sudoku solutions sudoku solver

Question :.... Do I still use Sudoku? First of all, the general solutions are brute-force searches .. So I learned the X Algorithm for Data Structure Optimization of dancing-links, or the DLX Algorithm for short. Although the name of dancing-links is nice, it is actually a two-way cross linked list .. However, due to the various failures during debugging, the pointer is still looking at and worried (people

Transmission DoorSudoku Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 16894 Accepted: 8229 Special Judge DescriptionSudoku is a very simple task. A Square Table with 9 rows and 9 columns are divided to 9 smaller squares 3x3 as shown on the figure. In some of the cells is written decimal digits from 1 to 9. The other cells is empty. The goal is to fill the empty cells with a decimal digits from 1 to 9, one dig

Sudoku is a long history, but also a particularly popular mathematical intelligence game, it not only has a strong interest, but also exercise our logical thinking ability, I in the "Strongest Brain" program also saw this project. Sudoku Game "Chessboard" is composed of 9,981 small squares, players require: Players in each square, fill in 1 to 9 of any number, so that the entire chessboard of each column,

HDU_4069 I remember the day before when I was discussing the Data independence issue in the group, I realized that I had another dancing links thing. As a result, the second day of the Fuzhou online competition had a Data independence issue ...... After learning the Dancing Links, I finally dropped this question A. the difference between this question and the ordinary Sudoku lies in the grouping problem. In the past, it was A small palace that could

Sudoku concept, Idea, solution idea, C++code The overall code of the blog's thinking is very clear, it is worth learning.The above blog code DFS knowledge output an array of answers, if the number is unique to multiple solutions, simply change the DFS code simple (as follows): void dfs (int row,int col) {if (row>9)//if row exceeds 9 lines, direct output {for (int i=1; i The Overall code is as follows: #