D Tree Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 102400/102400 K (Java/Others)Total Submission(s): 3876 Accepted Submission(s): 743 Problem Description There is a skyscraping tree standing on the playground of Nanjing University of…
HDU 4812 思路: 点分治 先预处理好1e6 + 3以内到逆元 然后用map 映射以分治点为起点的链的值a 成他的下标 u 然后暴力跑出以分治点儿子为起点的链的值b,然后在map里查找inv[b]*k 代码: #include<bits/stdc++.h> using namespace std; #define fi first #define se second #define pi acos(-1.0) #define LL long long //#define mp make_…
Shell Necklace Time Limit: 16000/8000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 647 Accepted Submission(s): 287 Problem Description Perhaps the sea‘s definition of a shell is the pearl. However, in my view,…
D Tree Problem Description There is a skyscraping tree standing on the playground of Nanjing University of Science and Technology. On each branch of the tree is an integer (The tree can be treated as a connected graph with N vertices, while each br…
D Tree Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 102400/102400 K (Java/Others) Total Submission(s): 1687 Accepted Submission(s): 263 Problem Description There is a skyscraping tree standing on the playground of Nanjing University of…