NSTEPS  Number Steps
Starting from point (0,0) on a plane, we have written all nonnegative integers 0, 1, 2,... as shown in the figure. For example, 1, 2, and 3 has been written at points (1,1), (2,0), and (3, 1) respectively and this pattern has continued.
You are to write a program that reads the coordinates of a point (x, y), and writes the number (if any) that has been written at that point. (x, y) coordinates in the input are in the range 0...10000.
Input
The first line of the input is N, the number of test cases for this problem. In each of the N following lines, there is x, and y representing the coordinates (x, y) of a point.
Output
For each point in the input, write the number written at that point or write No Number if there is none.
Example
Input: 3 4 2 6 6 3 4 Output: 6 12 No Number
hide comments
rifky alif:
20120111 03:54:03
i'm getting an NZEC error......What's this? Can someone explain it to me? 

Ranker:
20120108 14:25:19
Easy one!! Last edit: 20121228 19:24:24 

Jitesh:
20110817 12:37:25
m getting an NZEC error......What's this????????


Ch.Aditya:
20110602 14:27:45
why my answer is wrong my answer id is 5184953


Marcos Mistretta:
20110423 15:40:49
is about even and odd is fun 

albertg:
20110419 05:27:08
What is the maximal value for n???


__Pra:
20110303 13:45:42
getting runtime error (SIGSEGV) any help???? please... 

sayed khalaf sayed:
20110204 17:54:09
why "wrong answer" and i have the same output?? any one can help me?? Last edit: 20110204 23:11:14 

Husnun Nashir:
20101120 19:38:24
just see the pattern number..then u will get a shorttime solution around 0.010.03 Last edit: 20101120 19:40:47 

M. Hilmil Muchtar A. P.:
20101120 03:30:35
tsabbit : aq ae WA kq.......... 
Added by:  Camilo Andrés Varela León 
Date:  20061125 
Time limit:  1.159s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: ERL JSRHINO NODEJS PERL6 VB.NET 
Resource:  Asia  Tehran 2000 