Ujjwal Kesarwani @techie__Ujjwal
https://t.co/QuHpuns8CG CSE '27 Rashtriya Raksha University Software Developer, currently learning Generative AI Joined October 2024-
Tweets51
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Following104
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#Day30 Solved LeetCode problem 898 using an unordered set. Started learning computer networks: - Classful addressing: Classes A, B, C, D, E and drawbacks. - Public/private IP and how they are assigned. - Subnetting. #LearnInPublic #DSA #potd #networks
#Day28 Solved LeetCode problem 2411 using bit manipulation after brute force caused TLE, then took a hint. Learned about data storage in databases using B/B+ trees and their purpose. #LearnInPublic #DSA #potd
#Day27 Solved LeetCode problems: - 2044 using Bit Manipulation; Deviated from track as subset formula didn't click; realized when it starts going lengthy. - 12 Integer to Roman #LearnInPublic #DSA #potd
#Day26 Solved LeetCode problems: - 2210 using pointers #potd - 13 Roman to Int using unordererd map #LearnInPublic #DSA
#Day25 Learned about Databases: - Records in DB File: Fixed Length Record, Variable Length Record - Record Organization in DB file: unspanned org, spanned org - Access Cost with / without indexing for ordered / unordered fields #LearnInPublic #DSA #letsconnect #Database
#Day24 - Solved LeetCode problem 2322 using graph, DFS, and XOR method; learned a new optimized method for finding ancestors. - Fixed some security bugs in the secure share website. #LearnInPublic #DSA #letsconnect
#Day23 - Solved LeetCode problem 1717 using a greedy approach. - Submitted 3 problems in CodeChef Contest START196, started 30 minutes late, missed 4th by 3 minutes due to optimization issues causing TLE. - Tried DAST using OWASP ZAP. #LearnInPublic #DSA
#Day22 Solved LeetCode problems: - 451 using comparator sort + map - 1695 using sliding window, initially tried recursion but TLE - 1957 using greedy Learned about: - Lambda function in C++ - Multimap, similar to map, allows multiple elements with the same key #LearnInPublic #DSA
#Day21 Researched restricting screenshots but found no solid method, as tools like Snipping Tool operate at the OS level, capturing the screen buffer's visual state. JavaScript detects window focus loss and applies a black screen only after the screenshot is taken. #buildinpublic
#Day21 Researched restricting screenshots but found no solid method, as tools like Snipping Tool operate at the OS level, capturing the screen buffer's visual state. JavaScript detects window focus loss and applies a black screen only after the screenshot is taken. #buildinpublic
#Day19-20 Successfully deployed my Secret Share project, but it needs security features like screenshot restriction. Comment to help with screenshot restriction and suggest features to enhance reliability Link: secret-share-zeta.vercel.app #buildinpublic #WebDev #SecureCoding #privacy
#Day18 Attended Secure SDLC training. Learned C++ and JavaScript coding standards. Started developing a secure website with end-to-end encryption, allowing users to send messages or files via a view-once link. #buildinpublic #WebDev #SecureCoding #privacy #security #tech
#Day17 Attended Secure SDLC training. Learned: - Threat Modeling: Structured approach to identify and mitigate security threats in software design for early vulnerability detection. - STRIDE methodology: Framework for categorizing potential threats. #LearnInPublic #SecureCoding
#Day16 Attended Secure SDLC training. Learned about HashiCorp Vault: - Centralized, secure secrets mgmt. system. - Uses policies and roles to control access to secrets. - Logs all secret access. - Provides encryption as a service. #LearnInPublic #SecureCoding #SoftwareDevelopment
#Day15 Solved LeetCode Problem: -8 String to Integer (Recursion + Greedy) Attended Secure SDLC training Learned about: - CIA Triad, Authentication, Authorization - Working of TLS Protocol for confidentiality and integrity - Digital certificates #LearnInPublic #DSA #CyberSecurity
Taking a short break from posting my daily learnings after 14 days of consistency. Off on an adventure for a few days! Excited to soak up new experiences and insights. Catch you all later with fresh stories! #fun #enjoylife #trip
#Day14 Solved LeetCode Problem: - 796 Rotate String Learned about: -ConversationBufferMemory: retains all prior convos -ConversationChain: recalls last 10-20 interactions -ConversationBufferWindowMemory: sets input to recall the most recent conversation #LearnInPublic #DSA #AI
#Day13 Solved LeetCode Problem: - 205 Isomorphic Strings (hash map) Learned: Explored agents: how LLMs decide, observe outcomes, and iterate for optimal results Studied memory: how models retain and use past information to enhance responses #LearnInPublic #DSA #AI #buildinpublic
#Day12 Solved LeetCode Problems: - 14 LCP (Sort) - 1903 Large Odd Num (Greedy) Learned about LangChain chains: - SimpleSequentialChain combines chains, passing output from one PromptTemplate to the next. - SSC shows last input info; SequentialChain shows all #LearnInPublic #DSA
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