#include <stdio.h> #include <stdlib.h> #include <time.h> #define SAMPLE_COUNT 5 int main() { srand((unsigned int)time(NULL)); for (int idx = 0; idx < SAMPLE_COUNT; ++idx) { int random_value = rand() % 100 + 1; printf("20490042%04d\n", random_value); } return 0; } This...
This article explores different approaches to finding the longest substring within a given string that contains no repeating characters. We'll examine implementations using C++ and illustrate the underlying logic. Sliding Window with unordered\_set The first approach utilizes a sliding window techni...
In application development, it's common to need a loading indicator during asynchronous operations like API requests. Consider a scenario where a user's VIP status is fetched asynchronously. Without a loading state, the UI might incorrectly show a non-VIP status initially, then switch to VIP once th...
Implementation Strategy To achieve granular visibility into network operations, developers can leverage the EventListener API provided by OkHttp. This mechanism allows for the interception of specific events during an HTTP request's lifecycle, enabling the collection of metrics such as DNS resolutio...
Managing Anaconda Environments Listing Available Environments To view all your Conda environments, use: conda env list Configuring Conda Package Sources Optimize your package downloads by adding mirrors. For example, to add Tsinghua University's mirror: conda config --add channels https://mirrors.tu...
Operators and Control Flow Java provides arithmetic, relational, bitwise, logical, assignment, and conditional (?:) operators. Program execution order is managed through sequential, branching (if, switch), and looping (for, while, do...while) structures. Arrays Creating and Initializing Arrays Decla...
Extracting JSON Values in MySQL MySQL provides several built-in methods to extract and manipulate JSON data. These techniques vary based on whether you need raw JSON values, unquoted strings, or support for dynamic paths. Basic Field Access The -> operator retrieves a value from a JSON document w...
The Routes library provides a Python implementation inspired by the Rails routing system, enabling bidirectinoal mapping between URLs and application logic. It supports clean URL design for RESTful applications by decoupling URL patterns from their corresponding handlers. In web development, definin...
EfficientViT is a family of high-speed vision transformers that trade modest accuracy loss for dramatic reductions in memory traffic and latency. The key insight is that most of the runtime in ViTs is spant on reshaping tensors and element-wise operations inside Multi-Head Self-Attention (MHSA), not...
BeautifulSoup4 Like lxml, BeautifulSoup4 is an HTML/XML parser primarily used for parsing and extracting data from HTML/XML documents. Installation: pip install bs4 Since BS4 needs a document parser to work with pages, you also need to install lxml as the parsing library. Parsing Principle - Data pa...