very good， but it's not so easy to understand More

good，make hard things simple I get a detour way More

very good. But the lambda function is not easy to the new user.... More

It's the fastest possible one ,and I also use the int function. But I still think it can't make us understand the conversion between hexadecimal methods. Maybe this question want to us to use the int function More

It's amazing... but this solution can't tell us the algorithm. so it's a perfect solution, but it's not the best answer for students. More