AP3  AP  Complete The Series v2
After solving "AP  Complete The Series (easy)" very fast, Lucifer decided to make it little more interesting.
He said
He will be give you the 3rd term , 4th last term and the sum of the AP 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' ,'4Lastterm' and 'sum'
3term  is the 3rd term in the series and
4Lastterm  is the 4th last term in the series and
sum  is the sum of the series.
Output
For each input of the test case, you need to print 2 lines.
fist line should have 1 value number of terms in the series.
2nd line of the output should print the series numbers separated by single space.
Example
Input:
1
3 7 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
raghav_7050:
20190316 15:33:47
@Devil could you please let me know the flaw in my code, id  23423975 

ankitpriyarup:
20181219 15:21:05
Easy my 60th AC :) Don't forget to use llrint keep precision in mind 

sanyam19:
20180104 15:19:30
"The series will have at least 7 elements" took this line wrongly by thinking,we hv to print upto min.7 elements only..which cause me 2 WA


jaykay12:
20170618 23:14:18
Finally AC. :) Use Simple Maths & Solve Quadratic. Use sqrtl() & llrint() for avoiding WA due to precision error. :) 

strangerx:
20170204 11:29:38
Separately handle the case when all the elements of the series will be equal . 

pvsmpraveen:
20150903 17:34:15
GOT AC!! Some comments may drive you away from the problem, i did nothing with precision in this problem, ALL TERMS ARE GIVEN INTEGERS Last edit: 20150903 17:38:21 

Adarsh Tiwari:
20150629 16:11:25
can any one tell me that why it is not accepting my code as in ap2 . 

jas.py:
20150622 15:35:13
use llrint 

SHRINIKET ACHARYA:
20150612 11:22:54
if u r using double,use it correctly in every operation :) 

Avinab saha:
20150606 16:39:21
tricky question as per precisions are concerned........ use double for calculations,and use sqrtl instead of sqrt :) 
Added by:  Devil D 
Date:  20120313 
Time limit:  0.100s 
Source limit:  10000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: ASM64 
Resource:  Own 