摘要:
2020杭电多校6,HDU- 6830- Asteroid in Love (几何,凸包) Problem Description During the summer vacation, the geoscience community launched a constellation observ 阅读全文
摘要:
杭电多校03 HDU-6765 Count on a Tree II Striking Back(概率论,树链剖分) Problem Description You are given a tree with n nodes. The tree nodes are numbered from 1 t 阅读全文
摘要:
[2018-2019, ICPC, Asia Yokohama Regional Contest 2018] Problem G-What Goes Up Must Come Down 题面: Several cards with numbers printed on them are lined 阅读全文
摘要:
HDU-6767 New Equipments (最小费用最大流,费用流) Problem Description Little Q's factory recently purchased m pieces of new equipment, labeled by 1,2,…,m. There a 阅读全文
摘要:
HDU-6793 - Tokitsukaze and Colorful Tree (dfs序列,树状数组,离线) 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=6793 题面: 思路: 首先分析答案的计算公式: node v is not an anc 阅读全文