All X 等比数列求和一下 A/B MOD C = A MOD (B*C) / B 或者分治一下 Sitting in Line 状压+拓扑dp dp(i, j)表示当前二进制状态为j,当前状态的最后一个数字是a[i],然后按照拓扑序dp进行更新,并用一个bool数组记录是否在队列中. 网上还有其他优美的姿势,按某种枚举方式可以达到拓扑序. #include <bits/stdc++.h> typedef long long ll; using namespace std; ], p[],…
Gym Class Time Limit: 6000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 681 Accepted Submission(s): 271 Problem Description 众所周知,度度熊喜欢各类体育活动. 今天,它终于当上了梦寐以求的体育课老师.第一次课上,它发现一个有趣的事情.在上课之前,所有同学要排成一列, 假设最开始每个人有…
原文链接:https://www.dreamwings.cn/hdu5690/2657.html All X Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 703 Accepted Submission(s): 328 Problem Description 代表一个全是由数字组成的位数字.请计算,以下式子是否成立: In…
原文链接:https://www.dreamwings.cn/hdu5688/2650.html Problem D Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 247 Accepted Submission(s): 174 Problem Description 度熊所居住的 D 国,是一个完全尊重人权的国度.以至于这个国家…
原文链接:https://www.dreamwings.cn/hdu5686/2645.html Problem B Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 403 Accepted Submission(s): 136 Problem Description 度熊面前有一个全是由1构成的字符串,被称为全1序列.你可以…
原文链接:https://www.dreamwings.cn/hdu5685/2637.html Problem A Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 504 Accepted Submission(s): 195 Problem Description 度熊手上有一本字典存储了大量的单词,有一次,他把所有单词组成了…
Scenic Popularity Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 96 Accepted Submission(s): 17 Problem Description 临近节日,度度熊们最近计划到室外游玩公园,公园内部包括了很多的旅游景点区和休息区,由于旅游景点很热门,导致景点区和休息区都聚集了很多人.所以度度熊在…
