Exploring Tree Algorithms: Traversal, Search, and Height Calculation
public ArrayList<>> simplePaths(Vertex v1,Vertex v2) {
ArrayList<>>paths = new ArrayList<>>();
ArrayListpathCurr = new ArrayList();
TreeMap visits = new TreeMap();
Iterator itr = adjacencyMap.KeySet().Iterator();
while (itr.HasNext())
visits.Put (itr.Next(), false);
simplePaths(paths,(ArrayList) pathCurr.Clone(),(TreeMap) visits.Clone(),v1,v2);
return paths; }
private void simplePaths(ArrayList<>> paths, ArrayList pathCurr, TreeMap visits, Vertex current, Vertex
Circuit Switching vs. Packet Switching: Understanding Network Concepts
Circuit Switching
Circuit switching establishes a dedicated communication channel between two stations. Resources like bandwidth and switching network capacity are reserved exclusively for this connection. Once established, the transmission is transparent, as if the devices were directly connected. Circuit switching involves three phases:
- Circuit Establishment
- Data Transfer
- Circuit Disconnection
Key Points about Circuit Switching
- Operates at the physical layer.
- Requires prior resource reservation before
Computer Networks and Communications
Circuit Switching
Circuit switching establishes a dedicated communications channel between two stations. Resources are reserved for transmission, and the switching network is for the circuit’s exclusive use during the connection. The transmission is transparent because, once connected, it seems as if the devices are directly connected. Phases:
- Establishment of the circuit
- Data Transfer
- Disconnecting the circuit
Four Points to Highlight in Circuit Switching
- Circuit switching occurs at the physical level.
Introduction to Telecommunications and Data Networks
1. Communication
Definition
Communication is the act by which an individual exchanges information with another.
2. Types of Data Networks
Node
A node is any computer connected to a network.
Local Area Network (LAN)
A LAN is a computer network limited to a small geographical area, typically within a single building or floor.
Metropolitan Area Network (MAN)
A MAN interconnects multiple LANs across a larger geographical area, such as a city. For example, government buildings in Santiago might be connected by
Read MoreIntroduction to Assembly Language and Computer Architecture
Chapter 1: Introduction
Q&A
Questions
- How do assemblers and linkers work together?
- How will studying assembly language enhance your understanding of operating systems?
- What is meant by a one-to-many relationship when comparing a high-level language to machine language?
- Explain the concept of portability as it applies to programming languages.
- Is the assembly language for x86 processors the same as those for computer systems such as the Vax or Motorola 68×00?
- Give an example of an embedded systems application.
Python String and Math Functions Cheatsheet
String Related Functions
- len(str) — returns the length of ‘str’
- str.format(c) — formats. Use {:.2f} to round to 2 decimals. Always 2, even if the last digit is 0. Uses c as quantity. {:d} for integer types.
- str.upper(), str.lower() — makes uppercase, makes lowercase
- str.capitalize() — makes the first letter of a sentence uppercase
- str.replace(“a”, “b”) — substitutes each case of “a” with “b”
- str[0] — returns the first character of the string
- str.title() — makes all first letters of words uppercase
- str.