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.
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
flower:
2023-07-22 07:31:56
SPOJ is one of the few problem sites that hasn't changed to terrible ui. I hope it stays exactly as it is forever. Also this problem is very easy. |
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chota_don17:
2022-01-18 10:31:34
They should give more examples!!!!!!
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rishisingh7012:
2021-11-20 12:25:18
AC in one go :)
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clary09:
2021-07-18 16:34:07
Hint: Try summing up the co-ordinates(x&y) and establish a relation b/w this sum and number present in that co-ordinate. You will get all your answers !
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puneet19:
2021-06-25 17:08:00
Look for the even and odd pattern emerging in the coordinates and nothing more. |
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apurv22:
2021-05-30 17:33:30
just look for two separate AP (arithmetic progression) of the numbers on the two lines. AC in one go
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unwanted_coder:
2021-05-24 17:39:27
I am logically illogical :) |
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hemraj_07:
2021-05-23 08:25:02
AC in one go
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bushra_04:
2021-04-12 20:51:47
I AM AN IDIOT Last edit: 2021-04-13 06:31:51 |
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sk128:
2021-04-06 21:13:25
if (a=1) :(
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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 |