Treasure Map Time Limit:2000MS Memory Limit:32768KB 64bit IO Format:%lld & %llu Submit Status Practice ZOJ 3209 Appoint description: System Crawler (2015-04-09) Description Your boss once had got many copies of a treasure map. Unfortunately…
直接精确覆盖 开始逐行添加超时了,换成了单点添加 #include <iostream> #include <cstring> #include <cstdio> #include <cmath> #include <vector> using namespace std; #define FOR(i,A,s) for(int i = A[s]; i != s; i = A[i]) #define exp 1e-8 ; int n, m, k,…
题目链接:https://vjudge.net/problem/ZOJ-3209 Treasure Map Time Limit: 2 Seconds Memory Limit: 32768 KB Your boss once had got many copies of a treasure map. Unfortunately, all the copies are now broken to many rectangular pieces, and what make it wo…
Treasure Map Time Limit: 2 Seconds Memory Limit: 32768 KB Your boss once had got many copies of a treasure map. Unfortunately, all the copies are now broken to many rectangular pieces, and what make it worse, he has lost some of the pieces. Luck…
Treasure Map Time Limit: 2 Seconds Memory Limit: 32768 KB Your boss once had got many copies of a treasure map. Unfortunately, all the copies are now broken to many rectangular pieces, and what make it worse, he has lost some of the pieces. Luck…
Description Your boss once had got many copies of a treasure map. Unfortunately, all the copies are now broken to many rectangular pieces, and what make it worse, he has lost some of the pieces. Luckily, it is possible to figure out the position of e…
题意:一个 n x m 的矩形(1 <= n, m <= 30),现给出这个矩形中 p 个(1 <= p <= 500)子矩形的左下角与右下角坐标,问最少用多少个子矩形能够恰好组成这个 n x m 的大矩形. 题目链接:http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=3372 -->>这是精确覆盖问题,而DLX正是解决精确覆盖问题的有利武器.. 模型转换:将原矩形变成一行,作为 DLX 中的列,表示要…
