题目分析
打算去cf写写大致题解:
There might be another greedy algorithm using LIS/LDS which is more easier to make sense(it doesn't need swapping):There might be an
题目分析
打算去cf写写大致题解:
There might be another greedy algorithm using LIS/LDS which is more easier to make sense(it doesn't need swapping):There might be an