题解: 其实贪心地算就可以了 一个最优的分配就是每条边权贡献的值为min(k, sz[x]),sz[x]是指子树的大小 然后最后加起来就是答案. #include <iostream> #include <cstring> #include <cstdio> #include <vector> #include <set> #define fi first #define se second using namespace std; ; type…

题解: 我是参考的 http://blog.csdn.net/qq_32570675/article/details/76571666 这一篇 orz 原来可以这么变换,涨姿势 代码: #include <iostream> #include <cstring> #include <cstdio> using namespace std; typedef long long LL; ; ; ; LL F[maxn*], G[maxn*], mul[maxn], imul…

题解: (并查集处理往上跳的时候,一定要先让u,v往上跳到并查集的祖先,不然会wa掉) 代码如下: #include <iostream> #include <algorithm> #include <cstdio> #include <vector> #include <cstring> using namespace std; ; typedef long long LL; int f[maxn], g[maxn], p[maxn], dee…

地址:http://acm.split.hdu.edu.cn/showproblem.php?pid=6060 题目: RXD and dividing Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 524288/524288 K (Java/Others)Total Submission(s): 522    Accepted Submission(s): 219 Problem Description RXD has a tr…

FFF at Valentine Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 1060    Accepted Submission(s): 506 Problem Description At Valentine's eve, Shylock and Lucar were enjoying their time as any oth…

Dying Light Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 513    Accepted Submission(s): 122 Problem Description LsF is visiting a local amusement park with his friends, and a mirror room su…

CSGO Time Limit: 20000/10000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 127    Accepted Submission(s): 20 Problem Description Senior Pan is crazy about CSGO and she is so skilled. She can kill every enemy she sp…

Ch’s gift Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 1354    Accepted Submission(s): 496 Problem Description Mr. Cui is working off-campus and he misses his girl friend very much. After a w…

Big binary tree Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 597    Accepted Submission(s): 207 Problem Description You are given a complete binary tree with n nodes. The root node is numbere…

Colorful Tree Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 1539    Accepted Submission(s): 616 Sample Input 3 1 2 1 1 2 2 3 6 1 2 1 3 2 1 1 2 1 3 2 4 2 5 3 6 Sample Output Case #1: 6 Case #…