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.
![Illustration](../../../content/steinersp:nsteps.gif)
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
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saurabh:
2013-02-03 11:16:42
just see the pattern .........
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Narendra yadav:
2013-01-14 18:47:01
sachinmenezes : Print every time in a new line |
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Anubhav Balodhi :
2013-01-09 15:27:45
i thought da pattern really continued i.e. at (4,0) there is a 4 n so on... damn wrong answer :O |
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Sachin:
2012-10-03 18:42:20
works fine at home but when submiting says wrong answer |
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Siddharth Shah:
2012-10-03 15:12:32
brute force exceeds the time limit. Have to go by some other way :( |
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sathyanarayanan:
2012-07-18 16:17:42
use brute force...easy problem :P :) Last edit: 2012-07-18 16:18:47 |
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Fish3R:
2012-06-28 15:42:42
Just analyse the figure... Easy problem.. :D |
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sachin tendulkar:
2012-06-27 21:01:21
easy! logic from fig.
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marwan akkad:
2012-06-12 15:11:30
I got AC for the first time.
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jorsan:
2012-05-31 02:49:25
i have the same problem of Sarwesh Shah,and i dont understand why, please answer Last edit: 2012-05-31 02:50:08 |
Added by: | Camilo Andrés Varela León |
Date: | 2006-11-25 |
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 |