01 2021 档案

摘要：题目如下： Given two positive integers n and k, the binary string Sn is formed as follows: S1 = "0" Si = Si-1 + "1" + reverse(invert(Si-1)) for i > 1 Where 阅读全文

摘要：题目如下： Given a string s and an array of integers cost where cost[i] is the cost of deleting the ith character in s. Return the minimum cost of deletion 阅读全文