Convert String to Integer - atoi - Leet Code Solution
LeetCode "String to Integer (atoi)" solved step by step — whitespace, sign, digit parsing, and 32-bit overflow clamping — with full code.
The Archive of
Intentional Thought
Technical essays, architectural deep-dives, and practical guides at the intersection of code and design.
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Check whether number is palindrome or not - Leet Code Solution
Determine whether an integer is a palindrome. An integer is a palindrome when it reads the same backward as forward.
Zigzag Pattern String Conversion - Leet Code Solution
LeetCode "Zigzag Conversion" solved by simulating rows with a direction flag and per-row string buffers, with full code walkthrough.
Reverse digits of a signed integer - Leet Code Solution
LeetCode "Reverse Integer" solved by popping and pushing digits with modulo/multiply, with 32-bit overflow checks and full code walkthrough.
Longest Palindrome Substring - Leet Code Solution
Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000.
Find the Median of Two Sorted Arrays - Leet Code Solution
There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays.
How to solve java issue - could not load main class - Visual Studio Code
How to resolve the 'could not find or load main class' error when running Java in Visual Studio Code.
Solving Jboss Wildfly Oracle JDBC driver problem, with Dockerfile
How to resolve the Oracle JDBC driver problem when deploying a web application on JBoss Wildfly in Docker.
Longest Substring without repeating characters - Leet Code Solution
Given a string, find the length of the longest substring without repeating characters.
How to take Mongodb Backup and Restore
Step-by-step guide to backing up and restoring MongoDB databases using mongodump, mongorestore, and mongoimport — including remote server scenarios.
Implement a command line shell by using Command Dispatcher in Python
How to implement a command line shell using the Command Dispatcher pattern with Python decorators for extensible command handling.
Multithreading in Python, Lets clear the confusion between Multithreading and Multiprocessing
Understanding the difference between multithreading and multiprocessing in Python and when to use each for parallel execution.