You have some coins. The i-th coin has a probability prob of facing heads when tossed. Return the probability that the number of coins facing heads equals target if …
In some array arr, the values were in arithmetic progression: the values arr – arr are all equal for every 0 <= i < arr.length – 1. Then, a …
We are living in the digital age now; where most of our daily activities are posted, shared, and spread through different platforms on the net, and it’s no different …
The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Now your job is to find the total Hamming distance between …
A queue is a first-in-first-out (FIFO) data structure. We all know that the list/array in Python is very powerful, that it can be used as a queue itself. For …
A stack is a first-in-last-out (FILO) data structure. We all know that the list/array in Python is very powerful, that it can be used as a stack itself. For …
