## HashCash - crypto currencies' algorithm

Introduction At the moment of writting this post, Bitcoin just hit $60,000 with a market cap over 1 ...

Introduction At the moment of writting this post, Bitcoin just hit $60,000 with a market cap over 1 ...

Problem Just curious about how ATM works. Example, we provide it set of denominations {10k, 20k, 50k ...

Edit Distance Given two words word1 and word2, find the minimum number of operations required to co ...

K Closest Points to Origin We have a list of points on the plane. Find the K closest points to the ...

Course Schedule There are a total of numCourses courses you have to take, labeled from 0 to numCour ...

Counting Bits Given a non negative integer number num. For every numbers i in the range 0 ≤ i ≤ num ...

Possible Bipartition Given a set of N people (numbered 1, 2, ..., N), we would like to split everyo ...

Contiguous Array Given a binary array, find the maximum length of a contiguous subarray with equal ...