AP2  AP  Complete The Series (Easy)
Arithmatic and geometric Progressions are 2 of the well known progressions in maths.
Arithmatic progression(AP) is a set in which the difference between 2 numbers in constant. for e.g., 1, 3, 5, 7, 9 .... In this series the difference between 2 numbers is 2.
The task here is very simple indeed.
You will be given the 3rd term , 3rd last term and the sum of the series. You need print length of the series & the series.
Input
First line will contain a number indicating the number of test cases.
Each of the following t lines will have 3 number '3term' ,'3Lastterm' and 'sum'
3termĀ  is the 3rd term in of the series and
3LasttermĀ  is the 3rd term in of the series and
sum  is the sum of the series.
Output
For each input of the test case, you need to print 2 lines.
First line should have 1 value  the number of terms in the series.
2nd line of the output should print the series numbers separated by single space.
Example
Input: 1 3 8 55 Output: 10 1 2 3 4 5 6 7 8 9 10
NOTE:
 In all the test cases, all the series elements are positive integers.
 The series will have at least 7 elements.
 number of test cases <=100.
 All the numbers will fit in 64 bits (long long in C)
hide comments
true_saiyan:
20171122 15:50:24
Check for case where 3rd term and 3rd last term are equal in python. Cost me 2WA 

dinesh6752:
20171016 21:24:33
high school math :) 

hitesh87:
20170930 10:40:10
Got WA for int. AC in long long:p 

prasanth292130:
20170902 20:09:41
Pure math!!!!!!!


madhur4127:
20170826 07:33:48
1 WA for not printing N, avoid! 

hkuadithya:
20170818 07:12:04
Big HINT. Don't try some long mind fuck formula.


dexter_9:
20170806 12:58:20
are all input series AP ?


ramesh_961:
20170529 09:29:28
Easy Think cool!! n>=6(no of elements) in all test cases!! 

sagnik_66:
20170519 20:09:55
Easy! 

polkerty:
20170316 04:19:26
Wow... do not over think this problem. It's rated as one of the easiest ones here, but if you approach it wrong you can get many WAs. Don't use binary search. Don't do anything involving quadratics or powers. ... This has scarred me haha 
Added by:  Devil D 
Date:  20120313 
Time limit:  0.100s 
Source limit:  1500B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: ASM64 
Resource:  Own 