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
2013-05-19 22:38:24 raunakrocks
nyce problem...AC!!
2013-05-19 22:38:24 Jorian
why iam getting compilation error every time. plz suggest some solun..
2013-05-19 22:38:24 Rocker3011
Do not assume that there is only an 'A' to start, cost me many silly WA :(
2013-05-19 22:38:24 Garima Sachan
=/

Last edit: 2012-01-22 22:47:21
2013-05-19 22:38:24 cegprakash
Once you have picked a character from the matrix to form a sentence, you cannot pick it again to form the same sentence
2013-05-19 22:38:24 Pandian
Whether an alphabet in a position can be traversed only once ??
© Spoj.com. All Rights Reserved. Spoj uses Sphere Engine™ © by Sphere Research Labs.