I got a message from system stating:
Attention!
Your solution 311098094 for the problem 2075B significantly coincides with solutions shicvar2238/311067519, Gmnixr/311074515, bdyby2010010/311075307, malikhuhuna5/311076374, num_2/311078562, 2740/311083071, arjun.das1462002/311083646, STXRSHIVA/311084509, jayaraj_0304/311084606, ermia158/311084708, F9Devil/311086610, arcadeX/311086968, noyon_1985/311087263, Harshuu_007/311087673, itsumitranjan3/311087809, Half_Gojo/311088350, adw20050204/311088568, uk_024/311089107, Daxal_08/311089686, pratapsingh2005/311089836, Ar3s/311090645, Neer21/311091591, klu2300030455/311091634, khushalcofound/311092179, rajavarapu.avinash/311093192, Fahmy/311093360, Conquerer_of_Jiangly/311093853, amitranjan9708/311094220, EMON_123/311094364, Piyush071/311094366, Vedddaaamsh/311094790, LOL_777/311094968, nallala_vishala/311095218, officialaman460/311095669, raj_00_singh/311096088, Lucky_grinder/311096437, keshav_dubey/311096469, Rapids/311096763, sarthak1221/311096906, 2mato_pota2/311097421, SyntaxSaga/311097654, rayrup123/311098094, El7abal2/311098515, Likhith_Usirikayala/311098707, p_2626/311099244, TheRubicon/311100240, Eren47/311102654, VCB/311102740, akashnath420/311102799, SharathKumarReddy/311103811, jajuparikshit105/311103873, buvan0702/311105479, Chilnosu/311105516, devanshsinha_07/311106989, Moncho/311108308, DaniyalT/311108338, me22b164/311108953, gokulv1900/311109267, yashwanthraju2006/311109522, Dangerous_Pisces/311109881, meghajpatel/311110009, gokulv1905cit/311110497, hcm10hung_nh/311110734, SafaruzzamanShovo_2.0/311111486, DuyNgaDocTon1410/311111641, Itadori-_-Yuji/311111934, bhavya1176/311112972, madhavansb133/311113199, 086ShivamDas/311113268, MitMehta/311113742, PRAJESH14/311114435, i_love_sae/311114544, karan102/311114955, Surya__1234/311116590, yashasksm/311116657, Surya22/311116776, devanshsinha246/311117156, darknight_/311118328, hudai33/311119124, rohit98/311121236, also_hr9/311121250, harshil0810/311121512, pragya_03/311121557, madhava2807/311122263, 2200040322/311122274, asjn155/311122559, shubham_choudhary/311123176, Disha_Jain/311123732, King_lsyuan/311124654, phongisgood/311124758, madhavareddy773/311125447, daucun09/311128472, yashprajapati/311128972, RIJUKR/311129417, swyamk/311129698, MIE360/311129957, DrillEndeavor/311130614, Yash_Thakur/311130820, rahulbhatnagar364/311131026, Nayeem_11720/311131491, saksham2311/311132024, 1chandanAAA/311132386, .AhmedHassan./311133267, bs7079961/311133430, mrLolCode/311134246, kas9k/311135188, Ajay_1621/311135523, kishorguguloth96/311136140, SyedRubad/311136792, Shreyansh_Pandey/311137146, Soumarya_Pal/311137153, Pulkit_Jain7/311137841, BlitzkreigRunner/311137863, Mihi99/311137941, nileshmori7757/311138190, harshulcodes/311138481, adnanosman137/311138744, alok_2004/311139040, raja0132/311139075, ayushjoshi1403/311139131. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.me/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.
I have no idea how it got leaked as I do not know any of these people moreover I do not use ideon. I do use an online compiler https://www.onlinegdb.com/online_c++_compiler not sure if that is what caused this. Can anyone kindly advise me what to do in this situation
I think you might need to ask the codeforces team about this because most of these submissions look very similar. Although I am not accusing you of anything, your code seems similar to the other codes. I think you might have cheated, but I have no evidence, so I will not accuse you of anything. There is a possibility that your code is just somehow very similar to these codes, and actually all of the other people listed cheated. I would just say that if you did not cheat, you should contact the codeforces team.
How to do that?
As the blog says:
"If there are any doubts about the time of publication, possible collaboration etc., a participant will have to prove his/her complete innocence by presenting compelling and satisfactory evidence."
You should most likely wait until Mike or his team looks at your blog (make sure to show evidence on why you are innocent, and just because you used the ide does not technically prove your innocence!) and makes the correction (or still does not change the result). If it has been more than 5 days, maybe contact Mike, but I'm not sure if that's against the rules or not!
Besides variable names, your code is 100% the same as several of the other submissions (that I looked at). In fact, it produces the exact same executable as many of them!