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Free AI checker that detects ChatGPT, GPT-4 and Gemini text

AI flashcards, quizzes and spaced repetition for study

A roadmap linking data structures with solved coding challenges

Programming study with code review and instructor-led practice

Algorithm explanations for competitive programming

Algorithm learning through animations and runnable examples

Topic-structured coding and interview practice

GPT-powered chat analysis for conversations with a lover or ex.

Build event-driven market simulations with a shared strategy engine

Calculate returns, portfolio statistics and allocation weights in Python

Screen fundamentals, visualize metrics and export financial data

Research trading decisions with reinforcement-learning experiments

Track stock-market events with live alerts and ranked screeners

Assemble portfolio backtests from reusable Python rules

Search public trading disclosures and compare the dates behind them

Compare strategy experiments across assets, parameters and historical periods

Turn portfolio returns into charts and risk-analysis summaries

Build formula screens and examine their historical matches

Compare historical portfolios and model allocation scenarios

A coding problem bank with topic and difficulty choices

Algorithm exercises grouped into a structured problem set

Build trading algorithms with AI, backtest them, then execute on one platform.