EZSUDOKU - Easy modified sudoku


Do you know the old famous game, sudoku?
It is a logic-based,combinatorial number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid (also called "boxes", "blocks", "regions", or "sub-squares") contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a unique solution.
Completed puzzles are always a type of Latin square with an additional constraint on the contents of individual regions. For example, the same single integer may not appear twice in the same row, column or in any of the nine 3×3 subregions of the 9x9 playing board.
French newspapers featured variations of the puzzles in the 19th century, and the puzzle has appeared since 1979 in puzzle books under the name Number Place.However, the modern Sudoku only started to become mainstream in 1986 by the Japanese puzzle company Nikoli, under the name Sudoku, meaning single number. It first appeared in a US newspaper and then The Times (UK) in 2004, from the efforts of Wayne Gould, who devised a computer program to rapidly produce distinct puzzles.
Since the Sudoku game is pretty hard, Mr. Bruce Banner, who is also fond in sudoku games, creates a new modified version of normal sudoku. It is tiled by 8x8 grids and divided into 4 areas of 4x4 grids. The rule is also simplified. You need to place numbers from 1 to 8 to the empty grids(denoted by a number 0) to the sudoku puzzle. Each number in the same columns or row must be distinct. In each area of 4x4 grids, it is allowed to have duplicate numbers up to 2 numbers.
Now, your task is to help Mr. Bruce Banner to determine whether the modified sudoku puzzle he has created is of a valid puzzle or not. If it is a valid puzzle, you will also need to output the solution.
Note: It is guaranteed that here is a unique answer in each test cases t

Input

The first line of input contains an integer T(1 ≤ T ≤ 100), the number of testcases. Then, it will be followed by 8*T lines which contain the modified sudoku puzzles. Each testcases will be separated by a newline.

Output

For each case print "Test case #X: ", where X (1 ≤ X ≤ T) is the case number, followed by an answer "YES" or "NO" and a newline. If there exists a valid solution, print the solution of each puzzles, and then print a newline.

Example

Input:
2
1 2 3 4 5 6 7 0
5 6 2 1 3 4 0 7
6 5 0 7 2 1 3 4
3 4 7 8 6 5 2 1
2 1 5 6 8 7 4 3
4 3 6 5 7 8 1 2
0 7 1 2 4 3 5 6
7 0 4 3 1 2 6 5

1 1 1 1 1 1 1 1 
1 1 1 1 1 1 1 1 
1 1 1 1 1 1 1 1 
1 1 1 1 1 1 1 1 
1 1 1 1 1 1 1 1 
1 1 1 1 1 1 1 1 
1 1 1 1 1 1 1 1 
1 1 1 1 1 1 1 1 

Output:
Test case #1: YES
1 2 3 4 5 6 7 8
5 6 2 1 3 4 8 7
6 5 8 7 2 1 3 4
3 4 7 8 6 5 2 1
2 1 5 6 8 7 4 3
4 3 6 5 7 8 1 2
8 7 1 2 4 3 5 6
7 8 4 3 1 2 6 5
Test case #2: NO


hide comments
learnerinblack: 2018-06-12 19:22:08

"In each area of 4x4 grids, it is allowed to have duplicate numbers up to 2 numbers. " Don't miss this, costed me 1 WA.

Shubham Jadhav: 2017-07-21 10:43:47

did not realize it was a tutorial problem -_-

k2_ico: 2017-05-31 16:24:38

Changing " i++ " to " ++i " helps in solving TLE Problems. I changed some of mine then it was judged AC.

pranav0123: 2017-05-31 14:08:46

@Admin Can you please check my solution. I have tried it for many test cases but couldn't find the mistake.
Submission id:- 19527704

natatassi: 2017-05-06 04:38:11

If you are getting WA remember to reassign zero to the empty cell that you are processing when you just tried all the possibilities and you have to backtrack to the previous empty cell.

greathj: 2016-11-21 03:15:19

I tested for 100 cases and my solution took 50ms. But I got TLE :(
Is there any hint about this?

thaihoc06: 2016-07-28 07:09:34

Same EASUDOKU, but this problem is hard to implement in JAVA. TLE :(
Only accepted after implement in C...

Last edit: 2016-07-28 07:11:45
manhterry93: 2016-07-27 19:05:08

finnally AC, n-th times

doluongk56: 2016-07-27 17:15:51

NICE

Last edit: 2016-07-27 17:18:31
khanhpqbk: 2016-07-25 16:38:56

@lampv: same here. There must be a problem with output. Can anyone who got AC provides me a strong test case. I would be very thankful!
UPDATED: couldn't find any test case to prove, but After checking if you can reach the final step (that means filling in the last cells of 8*8 table), I got AC !

Last edit: 2016-07-25 17:30:45

Added by:hanstan
Date:2016-05-28
Time limit:0.100s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: ASM64 GOSU JS-MONKEY
Resource:Self