摘要:
Count Special Integers We call a positive integer special if all of its digits are distinct. Given a positive integer $n$, return the number of specia 阅读全文
摘要:
Construct Smallest Number From DI String You are given a 0-indexed string pattern of length n consisting of the characters 'I' meaning increasing and 阅读全文
摘要:
Max Chunks To Make Sorted II You are given an integer array arr. We split arr into some number of chunks (i.e., partitions), and individually sort eac 阅读全文