April Fools Day Contest 2026

Solutions are presented as using the least memory and the fastest execution time. It also takes the top 10 most recent solutions from each language. If you want to limit to a specific index, click the "Solved" button and go to that problem.

ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
2214 April Fools Day Contest 2026 FINISHED False 7200 5412296 April 1, 2026, 2:35 p.m.

Problems

Solved
Index
Name
Type
Tags
Community Tag
Rating
( 764 ) G Anomaly PROGRAMMING *special

We have hidden from you a string of length 11. Given an integer (i), find the (i)-th character of this string. Each test contains multiple test cases. The first line contains the number of test cases (t) ((1 \leq t \leq 20)). The description of the test cases follows. The first line of each test case contains a single integer (i) ((1 \leq i \leq 11)). For each test case, output the (i)-th character. We actually don't intend for this problem to be solvable, so you should go try other problems. Wait for the contest to end and read the editorial. If, somehow, a person gets Accepted through what we deem is unacceptable behaviour, he will be disqualified. We will also take great care in making sure the answer is not leaked anywhere during the contest. After contest update: It seems someone had broken the rules and managed to obtain the solution during the contest. We have disqualified him.

Tutorials

April Fools Day Contest 2026 Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
369288092 Rehxn_khan G April 1, 2026, 8:28 p.m. OK C++17 (GCC 7-32) TESTS 3 15 0
369282510 lakshya072008 G April 1, 2026, 7:13 p.m. OK C++17 (GCC 7-32) TESTS 3 15 0
369280469 ABSOLUTE_01 G April 1, 2026, 6:52 p.m. OK C++17 (GCC 7-32) TESTS 3 15 0
369272016 Sam_zZ G April 1, 2026, 5:44 p.m. OK C++17 (GCC 7-32) TESTS 3 15 0
369266385 MCPlayer542 G April 1, 2026, 5:06 p.m. OK C++17 (GCC 7-32) TESTS 3 15 0
369265254 Photon_ G April 1, 2026, 4:58 p.m. OK C++17 (GCC 7-32) TESTS 3 15 0
369264830 LonggVuz G April 1, 2026, 4:56 p.m. OK C++17 (GCC 7-32) TESTS 3 15 0
369262799 Syntx29 G April 1, 2026, 4:44 p.m. OK C++17 (GCC 7-32) TESTS 3 15 0
369262397 professorik G April 1, 2026, 4:42 p.m. OK C++17 (GCC 7-32) TESTS 3 15 0
369260752 chengheichit G April 1, 2026, 4:34 p.m. OK C++17 (GCC 7-32) TESTS 3 15 0
369312505 fisher199 G April 2, 2026, 5:25 a.m. OK C++20 (GCC 13-64) TESTS 3 15 0
369284445 valavshonok G April 1, 2026, 7:37 p.m. OK C++20 (GCC 13-64) TESTS 3 15 0
369270382 kumar_Tanish05 G April 1, 2026, 5:33 p.m. OK C++20 (GCC 13-64) TESTS 3 15 0
369268231 karmanyagupta1421 G April 1, 2026, 5:18 p.m. OK C++20 (GCC 13-64) TESTS 3 15 0
369264417 pyoro G April 1, 2026, 4:53 p.m. OK C++20 (GCC 13-64) TESTS 3 15 0
369263248 alex.rozhkov.by G April 1, 2026, 4:47 p.m. OK C++20 (GCC 13-64) TESTS 3 15 0
369261688 ezraft G April 1, 2026, 4:39 p.m. OK C++20 (GCC 13-64) TESTS 3 15 0
369257882 ethening G April 1, 2026, 4:31 p.m. OK C++20 (GCC 13-64) TESTS 3 15 0
369254924 vanhcodegioi G April 1, 2026, 4:27 p.m. OK C++20 (GCC 13-64) TESTS 3 15 0
369261231 benben181 G April 1, 2026, 4:36 p.m. OK C++20 (GCC 13-64) TESTS 3 15 102400
369306987 YForr G April 2, 2026, 3:55 a.m. OK C++23 (GCC 14-64, msys2) TESTS 3 0 0
369281555 Yankz_x1 G April 1, 2026, 7:04 p.m. OK C++23 (GCC 14-64, msys2) TESTS 3 0 0
369315852 Isosha G April 2, 2026, 6:07 a.m. OK C++23 (GCC 14-64, msys2) TESTS 3 15 0
369305782 thanhnguyxn07 G April 2, 2026, 3:36 a.m. OK C++23 (GCC 14-64, msys2) TESTS 3 15 0
369304538 Me9w G April 2, 2026, 3:14 a.m. OK C++23 (GCC 14-64, msys2) TESTS 3 15 0
369300621 itslucaslam G April 2, 2026, 1:56 a.m. OK C++23 (GCC 14-64, msys2) TESTS 3 15 0
369300127 Messywind G April 2, 2026, 1:45 a.m. OK C++23 (GCC 14-64, msys2) TESTS 3 15 0
369296195 baodat G April 2, 2026, 12:13 a.m. OK C++23 (GCC 14-64, msys2) TESTS 3 15 0
369295826 DreamChaser G April 1, 2026, 11:56 p.m. OK C++23 (GCC 14-64, msys2) TESTS 3 15 0
369294384 poliglota G April 1, 2026, 10:57 p.m. OK C++23 (GCC 14-64, msys2) TESTS 3 15 0
369290607 alifahmy1 HotDiggityDog Safawt G April 1, 2026, 9:09 p.m. OK Java 21 TESTS 3 171 614400
369304591 NanDemo G April 2, 2026, 3:15 a.m. OK Java 21 TESTS 3 171 921600
369253237 ljt50 G April 1, 2026, 4:25 p.m. OK Java 21 TESTS 3 218 0
369306228 Saumya1708 G April 2, 2026, 3:43 a.m. OK Java 21 TESTS 3 234 614400
369281008 Mantavya21 G April 1, 2026, 6:58 p.m. OK PyPy 3 TESTS 3 46 0
369279498 buddeyc G April 1, 2026, 6:42 p.m. OK PyPy 3 TESTS 3 46 0
369272409 vibezzz G April 1, 2026, 5:47 p.m. OK PyPy 3 TESTS 3 46 0
369265592 mtand872 G April 1, 2026, 5 p.m. OK PyPy 3 TESTS 3 62 0
369287720 sacardonaf G April 1, 2026, 8:23 p.m. OK PyPy 3-64 TESTS 3 31 0
369313159 FallingRain G April 2, 2026, 5:34 a.m. OK PyPy 3-64 TESTS 3 46 0
369306277 __baozii__ G April 2, 2026, 3:44 a.m. OK PyPy 3-64 TESTS 3 46 0
369302110 xTecna G April 2, 2026, 2:30 a.m. OK PyPy 3-64 TESTS 3 46 0
369293314 kirnau17 G April 1, 2026, 10:19 p.m. OK PyPy 3-64 TESTS 3 46 0
369291123 judival30 G April 1, 2026, 9:21 p.m. OK PyPy 3-64 TESTS 3 46 0
369288660 Amogh_Gajera G April 1, 2026, 8:36 p.m. OK PyPy 3-64 TESTS 3 46 0
369276763 TanJWcode G April 1, 2026, 6:20 p.m. OK PyPy 3-64 TESTS 3 46 0
369272926 PsychoPinkQ G April 1, 2026, 5:51 p.m. OK PyPy 3-64 TESTS 3 46 0
369270719 TMQuitten G April 1, 2026, 5:35 p.m. OK PyPy 3-64 TESTS 3 46 0
369283419 Yug_Gabani G April 1, 2026, 7:24 p.m. OK Python 2 TESTS 3 31 0
369270091 tanishhhh G April 1, 2026, 5:31 p.m. OK Python 3 TESTS 3 15 102400
369268920 adityano1 G April 1, 2026, 5:23 p.m. OK Python 3 TESTS 3 15 102400
369300436 Alan233 G April 2, 2026, 1:52 a.m. OK Python 3 TESTS 3 31 0
369259174 DatHam G April 1, 2026, 4:33 p.m. OK Python 3 TESTS 3 31 0
369300505 VSS402928Mohd.Abdullah G April 2, 2026, 1:54 a.m. OK Python 3 TESTS 3 31 102400
369277224 n4n4 G April 1, 2026, 6:23 p.m. OK Python 3 TESTS 3 46 0
369265453 chithanh_nguyen G April 1, 2026, 5 p.m. OK Python 3 TESTS 3 46 0
369263957 YhuanDebeste G April 1, 2026, 4:50 p.m. OK Python 3 TESTS 3 46 0
369252321 twotilde G April 1, 2026, 4:24 p.m. OK Python 3 TESTS 3 46 0
369263794 sourabhkumardubey200 G April 1, 2026, 4:49 p.m. OK Python 3 TESTS 3 62 0

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