摘要：
Get The Treasury 题目链接 http://acm.hdu.edu.cn/showproblem.php?pid=3642 Problem Description Jack knows that there is a great underground treasury in a se 阅读全文
摘要：
F Planting Trees 题目链接 https://ac.nowcoder.com/acm/contest/883/F 题目描述 The semester is finally over and the summer holiday is coming. However, as part o 阅读全文