NSTEPS - Number Steps

Starting from point (0,0) on a plane, we have written all non-negative 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.



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.



For each point in the input, write the number written at that point or write No Number if there is none.



4 2
6 6
3 4

No Number

hide comments
anupamwadhwa: 2015-12-11 21:26:10

what's that ac means

akshayvenkat: 2015-12-10 07:33:31

AC in first go after a very long time xD

akshayvenkat: 2015-12-10 07:33:31

AC in first go after a very long time xD

abhi31jeet: 2015-11-30 06:07:39

No points allotted for successful submission... Why does this happen??

Timmy Jose: 2015-11-22 19:41:25

People should refrain from posting any ideas here on this page. The forum is meant to be used for that purpose.

ramesh bugatha: 2015-11-03 07:19:24

Even this program differentiating between endl and "\n" for newline.
if you use "\n" it will accept, if not it won't.

sonali9696: 2015-10-20 10:10:18

This question is worth 0.01 points but even after successfully solving it my score remains 0 points.Why??????

aditya1997: 2015-10-04 20:29:22

really very easy ,ac in one go!!

wolverine007: 2015-09-29 17:47:43


Last edit: 2015-09-29 17:48:01
puntu: 2015-09-27 08:05:40

two cases. for a number only 2 choices, 1)y==x and 2)y+2==x. for x&y even, ans is (y+x) and for odd ans is (y+x-1).

Added by:Camilo Andrés Varela León
Time limit:1.159s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: ERL JS-RHINO NODEJS PERL6 VB.NET
Resource:Asia - Tehran 2000