BYTESM2  Philosophers Stone
One of the secret chambers in Hogwarts is full of philosopher’s stones. The floor of the chamber is covered by h × w square tiles, where there are h rows of tiles from front (first row) to back (last row) and w columns of tiles from left to right. Each tile has 1 to 100 stones on it. Harry has to grab as many philosopher’s stones as possible, subject to the following restrictions:
 He starts by choosing any tile in the first row, and collects the philosopher’s stones on that tile. Then, he moves to a tile in the next row, collects the philosopher’s stones on the tile, and so on until he reaches the last row.
 When he moves from one tile to a tile in the next row, he can only move to the tile just below it or diagonally to the left or right.
Input
The first line consists of a single integer T, the number of test cases. In each of the test cases, the first line has two integers. The first integer h (1 <= h <= 100) is the number of rows of tiles on the floor. The second integer w (1 <= w <= 100) is the number of columns of tiles on the floor. Next, there are h lines of inputs. The ith line of these, specifies the number of philosopher’s stones in each tile of the ith row from the front. Each line has w integers, where each integer m (0 <= m <= 100) is the number of philosopher’s stones on that tile. The integers are separated by a space character.
Output
The output should consist of T lines, (1 <= T <= 100), one for each test case. Each line consists of a single integer, which is the maximum possible number of philosopher’s stones Harry can grab, in one single trip from the first row to the last row for the corresponding test case.
Example
Input: 1 6 5 3 1 7 4 2 2 1 3 1 1 1 2 2 1 8 2 2 1 5 3 2 1 4 4 4 5 2 7 5 1 Output: 32 //7+1+8+5+4+7=32
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Arjun Verma:
20140222 12:08:00
NICE Dp !! :) 

CrazyBit:
20140212 18:04:27
AC in first attempt!! First time for a DP problem! :D 

Sudarshan K:
20140206 15:14:01
could someone tell me how do i take input here? are there w integers on each line.?I am getting wa even with correct logic. 

Sumit Kumar Kisku:
20140202 11:46:24
my first dp :) 

Praneeth :
20140127 09:18:03
First Dp :) 

785227:
20140116 15:08:17
My 150th Classical :)


shashank:
20140116 11:30:48
AC in C++ , but nzec in java...


warlock:
20140112 11:54:35
easy dp, weak test cases! 

Amitrajit Chattopadhyay:
20140103 08:35:07
yaahoo!!right answer in first try!!my first dp problem :) 

Rodney Ledo Ramírez:
20130918 01:36:46
Please i need some tricky test cases, i test mi solution and seems to be correct but i getting WA 
Added by:  Paritosh Aggarwal 
Date:  20090221 
Time limit:  1s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
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