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Articles by Arnab Chakraborty
Page 7 of 377
C++ Program to Update value of Dictionary using key
Many computer languages provide dictionaries, which are a type of data structure. A dictionary is one type of faster data structure that stores data based on keys and values. It retains the key−value combination there so that the keys can easily search for certain components in almost real time. The C++ STL language standard includes a dictionaries−like data structure. The term "map" is used to describe this data structure. The map creates a pair of keys and values of any type (since we are using C++, the type must be defined before compilation). This section will demonstrate how to update ...
Read MoreC++ Program to Replace Elements in a Dictionary
As a form of data structure, dictionaries are a common choice in different computer languages. One kind of quicker data structure for storing data with keys and values is a dictionary. For the keys to quickly search for certain components in almost real-time, it retains the key-value combination there. A data structure that resembles dictionaries is part of the C++ STL language standard. This data structure is referred to as a "map". The map generates a pair of keys and values of any type (the type must be defined before compilation as we are using C++). This section will demonstrate ...
Read MoreC++ Program to Print a Dictionary
Maps are a special type of container in C++ where each element is a pair of two values, the key value and the mapped value. The key value is used to index each item, and the mapped values are the values associated with the keys. The keys are always unique, regardless of whether the mapped values are. To print a map element in C++, we have to use iterators. One element in a group of items is indicated by an iterator object. Iterators primarily work with arrays and other types of containers, such as vectors, and they have a specific ...
Read MoreC++ Program to Iterate Over a Dictionary
Although C++ lacks dictionaries, it does have a structure akin to them called a map. Two values−key and mapped values−are contained in each entry of a map. Each item is indexed using the key value, whereas the mapped values are the values connected to the keys. The mapped values may or may not be unique, but the keys are always unique. In this tutorial, we'll look at iterators and how they work with maps. Iterators in C++ An iterator object points to one element in a range of elements. Iterators are generally used with arrays and containers like vectors and ...
Read MoreC++ Program to Create a Dictionary with a Dictionary Literal
Dictionaries aren’t present in C++, but it has a similar structure called map. Each entry of a map has a couple of values in it, which are key and mapped values. The key value is used for indexing each entry, whereas the mapped values are the values that are associated with the keys. Keys are unique, but the mapped values may or may not be unique. In this article, we take a look at how to initialize a map object and create it from another map object. Creating an empty map To create a map object, we need to import ...
Read MoreC++ Program to Create an Empty Dictionary
A map is a data structure in C++ and can be found in the STL class std::map. It is similar to the dictionaries that we see in Python. Each entry in a map object has a pair of values, one of which is the key value and the other is the mapped value. An entry on the map is found and uniquely identified using the key value. The key value in a map must always be unique, but the mapped value is not required to be. In this article, we focus on creating an empty map object. Creating an ...
Read MoreC++ Program to Print Square Star Pattern
Designing patterns using special characters like stars (asterisks) is one of the most common types of programs to understand looping concepts. There are plenty of other star pattern programs which are very common in nature. The star pyramid is fairly simple but much more effective to understand looping statements and their conditions. In this article, we will see how to display a square pattern using stars in C++. Initially the complete square and then the hollow square. Displaying Complete Square Pattern * * * * * * * * * * * * * * * * * * * ...
Read MoreC++ Program to Print Upward Triangle Star Pattern
When learning programming, displaying a star pattern makes looping concepts easier to get. The star patterns are various designs that use asterisks to create hard or hollow triangles or diamond forms. This article will demonstrate a C++ implementation for an upward triangle that is center-aligned. The following table will contain the logic we create to print stars. The following table can help us understand. * * * * * * * * * * * * * * * ...
Read MoreC++ Program to Print Mirror Upper Star Triangle Pattern
When learning programming, displaying a star pattern makes looping concepts easier to comprehend. The star patterns are various designs that use asterisks to create hard or hollow triangles or diamond forms. This article will demonstrate a C++ right-aligned mirrored upper triangle pattern. The following table will contain the logic we create to print stars. The following table can help us understand. * * * * * * * * * * * * * * * * * * * ...
Read MoreC++ Program to delete an item from the array without using the library function
The purpose of an array is to provide access to the same type of data across several memory locations via base addresses and indexes. In a wide variety of applications, arrays are used to store data for a wide range of reasons. The array must efficiently handle adding, removing, and updating elements, just like other data structures. Both static and dynamic arrays include a number of library functions in C++ that handle various array-related operations. But in this article, we will see how to delete an element from an array without using any library functions in C++. Understanding the concept ...
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