摘要:
E - Reachability from the Capital CodeForces - 999E E - Reachability from the Capital CodeForces - 999E E - Reachability from the Capital 题目链接:https:/ 阅读全文
摘要:
题目链接:You are given a string ss consisting of nn lowercase Latin letters. Polycarp wants to remove exactly kk characters (k≤nk≤n) from ... 阅读全文