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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suraj_13:
20190318 14:26:58
Think recursively 

newbie_127:
20190309 03:36:17
Break down the problem as given in the hint :


sandilya1599:
20190301 04:50:07
Noice 

arvindrvs21:
20190210 14:50:05
inputs are not in correct order.. space and new line are interchangeably used.. Dont try this code in java Last edit: 20190210 14:50:57 

anant6025:
20190208 00:28:15
Nice Question, AC in one go!


f23505106:
20190113 08:58:54
python need very careful, the input is not as description


mohitksharma:
20190107 22:02:40
Can somebody give me an alternate test case to check?


suyashsingh234:
20181218 11:25:44
My brain broke trying to solve this. Got ac finally. 

hyperion101010:
20181102 15:44:46
solved sorry be careful with large data types 

hyperion101010:
20181102 14:41:04
getting tle in java

Added by:  Paritosh Aggarwal 
Date:  20090221 
Time limit:  1s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
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