Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
if you do it in JS ,when n>200,1!+2!+...+n!and n! are both infinity,infinity/infinity is NaN ,but I don't know how to solve it
Nice kata!!!
题描述不清啊,根本不知道空格的具体要求是什么
what is the return of 1973 0 8?