Programmer Coach

This is a cool problem that sounds very hard by becomes easy with two intuition sparks (and a little twinkle). Description I...

If the problem talks about continuous subarrays or substrings, the sliding window technique may help solve it in a linear time. Such...

The higher is the bar, the more you're expected to use dynamic programming (DP) during an interview. This technique requires a lot o...

I got this problem in the real interview, and I thought it was interesting. I used the divide and conquer paradigm and came up with a linea...

I am collecting problems that start easy and then lead to a deep conversation, touching on multiple aspects of computer science fundamentals...

I am collecting problems that start easy and then lead to a deep conversation, touching on multiple aspects of computer science fundamental...

I am collecting problems that start easy and then lead to a deep conversation, touching on multiple aspects of computer science fundamental...