence the gamma function exceeds to calculate the factorial on all complex values other than negative integers. It is represented by − $$\mathrm{\Gamma \left ( x \right )=\left ( x-1 \right )!}$$ The gamma function grows quickly for higher values; hence, applying logarithm to the gamma will greatly slow it down. The natural logarithm gamma of a particular number is another name for it. In this article, we will see ...
Read MoreC++ Program to calculate the logarithm of a given number based on a given base
In almost any modern programming languages, we find the few logarithm functions like natural logs, log with base 2, log with base 10 etc. But sometimes we need to calculate logarithm with different base which are not available in the given library functions. To achieve this goal we can use simple logarithmic formula. In this article we will see how to calculate logarithm values with a given number and a given base in C++. Formula to calculate logarithm with given base Let we have taken a number x, and its base is k which is also given. The ...
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