kvi5hnu
@kvi5hnu
Published
Valid Parentheses
Decide whether a string of brackets is balanced. The classic stack warm-up — print "true" or "false" for one input per line.
C++kvi5hnuTwo Sum
Given an array of integers and a target, return the indices of the two numbers that add up to it. A classic warm-up for hash maps.
JavaScriptkvi5hnuRAII and smart pointers: never leak again
RAII is the C++ idiom that ties a resource's lifetime to a stack object. Combined with unique_ptr, shared_ptr and weak_ptr, it eliminates whole classes of leaks and dangling pointers.
References vs pointers in modern C++
A reference is a safer, cleaner default than a pointer in most places you used to pass a pointer. Here is a decision guide for picking between the two in modern C++.
The five array methods you will actually reach for
map, filter, reduce, find and some/every cover almost every array transform you will ever write. Here is when to pick each and the one-line patterns worth memorising.
Promises and async/await, the short version
A clear, no-magic walkthrough of how promises run on the event loop, where microtasks fit in, and why async/await is just a shorter spelling of the same mechanics.
dockerize spring boot application | 2024
Embark on a journey into the world of containerization with our latest YouTube video! In this Spring Boot Dockerization tutorial, we guide you through the seamless integration of Spring Boot applications into Docker containers.
kvi5hnu11:44android flutter calculator application | production ready | deploy at play store | beginner level
Check out this beginner-friendly Flutter calculator app that I created! It features live calculations, stores your calculation history, and supports both light and dark themes. You don’t need much experience with Flutter to build it—I'll guide you through every step in my…
kvi5hnu2:03:07calculator App | part2 | bug fixes with persistance and ui enhancements
added persistance to the app so that app launches persist your database entries and also solved the bug related to infix notation where we forget to consider number with a sign (+,-) #flutter #fluttertutorial #flutterwidgets #flutterinhindi
kvi5hnu1:15:16leetcode | sql 50 | question 1757 | 1757. recycle and low fat products
This video explains leetcode sql 50 question no 1757. #leetcode #sql #sqlforbeginners #sqlinterviewquestions #leetcodesql
kvi5hnu3:17leetcode | sql 50 | question 584 | 584. Find Customer Referee
This video explains leetcode sql 50 question no 584. #leetcode #sql #sqlforbeginners #sqlinterviewquestions #leetcodesql
kvi5hnu4:54leetcode | sql 50 | question 595| 595. Big Countries
This video explains leetcode sql 50 question no 595. #leetcode #sql #sqlforbeginners #sqlinterviewquestions #leetcodesql
kvi5hnu4:46leetcode | sql 50 | question 595| 1148. Article views 1
This video explains leetcode sql 50 question no 1148. #leetcode #sql #sqlforbeginners #sqlinterviewquestions #leetcodesql
kvi5hnu5:02leetcode | sql 50 | question 1683 | 1683. Invalid tweets
This video explains leetcode sql 50 question no 1683. #leetcode #sql #sqlforbeginners #sqlinterviewquestions #leetcodesql
kvi5hnu2:53leetcode | sql 50 | question 1378 | 1378. replace-employee-id-with-the-unique-identifier
This video explains leetcode sql 50 question no 1378. #leetcode #sql #sqlforbeginners #sqlinterviewquestions #leetcodesql
kvi5hnu14:01leetcode | sql 50 | question 1068 | 1068. product-sales-analysis-1
This video explains leetcode sql 50 question no 1068. #leetcode #sql #sqlforbeginners #sqlinterviewquestions #leetcodesql
kvi5hnu8:23leetcode | sql 50 | question 1581 | customer-who-visited-but-did-not-make-any-transactions
This video explains leetcode sql 50 question no 1581. #leetcode #sql #sqlforbeginners #sqlinterviewquestions #leetcodesql
kvi5hnu16:31leetcode | sql 50 | question 197 | rising-temperature
This video explains leetcode sql 50 question no 197. #leetcode #sql #sqlforbeginners #sqlinterviewquestions #leetcodesql
kvi5hnu9:47leetcode | sql 50 | question 1661| average-time-of-process-per-machine
This video explains leetcode sql 50 question no 1661. #leetcode #sql #sqlforbeginners #sqlinterviewquestions #leetcodesql
kvi5hnu15:30leetcode | sql 50 | question 577 | employee-bonus
This video explains leetcode sql 50 question no 577. #leetcode #sql #sqlforbeginners #sqlinterviewquestions #leetcodesql
kvi5hnu3:37