Problem 4 - School Contact Tracing
 
 
 
 
Contest status
 
 
# When Who Problem Lang Verdict
124467091 Aug/01/2021 05:24 muhammadhasan01# 4 - School Contact Tracing C++17 (GCC 9-64) Perfect result: 23 points
107398266 Feb/15/2021 14:33 baem 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
135086290 Nov/12/2021 14:49 AC_sahER# 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
322888284 Jun/04/2025 19:32 ktptw4vks56v 4 - School Contact Tracing PyPy 3-64 Perfect result: 23 points
107367513 Feb/14/2021 23:09 tiasmondal 4 - School Contact Tracing C++17 (GCC 9-64) Perfect result: 23 points
208931099 Jun/07/2023 22:50 vjudge4 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
107366818 Feb/14/2021 22:51 MuhammadHassan 4 - School Contact Tracing C++14 (GCC 6-32) Perfect result: 23 points
295179528 Dec/06/2024 09:01 14 Problems cant drop us: Ali_Nasser, Yousef.Fadl# 4 - School Contact Tracing C++23 (GCC 14-64, msys2) Perfect result: 23 points
142736457 Jan/14/2022 22:15 Yaman_Alwaza# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
107510431 Feb/16/2021 10:39 YMSeah 4 - School Contact Tracing PyPy 3 Perfect result: 23 points
124897051 Aug/04/2021 22:35 bryanahusna 4 - School Contact Tracing GNU C++11 Perfect result: 23 points
124470175 Aug/01/2021 06:48 DryCr1TiKaL: prowess, Satish_Kumar_Coding, Jeongyeon# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
107375601 Feb/15/2021 05:50 andromeda_m31 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
323348849 Jun/08/2025 10:07 252fzl4eh0u8y 4 - School Contact Tracing PyPy 3-64 Perfect result: 23 points
124395218 Jul/31/2021 09:33 Mastre# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
108472565 Feb/25/2021 15:16 woshinibaba 4 - School Contact Tracing GNU C++11 Perfect result: 23 points
292368402 Nov/19/2024 20:11 Legend_K# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
108990171 Mar/03/2021 11:58 dhiraj-01 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
234988873 Nov/30/2023 01:39 vjudge3 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
107366304 Feb/14/2021 22:38 MuhammadAl-Halaby 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
218369116 Aug/11/2023 18:34 Negm 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
107368985 Feb/14/2021 23:53 krishrawat 4 - School Contact Tracing C++14 (GCC 6-32) Perfect result: 23 points
220370895 Aug/25/2023 15:00 ZooMo 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
209501121 Jun/13/2023 01:25 vjudge2 4 - School Contact Tracing C++17 (GCC 9-64) Perfect result: 23 points
209501165 Jun/13/2023 01:26 vjudge4 4 - School Contact Tracing C++17 (GCC 9-64) Perfect result: 23 points
107480352 Feb/15/2021 21:04 Inferno03 4 - School Contact Tracing C++17 (GCC 9-64) Perfect result: 23 points
110901499 Mar/24/2021 17:09 icpc: Abhishek2095, InANutshell, nitin-porwal# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
120359463 Jun/23/2021 13:50 F: AArtur, Mathematician2000# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
134442049 Nov/06/2021 01:35 GeekyCoder_PS 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
204084958 Apr/30/2023 23:47 Another Upsolve Day: _OmarAbdo# 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
134514467 Nov/06/2021 19:50 Beet_Farmers: ashnove0, aashish999, imposter_1729# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
107733598 Feb/18/2021 03:47 lanChe 4 - School Contact Tracing GNU C++11 Perfect result: 23 points
111169521 Mar/27/2021 01:11 LastDance_NotLastOfMe# 4 - School Contact Tracing C++17 (GCC 9-64) Perfect result: 23 points
116952745 May/21/2021 21:53 shikhar01 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
322953236 Jun/05/2025 10:39 1l9vr5o58wvf1 4 - School Contact Tracing PyPy 3-64 Perfect result: 23 points
127320574 Aug/29/2021 13:24 Ghenwa_Ghassan 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
256457933 Apr/13/2024 15:51 Wrong Answer!!!!!!!??????!?: opop1omar, asserhassan, RAJAB# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
127315204 Aug/29/2021 11:56 rou_uo 4 - School Contact Tracing C++17 (GCC 9-64) Perfect result: 23 points
107367676 Feb/14/2021 23:14 Moustafa 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
121714980 Jul/08/2021 13:58 Stimsly 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
209653146 Jun/14/2023 13:27 _Dimpal_# 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
119676331 Jun/17/2021 06:36 RBurgundy# 4 - School Contact Tracing C++17 (GCC 9-64) Perfect result: 23 points
113487080 Apr/19/2021 15:57 CyberPunk#1: Shanawaz444, kiransaiabhi, eswar2001# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
109639256 Mar/10/2021 19:10 dhritishman22 4 - School Contact Tracing C++17 (GCC 9-64) Perfect result: 23 points
235153089 Dec/01/2023 03:50 vjudge5 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
110913121 Mar/24/2021 19:23 satyarthP# 4 - School Contact Tracing C++17 (GCC 9-64) Perfect result: 23 points
111477224 Mar/30/2021 16:27 ABC: ShubhamAvasthi, Delirious_Butter, Test2311# 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
235153124 Dec/01/2023 03:51 vjudge2 4 - School Contact Tracing C++20 (GCC 11-64) Perfect result: 23 points
343680560 Oct/14/2025 13:50 الزمالة تتصل: Rei_0, JamaloCopter# 4 - School Contact Tracing C++23 (GCC 14-64, msys2) Perfect result: 23 points
107369135 Feb/14/2021 23:58 aLTaCcO 4 - School Contact Tracing C++17 (GCC 7-32) Perfect result: 23 points
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