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In this post i'm gone explain liked list an famous leetcode problem that is " Remove Nodes from linked list ". Problem Statement: You are given the head of a linked list. Remove every node which has a node with a greater value anywhere to the right side of it. Return the head of the modified linked list. Example 1: Input: head = [5,2,13,3,8] Output: [13,8] Explanation: The nodes that should be removed are 5, 2 and 3. Node 13 is to the right of node 5. Node 13 is to the right of node 2. Node 8 is to the right of node 3. Explanation: In this problem statement state that remove the nodes which have the right side (any place) element greater than. let's understand with given example. Node 13 is the right side of the 5,2 nodes thats why 2,5 should be remove. Node 8 is the right side of 3 node thats why 3 should be remove. final result would be [13,8] Solution of the problem: `/** * Definition for singly-linked list. * function ListNode(val, next) { * this.val = (val===undefined ? 0 : val) * this.next = (next===undefined ? null : next) * } */ /** * @param {ListNode} head * @return {ListNode} */ const reverList = function(head){ let prev = null; let curr = head; let next = null; while(curr!=null){ next = curr.next; curr.next = prev; prev = curr; curr = next; } return prev; } var removeNodes = function(head) { // reverse list let reversList = reverList(head); let maxNode = reversList; let prevNode = reversList; let currNode = reversList.next; // removed list while(currNode != null){ if(maxNode.val > currNode.val){ currNode = currNode.next; }else{ maxNode = currNode; prevNode.next = currNode; prevNode = prevNode.next; currNode = currNode.next; } } prevNode.next = null; // reverse list return reverList(reversList); };` If you have any query or suggestions leave your expression👨🏿‍💻🙌.

c_std: A Leak-Free, Cross-Platform Standard Library for Modern C Bringing the comfort of the C++ STL and Python's standard library to C17 — without leaving C A technical white paper. Executive summary C is still the substrate of the computing world — kernels, databases, language runtimes, embedded firmware, and the inner loops of nearly everything else. Yet the moment you step away from the kernel and try to write ordinary application code in C, you feel the gap: no growable vector, no hash map, no JSON parser, no string type that doesn't invite a buffer overflow. You either pull in a grab-bag of mismatched third-party libraries, each with its own conventions and failure modes, or you re-implement the same dynamic array for the hundredth time. c_std is an attempt to close that gap deliberately and coherently. It is a single, consistent library — written in pure C17 — that reimplements a large slice of the C++ Standard Library (containers, algorithms, smart pointers) alongside many Python-style conveniences ( json , regex , random , statistics , csv , config , even turtle graphics). It targets Windows and Linux from one source tree, compiles cleanly under -Wall -Wextra , and — this is the part I care about most — is verified leak-free under Valgrind , module by module, example by example. This paper explains the design philosophy, the architecture, and the engineering discipline that makes a library like this trustworthy enough to build on. 1. The problem: C's missing middle Every C programmer knows the two extremes. At the bottom, the language itself: pointers, malloc , memcpy , raw arrays. At the top, whatever the platform hands you — <windows.h> or POSIX, OpenSSL, a JSON library someone wrapped a decade ago. The middle — the layer the C++ STL and Python's batteries-included standard library occupy — is missing. That missing middle has a real cost. It shows up as: Re-invention. Teams write their own vector, their own string builder, their own linked list, each subt

Interesting engineering write-up from Netflix on maintaining a real-time service topology in a large microservices ecosystem. The takeaway for me: observability isn't just about metrics, traces, and logs—understanding service relationships is equally critical as systems scale. Curious how others approach dependency mapping in production environments. https://netflixtechblog.com/from-silos-to-service-topology-why-netflix-built-a-real-time-service-map-0165ba13a7bc submitted by /u/mukeshsri369 [link] [留言]

Here's what we read and liked this week.

The new owner, Integrated Media Company, also owns Fandom, Gamespot and metacritic

A group of 20 Snap alumni has come together to launch a fund called Ghost Angels to back the next generation of social media.

The Kane Parsons' film Backrooms is expected to earn up to $90 million in its opening weekend after pulling down $38 million on Friday alone. That's not only above expectations, but absolutely obliterates A24's previous opening weekend record of $25.5 million for Alex Garland's Civil War. It's also a better opening day than The Mandalorian […]

Marcia Lucas, who edited 'Star Wars' and 'Return of the Jedi,' has died at 80.

The golden age of Microsoft's Github Copilot appears to be at an end.

This week's science news.

Cecil Baldwin's résumé includes appearances on Gravity Falls, narrating the documentary Scream, Queen! My Nightmare on Elm Street, and performing as part of the New York Neo-Futurists theater company. But he is best known as the host of the podcast Welcome to Night Vale, a long-running fiction show that blends macabre Lovecraftian horror with absurdist […]

Meta seems to be making big bets on AI-powered hardware.

Event sourcing gets sold on immutability. You don't update, you don't delete, you only append, so the history is permanent. It mostly isn't. The events are immutable because your code agrees not to touch them, not because anything actually stops it. Underneath they're still rows in Postgres, and rows have a DBA with write access. A migration that "cleans up" old data. A 2 a.m. query run against the wrong connection. A backup restored with slightly different bytes in it. Change one of those rows and a replay won't blink. The aggregate rebuilds, the projections rebuild, everything looks fine. Usually the first person to notice is a customer whose balance is off, and by then the trail is cold. Chain each event into the next The trick is small. Give every row two extra columns: a hash of its contents, and the hash of the row before it. #1 AccountOpened prev=00000… hash=70be4f… │ ▼ #2 AmountDeposited prev=70be4f… hash=796018… │ ▼ #3 AmountWithdrawn prev=796018… hash=6a0260… The hash is SHA-256(previousHash || json(payload)) . Nothing exotic. The point is that each hash depends on the one before it. Edit a payload and its hash stops matching. Rewrite that hash to cover for the edit, and now the next row's pointer is wrong. You can't fix one without breaking the next. About forty lines of it Appending an event hashes it together with the previous one: public HashChainedEntry Append ( object payload ) { var previousHash = _entries . Count == 0 ? GenesisHash : _entries [^ 1 ]. Hash ; var hash = ComputeHash ( previousHash , payload ); var entry = new HashChainedEntry ( _entries . Count + 1 , payload , previousHash , hash ); _entries . Add ( entry ); return entry ; } internal static byte [] ComputeHash ( byte [] previousHash , object payload ) { var payloadJson = JsonSerializer . SerializeToUtf8Bytes ( payload , payload . GetType ()); var combined = new byte [ previousHash . Length + payloadJson . Length ]; Buffer . BlockCopy ( previousHash , 0 , combined , 0 , previousHash .

It’s hard to believe how quickly the tech landscape is evolving, especially with AI/ML at the forefront. Just the other day, I had the chance to attend the Mistral AI Now Summit, and wow, what an experience! I walked in with a notebook full of questions and a mind buzzing with curiosity. I left with a treasure trove of insights, a few new friends, and even more questions. Ever wondered what it’s like to dive deep into the world of AI with some of the brightest minds? Let me take you on a journey through my day at the summit and the lessons I picked up along the way. A New Era of AI Walking into the venue felt electric. The air was thick with excitement, and the buzz was palpable. I’ve been exploring AI for a few years now, and it feels like we’re at the cusp of something monumental. Mistral’s focus on open-weight models really got me thinking. What if we could democratize AI further? Imagine a world where innovation isn't locked behind corporate walls but accessible to everyone. I remember a speaker discussing how open models can help small startups compete against big players. It hit home because I’ve been that small developer trying to fight the good fight. Real-World Applications One of the discussions that resonated with me was about real-world applications of large language models (LLMs). I’ve dabbled in a few projects where I used Hugging Face's Transformers library to create chatbots, but hearing actual use cases from businesses was enlightening. For instance, a startup shared how they used a fine-tuned model to improve customer service response times by 50%. Can you imagine the time and money saved? It got me thinking about how I could implement something similar in my own projects. Here’s a quick code snippet that I’ve found useful when fine-tuning a model for a chatbot: from transformers import Trainer , TrainingArguments training_args = TrainingArguments ( output_dir = " ./results " , evaluation_strategy = " epoch " , learning_rate = 2e-5 , per_device_tra

Gemini Spark helps automate everyday tasks, from inbox summaries to local event planning, but it’s unclear why Google made it a separate product.

This is a sanitized engineering note about server-side audio noise reduction for WebRTC calls. Source article: https://www.lodan.me/posts/server-side-webrtc-noise-reduction-pion-ffmpeg-rnn/ What the prototype tests The goal is not to replace WebRTC's built-in audio processing. The narrower test is: receive a WebRTC Opus track with Pion read RTP packets in OnTrack decode Opus payloads to PCM pipe raw PCM into FFmpeg apply the arnndn RNN noise reduction filter validate the output as a file before considering real-time forwarding Why this boundary matters RTP, Opus, PCM, and FFmpeg raw audio input are different boundaries. If the PCM format is wrong, FFmpeg may still produce a file, but the result should not be trusted. For example, if the Go side writes int16 PCM, the FFmpeg input format should be reviewed as s16le , not casually treated as s32le . Production concerns The prototype is useful because it isolates the audio path, but production use needs more work: buffering and latency CPU and memory isolation FFmpeg process lifecycle model choice packet loss and jitter RTP timestamps audio/video sync whether the processed audio is returned to WebRTC or only recorded The full article has diagrams and the longer explanation: https://www.lodan.me/posts/server-side-webrtc-noise-reduction-pion-ffmpeg-rnn/

Microsoft is facing criticism for its handling of zero-day exploits. Someone going by the name Nightmare Eclipse has been publicly feuding with the company, posting proof-of-concept exploit code. Some of their posts suggest that they're a disgruntled former employee. But what caught cyber security researcher Kevin Beaumont's eye was how Microsoft has responded. Microsoft suggests […]

I have an ECCV paper main conf. Can I submit the same to a workshop at some other place happening before ECCV? The other workshop (non archival) will be after the final decisions of eccv come. Under any result in eccv- acceptance or rejection, how will this affect it? Im not the main author at eccv. Workshop is women event and I submitted the abstract for the workshop. How do things work here, educate me pls. submitted by /u/Active-Tip3130 [link] [留言]

Art TVs aren’t exactly known for being affordable, which is why Woot’s latest sale is notable. Now through June 26th, the retailer is discounting Samsung’s 2025 Frame TV and Hisense’s 2025 CanvasTV. The 65-inch CanvasTV is down to $779.99 ($520 off) — its best price of the year — while Samsung’s like-minded Frame TV is […]

Inspired by a question on r/haskellquestions , i wrote about the practical aspect of monads for people at a beginner / intermediate level, about how to go beyond mere understanding the monad class. I try to highlight how we use monads to structure our code, what benefits they bring, and how to reason about them. it comes with exercises! submitted by /u/nicuveo [link] [留言]