POJ 2676 Sudoku Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 17627   Accepted: 8538   Special Judge Description Sudoku is a very simple task. A square table with 9 rows and 9 columns is divided to 9 smaller squares 3x3 as shown on the…

Description An abandoned country has n(n≤100000) villages which are numbered from 1 to n. Since abandoned for a long time, the roads need to be re-built. There are m(m≤1000000) roads to be re-built, the length of each road is wi(wi≤1000000). Guarante…

Curling 2.0 Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 131072/65536K (Java/Other) Total Submission(s) : 30   Accepted Submission(s) : 16 Problem Description On Planet MM-21, after their Olympic games this year, curling is getting popular.…

SudoKu Time Limit:2000MS     Memory Limit:65536KB     64bit IO Format:%lld & %llu POJ 2676 Description Sudoku is a very simple task. A square table with 9 rows and 9 columns is divided to 9 smaller squares 3x3 as shown on the Figure. In some of the c…

题目分析: 对于A,B,C,D四支队伍,两两之间进行一场比赛,获胜得3分,平局得1分,失败不得分,现在对给出的四个队伍的得分,判断能否满足得到这种分数,且方案唯一输出yes,不唯一输出no,不可能则输出worng,由于一共只有6场比赛,直接通过暴力每一种可能,创建mat[i][j]存放队伍i和队伍j比赛对于i来说的得分,mat[j][i]存放对于j来说的得分,然后建立cal(int row,int col)深搜函数,对于每个mat[row][col]的结果都进行递归,查询得分为3,1,0的三种情…

 Stamps  The government of Nova Mareterrania requires that various legal documents have stamps attached to them so that the government can derive revenue from them. In terms of recent legislation, each class of document is limited in the number of st…

Sudoku Time Limit : 4000/2000ms (Java/Other)   Memory Limit : 131072/65536K (Java/Other) Total Submission(s) : 15   Accepted Submission(s) : 12 Special Judge Problem Description Sudoku is a very simple task. A square table with 9 rows and 9 columns i…

Sudoku Sudoku is a very simple task. A square table with 9 rows and 9 columns is divided to 9 smaller squares 3x3 as shown on the Figure. In some of the cells are written decimal digits from 1 to 9. The other cells are empty. The goal is to fill the…

A Knight's Journey Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 131072/65536K (Java/Other) Total Submission(s) : 66   Accepted Submission(s) : 27 Problem Description Background The knight is getting bored of seeing the same black and white…

Sudoku Problem's Link:   http://poj.org/problem?id=2676 Mean: 略 analyse: 记录所有空位置,判断当前空位置是否可以填某个数,然后直接DFS,注意从后往前搜索,时间比正向搜快很多.16ms水过 Time complexity: O(n) Source code:  // Memory Time // 1347K 0MS // by : crazyacking // 2015-04-10-14.30 #include<map>…