https://zhijiexia.dev Technical blog about LeetCode, CUDA, reinforcement learning, DevOps, and competitive programming. en https://zhijiexia.dev/posts/verl-problem https://zhijiexia.dev/posts/verl-problem Sat, 01 Nov 2025 00:00:00 GMT Addressing off-policy training challenges in VERL for reinforcement learning with LLMs. https://zhijiexia.dev/posts/cutlass_cuda https://zhijiexia.dev/posts/cutlass_cuda Sun, 29 Sep 2024 00:00:00 GMT A deep dive into CUDA matrix multiplication and how CUTLASS optimizes GPU kernels. https://zhijiexia.dev/posts/CPSC-599-Competitive-Programming https://zhijiexia.dev/posts/CPSC-599-Competitive-Programming Mon, 08 Jan 2024 00:00:00 GMT Course notes and problem-solving strategies from CPSC 599 Competitive Programming at the University of Calgary. https://zhijiexia.dev/posts/2023-09 https://zhijiexia.dev/posts/2023-09 Wed, 27 Sep 2023 00:00:00 GMT Working through the Grind 75 LeetCode problems in Python during September 2023. https://zhijiexia.dev/posts/tmux https://zhijiexia.dev/posts/tmux Mon, 21 Aug 2023 00:00:00 GMT A quick reference guide and crash course on using tmux for terminal multiplexing. https://zhijiexia.dev/posts/2023-02 https://zhijiexia.dev/posts/2023-02 Sat, 25 Feb 2023 00:00:00 GMT Daily LeetCode problems solved in C++ and Rust throughout February 2023. https://zhijiexia.dev/posts/AoC-2022 https://zhijiexia.dev/posts/AoC-2022 Wed, 22 Feb 2023 00:00:00 GMT My solutions and walkthroughs for Advent of Code 2022 challenges. https://zhijiexia.dev/posts/2023-01 https://zhijiexia.dev/posts/2023-01 Tue, 31 Jan 2023 00:00:00 GMT Daily LeetCode problems solved in Rust and C++ throughout January 2023. https://zhijiexia.dev/posts/hello-world https://zhijiexia.dev/posts/hello-world Thu, 29 Dec 2022 00:00:00 GMT Welcome to my newly redesigned personal developer blog built with NextJS.