Problem A - Ribbon on the Christmas Present
 
 
 
 
Contest status
 
 
# When Who Problem Lang Verdict Time Memory
298006011 Dec/23/2024 09:32 Ghost participant FUNCoderA (Future University Hakodate) A - Ribbon on the Christmas Present Unknown Accepted 0 ms 0 KB
298006014 Dec/23/2024 09:32 Ghost participant XNOR (National Institute of Technology, Tokuyama College) A - Ribbon on the Christmas Present Unknown Accepted 0 ms 0 KB
298006075 Dec/23/2024 09:32 Ghost participant HuMaN (Shizuoka University) A - Ribbon on the Christmas Present Unknown Accepted 0 ms 0 KB
298006084 Dec/23/2024 09:32 Ghost participant TORA NI TSUBASA (Meiji University) A - Ribbon on the Christmas Present Unknown Accepted 0 ms 0 KB
298006158 Dec/23/2024 09:32 Ghost participant TTI_PC0 (Toyota Technological Institute) A - Ribbon on the Christmas Present Unknown Accepted 0 ms 0 KB
319558429 May/13/2025 21:27 threesquares: twosquares, conqueror_of_tourist, YuukiS# A - Ribbon on the Christmas Present PyPy 3-64 Accepted 93 ms 200 KB
298533647 Dec/26/2024 14:59 shubham6105 A - Ribbon on the Christmas Present PyPy 3-64 Accepted 78 ms 1400 KB
304621956 Feb/06/2025 00:12 UCF OrElse: ssk4988, Xylenox, marks39# A - Ribbon on the Christmas Present PyPy 3-64 Accepted 93 ms 1400 KB
299269219 Jan/01/2025 18:32 algos payasos: domovonok, Blinov_Artemii, putis# A - Ribbon on the Christmas Present Python 3 Accepted 77 ms 0 KB
298137840 Dec/24/2024 09:03 IceBorworntat A - Ribbon on the Christmas Present PyPy 3-64 Accepted 93 ms 0 KB
298656664 Dec/27/2024 14:20 ˌ麭뇥杨㼑᱔ࠌ䉶: imcelery# A - Ribbon on the Christmas Present PyPy 3-64 Accepted 93 ms 1400 KB
333920949 Aug/14/2025 14:37 sorrawit A - Ribbon on the Christmas Present Python 3 Accepted 77 ms 0 KB
324402884 Jun/14/2025 20:30 kg1122# A - Ribbon on the Christmas Present Python 3 Accepted 77 ms 300 KB
351082494 Nov/28/2025 22:10 Heres my number: 998244353, so call me maybe: p5imoes, eu_caue, PMiguelez# A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 62 ms 0 KB
300829839 Jan/13/2025 13:44 5esrt*hvn#: fIr0a2t, 11d10xy# A - Ribbon on the Christmas Present C++17 (GCC 7-32) Accepted 77 ms 100 KB
318542140 May/05/2025 21:11 Segfault Go BRRRR: TheRedstar, BLOBVISGOD, jeroenodb# A - Ribbon on the Christmas Present PyPy 3-64 Accepted 108 ms 1400 KB
336824769 Sep/04/2025 07:16 hdu-t01: Retired_Isaunoya, -0v0-, Isoeasy# A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 46 ms 0 KB
387525190 Aug/18/2026 10:19 hitassmen# A - Ribbon on the Christmas Present C++17 (GCC 7-32) Accepted 46 ms 100 KB
330897972 Jul/26/2025 07:11 rezaul7081 A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 62 ms 100 KB
391102387 Sep/18/2026 10:37 KuroShina A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 31 ms 0 KB
307131601 Feb/21/2025 16:03 UMD RED: misty, Tlatoani, AghaTizi# A - Ribbon on the Christmas Present Kotlin 1.9 Accepted 171 ms 0 KB
330961496 Jul/26/2025 15:43 bkifhr8 A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 62 ms 100 KB
351111224 Nov/29/2025 07:28 dlalswp25# A - Ribbon on the Christmas Present C++20 (GCC 13-64) Accepted 46 ms 0 KB
321311212 May/26/2025 05:23 geek7251 A - Ribbon on the Christmas Present C++17 (GCC 7-32) Accepted 46 ms 100 KB
320182425 May/18/2025 08:05 vjudge.1 A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 77 ms 100 KB
328075479 Jul/08/2025 14:04 Kessoku Band: pyspobo, Kcits970, EN_SA# A - Ribbon on the Christmas Present C++17 (GCC 7-32) Accepted 62 ms 100 KB
300033791 Jan/07/2025 15:31 w1ss A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 62 ms 100 KB
298572852 Dec/26/2024 19:38 drochom A - Ribbon on the Christmas Present Python 3 Accepted 93 ms 0 KB
298573009 Dec/26/2024 19:39 drochom A - Ribbon on the Christmas Present PyPy 3-64 Accepted 92 ms 1300 KB
298633050 Dec/27/2024 10:37 Spad2e A - Ribbon on the Christmas Present C++17 (GCC 7-32) Accepted 77 ms 800 KB
336824097 Sep/04/2025 07:05 hdu25-T7: strange757, gsj_z# A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 62 ms 0 KB
315077761 Apr/12/2025 07:02 heisenburger: whitebear13579, stCYH, charles0123# A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 62 ms 100 KB
301156177 Jan/15/2025 23:45 Markadiusz A - Ribbon on the Christmas Present PyPy 3-64 Accepted 93 ms 1300 KB
298148278 Dec/24/2024 10:42 tanakat01 A - Ribbon on the Christmas Present PyPy 3-64 Accepted 93 ms 700 KB
313071394 Mar/30/2025 07:13 AK_ICPC: James_Zhang, coldcloudv, gy1000# A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 61 ms 100 KB
365450681 Mar/05/2026 12:57 HighStrike300 A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 46 ms 100 KB
353635921 Dec/16/2025 03:07 zzuubbaa A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 46 ms 0 KB
313995933 Apr/05/2025 07:30 Dread.t A - Ribbon on the Christmas Present C++20 (GCC 13-64) Accepted 62 ms 100 KB
372080466 Apr/22/2026 00:58 Flapikqq A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 46 ms 100 KB
298503636 Dec/26/2024 10:24 merom A - Ribbon on the Christmas Present C++17 (GCC 7-32) Accepted 46 ms 100 KB
333795271 Aug/13/2025 15:29 GusBer A - Ribbon on the Christmas Present Python 3 Accepted 92 ms 0 KB
309578302 Mar/09/2025 08:25 () is not a palindrome: Ignotus, yanyanlongxia, SpicyTomato# A - Ribbon on the Christmas Present C++17 (GCC 7-32) Accepted 77 ms 4200 KB
321251655 May/25/2025 16:26 geek7251 A - Ribbon on the Christmas Present C++17 (GCC 7-32) Accepted 46 ms 100 KB
342785339 Oct/09/2025 19:07 matchalover# A - Ribbon on the Christmas Present C++20 (GCC 13-64) Accepted 61 ms 0 KB
361649530 Feb/06/2026 08:30 _ALS_ A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 46 ms 100 KB
300149048 Jan/08/2025 14:40 重生之我在赛场上疯狂玩生死狙击2: forces999, abovecloud, NoirNeko# A - Ribbon on the Christmas Present C++20 (GCC 13-64) Accepted 46 ms 100 KB
311521693 Mar/20/2025 14:41 jeremyjy A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 46 ms 100 KB
396367741 Oct/28/2026 07:30 Blue Moon: yantaro, kssaaaaaaaaaaan, itokoi# A - Ribbon on the Christmas Present C++23 (GCC 14-64, msys2) Accepted 46 ms 0 KB
309918478 Mar/11/2025 08:40 sunren356 A - Ribbon on the Christmas Present C++17 (GCC 7-32) Accepted 46 ms 100 KB
390065334 Sep/09/2026 14:05 dps: haruki291sa, KOI, cdjs1432# A - Ribbon on the Christmas Present C++20 (GCC 13-64) Accepted 46 ms 100 KB
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