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…
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,…
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…
题目链接:http://poj.org/problem?id=3074 Sudoku Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 10451 Accepted: 3776 Description In the game of Sudoku, you are given a large 9 × 9 grid divided into smaller 3 × 3 subgrids. For example, . 2 7…
题目链接:https://vjudge.net/problem/HUST-1017 1017 - Exact cover 时间限制:15秒 内存限制:128兆 自定评测 7673 次提交 3898 次通过 题目描述 There is an N*M matrix with only 0s and 1s, (1 <= N,M <= 1000). An exact cover is a selection of rows such that every column has a 1 in exact…