Problem 4 - School Contact Tracing
 
 
 
 
Contest status
 
 
# When Who Problem Lang Verdict
119737142 Jun/17/2021 20:46 lolzano 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
109292574 Mar/06/2021 23:27 tusharamit3200# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
218849573 Aug/15/2023 00:07 d19n 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
260169527 May/09/2024 22:13 _Samar 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
367885623 Mar/23/2026 14:14 TranVinhHuy2010# 4 - School Contact Tracing C++20 (GCC 13-64) Perfect result: 23 points
235153182 Dec/01/2023 03:52 vjudge1 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
112004018 Apr/04/2021 16:03 gokul.raj# 4 - School Contact Tracing C++17 (GCC 9-64) Perfect result: 23 points
107888851 Feb/19/2021 01:13 dp_ing 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
310277904 Mar/12/2025 18:29 oqyepsebiay8r 4 - School Contact Tracing PyPy 3-64 Perfect result: 23 points
322953544 Jun/05/2025 10:42 xzqe9ohb2tnx 4 - School Contact Tracing PyPy 3-64 Perfect result: 23 points
108166127 Feb/22/2021 13:01 Dean_student 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
133267376 Oct/27/2021 18:50 Pharaonic_fox# 4 - School Contact Tracing C++14 (GCC 6-32) Perfect result: 23 points
305539733 Feb/11/2025 05:19 M.ZeeshanRashid# 4 - School Contact Tracing C++20 (GCC 13-64) Perfect result: 23 points
368754185 Mar/29/2026 19:07 rajkumarwolftiger 4 - School Contact Tracing Python 3 Perfect result: 23 points
149505053 Mar/13/2022 12:29 Rusted: christyyy_a, Roslynlia, Clapie# 4 - School Contact Tracing C++14 (GCC 6-32) Perfect result: 23 points
153566746 Apr/13/2022 16:43 I see PC Champions: DARK-N, Shooter, Brre.Hemo# 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
107379495 Feb/15/2021 08:14 noob_monk 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
167656530 Aug/09/2022 18:58 vjudge1 4 - School Contact Tracing C++14 (GCC 6-32) Perfect result: 23 points
147676329 Feb/25/2022 18:40 vjudge3 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
274979684 Aug/06/2024 22:23 zhukau# 4 - School Contact Tracing C++20 (GCC 13-64) Perfect result: 23 points
180294788 Nov/10/2022 14:36 CNLB_T: AlexLorintz, RobertRDP, AndreeaRhea# 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
107627630 Feb/16/2021 20:42 litesam 4 - School Contact Tracing PyPy 3 Perfect result: 23 points
110826500 Mar/23/2021 18:33 Waduh (name pending): upuyuk, ZeroScar, KerakTelor# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
108174665 Feb/22/2021 15:04 rain. 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
121253232 Jul/03/2021 20:06 Banana$: .-O_O-., amankrsingh, pranavg000# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
167728496 Aug/10/2022 12:11 vjudge2 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
164189375 Jul/14/2022 23:37 abdallahmontaser# 4 - School Contact Tracing C++14 (GCC 6-32) Perfect result: 23 points
322953664 Jun/05/2025 10:42 a6svdwt6dhquv 4 - School Contact Tracing PyPy 3-64 Perfect result: 23 points
108839199 Mar/02/2021 02:37 SlowMotionSuicide# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
107369402 Feb/15/2021 00:08 AnonySharma 4 - School Contact Tracing C++17 (GCC 9-64) Perfect result: 23 points
167762437 Aug/10/2022 16:33 Pinocchio 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
125080342 Aug/06/2021 21:03 geniosities: Mokut, madlogic# 4 - School Contact Tracing C++17 (GCC 9-64) Perfect result: 23 points
144324487 Jan/28/2022 16:21 NEvOl# 4 - School Contact Tracing MS C++ 2017 Perfect result: 23 points
168017807 Aug/12/2022 23:43 mayman# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
168017922 Aug/12/2022 23:44 mayman# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
107745376 Feb/18/2021 08:49 overclocked_t 4 - School Contact Tracing C++14 (GCC 6-32) Perfect result: 23 points
213527311 Jul/12/2023 17:46 saifsweelam 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
107376040 Feb/15/2021 06:13 arvas123 4 - School Contact Tracing C++14 (GCC 6-32) Perfect result: 23 points
167846505 Aug/11/2022 11:56 M-Haboosh 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
322953699 Jun/05/2025 10:43 1l9vr5o58wvf1 4 - School Contact Tracing PyPy 3-64 Perfect result: 23 points
323727333 Jun/10/2025 10:24 xzqe9ohb2tnx 4 - School Contact Tracing PyPy 3-64 Perfect result: 23 points
343685582 Oct/14/2025 14:28 الأحرار: Better_Call_Abdul, KAKAROT-M# 4 - School Contact Tracing C++20 (GCC 13-64) Perfect result: 23 points
211293712 Jun/28/2023 04:45 vjudge1 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
107727379 Feb/17/2021 23:35 Habbas11 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
118170587 Jun/02/2021 11:58 honkhonk: tr1stram, aseemarsh, kira11# 4 - School Contact Tracing C++14 (GCC 6-32) Perfect result: 23 points
220445056 Aug/26/2023 02:46 Alg01# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
180295519 Nov/10/2022 14:42 CNLB_T: AlexLorintz, RobertRDP, AndreeaRhea# 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
129028773 Sep/17/2021 03:17 Skypiea# 4 - School Contact Tracing PyPy 3 Perfect result: 23 points
107372569 Feb/15/2021 02:35 Forrest_Gump 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
123588638 Jul/24/2021 11:51 A.K.E.E.# 4 - School Contact Tracing C++14 (GCC 6-32) Perfect result: 23 points
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