The terminology used to describe the celebration commonly known as “Chinese New Year” has become a topic of debate. Some advocate for the term…
As we transition from the festive celebrations of the Chinese New Year and return to our daily routines, it’s an opportune moment to reflect…
In the rapidly evolving landscape of artificial intelligence, OpenAI has consistently been at the forefront, developing models tailored to diverse user needs. Among their…
Given two integers a and b, return the sum of the two integers without using the operators + and -. Example 1: Input: a = 1, b = 2 Output: 3…
When someone told me to use Floyd Warshall Algorithm, I immediately knew what to do. But I still don’t get the intuit when to…
I hope every lc problems I encounter in the future will be as simple as this one. Single Pass with Frequency Array
‘Node 0 must be reachable from all other nodes.’ means 0 is the root of a tree. And because we are going to remove…
