2021年4月18日
codeforces 1513F. Swapping Problem
摘要： You are given 2 arrays a and b, both of size n. You can swap two elements in b at most once (or leave it as it is), and you are required to minimize t 阅读全文
posted @ 2021-04-18 13:43 dudw 阅读(189) 评论(0) 推荐(0)