So, you’ve got a HackerRank test coming up, huh? It’s pretty common these days, with lots of companies using it to see if you can code. It can feel a bit daunting, but honestly, it’s just another ...

You are given a valid XML document, and you have to print its score. The score is calculated by the sum of the score of each element. For any element, the score is equal to the number of attributes it ...

So, you want to get better at Python, huh? It’s a popular language, and for good reason. Whether you’re just starting out or trying to level up your skills, finding good places to practice is key.

Getting prepared for an AI interview is a challenging yet rewarding experience. As AI continues to progress, companies want candidates who are not only theoretically strong but also practically geared ...

# print(bool(re.match(r'^[-+]?[0-9]*\.[0-9]+$', input()))) # print(bool(re.search(r'^[+-]?\d{0,}\.\d{1,}$',input()))) print(bool(re.match(r'^[-+]?\d*\.\d+$', input()))) ...