ALLIZWEL - ALL IZZ WELL

Mr.ESP used to tell “ALL IZZ WELL” whenever he gets into any trouble. So his friends and the people around him used to laugh at him. But Mr.ESP is very strong in his belief. He believes that the term “ALL IZZ WELL” will make everything fine. Now your task is to ignore the story above and find whether there is a path in the given matrix which makes the sentence “ALL IZZ WELL”

There is a path from any cell to all its neighbouring cells. A neighbour may share an edge or a corner.

Input Specification:

The first line consists of an integer t representing the number of test cases.

The first line of each test case consists of two integers R and C representing the number of rows and number of columns in the matrix. The description of the matrix follows.

Output Specification:

For each test case print “YES” if there is a path which makes the sentence “ALLIZZWELL”. Else print “NO”.

Note: Take care of 4th test case

There is a new line after every test case in the input.

Input constraints:

t <= 1000
R <= 100
C <= 100

Sample Input:

5
3 6
AWE.QX
LLL.EO
IZZWLL

1 10
ALLIZZWELL

2 9
A.L.Z.E..
.L.I.W.L.

3 3
AEL
LWZ
LIZ

1 10
LLEWZZILLA
Sample Output:
YES
YES
NO
NO
YES

Added by:cegprakash
Date:2011-12-25
Time limit:1s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: ASM64

hide comments
2016-07-27 21:15:14
1. No letter can be retraversed.
2. [spoiler removed]


Last edit: 2016-07-29 22:01:15
2016-07-24 20:00:06
using backtrack, Java time limit, C++ AC with 0.02s. ???
2016-07-23 11:13:28
very easy. AC in one go!
2016-07-03 00:31:27 ayush
Please help, getting wrong answer!! here is my code link: http://ideone.com/CuW2hT
2016-06-21 11:28:39
try this test case:
3
0 0

3 0



1 10
ALLIZZWELL

Output should be:
NO
NO
YES
2016-05-29 12:17:33
without optimization => 0.03
After optimization => 0.03
2016-05-23 10:45:21
Great problem description :P like it :D
2016-05-04 10:49:57
AC in one go :)
2016-04-14 23:37:02 Lars Krapf
- There is an empty line between test cases
- All cells on path must be distinct

Last edit: 2016-04-14 23:39:37
2016-03-06 20:20:28 vimal
seriously man... tried all cases from spojtoolkit and from comments.. still WA :D ..driving me crazyy...
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