Posts Tagged Structura

Structurile de date Stiva si Coada in C++

Stiva este o structura de date logica, implementarea sa din punct de vedere fizic fiind realizata prin utilizarea altor structuri de date.
Elementele componente ale structurii de tip stiva sunt de acelasi tip, ceea ce inseamna ca stiva este o structura de date omogena.
Exista doua operatii de baza cu structura de tip stiva: adaugarea si extragerea unui element. Modalitatea de implementare a operatiilor este data de disciplina de acces: LIFO – Last In First Out. Toate inserarile (push) si extragerile (pop) sunt realizate la acelasi capat al structurii de implementare, denumit varful stivei.
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How to: Implement a Sparse Matrix Data Structure in C++ Using Simple Linked List

The storage structures for sparse matrixes are presented at [...].
The simply linked list is a linear data structure, formed by elements called nodes. A node is composed by two categories of fields:

  • The field with the information necessary for processing;
  • The field with the information for connecting with the successor node in the simply linked list type structure; it is defined as a pointer to the structure of the node in order to retain the address of the next node in the simply linked list.

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How to: Implement Sparse Matrix Data Structure in C++ Using Array

The sparse matrix represents a special type of two-dimensional array consisting of a large number of elements from out of which a very high proportion is occupied by null elements. Thus, the classical declaration of a two-dimensional array in the C++ programming language leads to unnecessary use of memory by storing null values and of the processing capacity.
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Implementarea structurii de date Matrice Rara in C++ utilizand lista simplu inlantuita

Structurile de stocare a matricelor rare sunt prezentate la [...].
Lista simpla este o structura de date liniara, formata din elemente denumite noduri. Un nod este compus din doua categorii de campuri:

  • Campul cu informatia necesara prelucrarii;
  • Campul cu informatia de legatura cu nodul succesor in cadrul structurii de tip lista simpla; se defineste sub forma de pointer catre structura nodului pentru a retine adresa nodului care urmeaza in cadrul listei simple.

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Implementarea structurii de date Matrice Rara in C++ utilizand masive de date

Matricea rara reprezinta in tip special de masiv dimensional format dintr-un numar foarte mare de elemente din care o pondere foarte mare o ocupa elementele nule. Astfel, declararea clasica a unui masiv bidimensional in limbajul C++ conduce la utilizarea inutila a memoriei prin stocarea valorilor nule si a capacitatii de procesare.
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Definirea relatiilor intre tabelele unei baze de date in VB.NET

Se considera tabelul ANGAJATI cu structura definita la [...]. Tabelul este inclus intr-o baza de date construita in VB.NET la [...], avand denumirea Ang.
Definirea unei relatii intre tabelele bazei de date presupune existenta a cel putin doua tabele. In baza de date Angajati.sdf, se adauga tabelul AccessAng prin care se defineste tipul de acces la resursele materiale, financiare si informationale ale organizatiei.

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How to: Create a VB.NET Solution with Visual Studio 2008

A software application developed in VB.NET language is built into a VB.NET solution.
A VB.NET solution consists of one or more projects.
A project VB.NET generates one or more fundamental installation units exe, dll.
An installation unit is generated from one or more source files.

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How to: Create the Structure of a Table Using Design View in Microsoft Access 2003

Creating a table using Design View in Access 2003 consists in explicit defining the data types [...] associated to the fields and their properties.
TableĀ EMPLOYEES is considered, having the following structure: IDAng, DenDep, Nume, Pren, Functia, AdrEmail, TelInt, Adresa, Loc, Jud, CodPost, TelAcs, TelJob, DataNast, DataAng, Obs.

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Crearea unei baze de date in VB.NET

Baza de date este un termen ce desemneaza un fisier structurat, creat in vederea stocarii si administrarii datelor. Administrarea datelor in baze de date vizeaza operatii precum: regasirea, sortarea, gruparea si relationarea datelor.
Stocarea si administrarea datelor se realizeaza prin intermediul sistemelor de gestiune a bazelor de date SGBD. Un exemplu de astfel de SGBD este SQL Server. Mai mult, acesta este un SGBD Relational.

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Definirea procedurilor de tip proprietate in VB.NET

In VB.NET, procedura proprietate reprezinta secventa de cod sursa de manipulare a unei caracteristici intr-un modul [...], clasa de obiecte [...] sau structura [...].
VB.NET pune la dispozitie urmatoarele proceduri de tip proprietate:

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