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
sgau0522: 2015-05-24 12:21:56

dont forget to put "\n" after no mumber too... my mistake!!

Aman Kumar: 2015-05-11 15:57:01

i am getting the solution right in both my ide as well as ideone, but spoj compiler is giving me segmentation fault, please check what is wrong in my code

nap11: 2015-05-08 12:36:25

whats wrong with this code...plz help me

Utkarsh: 2015-05-04 18:32:10

Be careful with "No Number". Costed me WA.
Nice basic problem to get acquainted with string streams ! :)

Lusho: 2015-04-12 02:31:38

why ??
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at NumberSteps.<clinit>(Main.java:3)

hareesh: 2015-04-01 11:47:48

ppl having error
the input size is 100000

sonu: 2015-03-28 07:32:00

Easy problem ..
just don't forget to add the constraint for input range (i.e from 0 to 10000).

Jerry Goyal: 2015-03-08 22:08:45

I remembered 0 :)

Aryan Raj : 2015-03-05 10:45:19

remember 0 . cost me 4 wrong answer ... :P

Ryszard: 2015-02-26 20:10:32

Please if anyone can help! My program works for the test cases and any further figures I've tried. I have checked formatting of "No Number". I have the (0,0) case and n<10000 sorted. Still getting WA. Are there any other snags I might have run into, please?? Written in Java with println for outputs and a scanner for inputs. New to this site but was ok with previous tutorial challenges.

Last edit: 2015-02-26 20:11:43

Added by:Camilo Andrés Varela León
Time limit:1.159s
Source limit:50000B
Memory limit:1536MB
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