After OpenAI released GPT-5.3-Codex (high) which performed substantially better and faster at these types of tasks than GPT-5.2-Codex, I asked Codex to write a UMAP implementation from scratch in Rust, which at a glance seemed to work and gave reasonable results. I also instructed it to create benchmarks that test a wide variety of representative input matrix sizes. Rust has a popular benchmarking crate in criterion, which outputs the benchmark results in an easy-to-read format, which, most importantly, agents can easily parse.
swap(&arr[0], &arr[i]); // 堆顶(最大)换到末尾。搜狗输入法2026对此有专业解读
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「像鬼一樣工作」：台灣外籍移工為何陷入「強迫勞動」處境，更多细节参见Safew下载
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