| ID | Title | Ratio(AC/submit) |
Date |
| 3362 | 20-Four | 9%(14/155) | Nov 24, 2024 |
| 3353 | Nuevo-Romano | 9%(54/593) | Feb 19, 2022 |
| 3391 | The Bug Sensor Problem | 9%(162/1658) | Sep 1, 2025 |
| 3354 | Connect the Dots | 12%(26/204) | Feb 20, 2022 |
| 3383 | Equation | 15%(17/107) | Sep 5, 2025 |
| 3389 | Kennings | 16%(101/630) | Sep 2, 2025 |
| 3395 | Shift Cipher | 16%(166/1014) | May 27, 2025 |
| 3355 | Boundary Points | 17%(405/2282) | Sep 8, 2025 |
| 3376 | Finding Palindromes | 18%(1251/6746) | Sep 21, 2025 |
| 3329 | Twirl Around | 18%(66/353) | Feb 26, 2023 |
| 3319 | Dragon Slayer Qualification Exam | 19%(163/855) | Jun 23, 2023 |
| 3377 | Ferry Lanes | 19%(1304/6625) | Sep 2, 2025 |
| 3382 | Deciphering | 19%(87/440) | Sep 1, 2025 |
| 3324 | Lucas-Lehmer Test | 20%(176/859) | Dec 7, 2024 |
| 3350 | Bowling for Numbers++ | 21%(221/1043) | Feb 9, 2025 |
| 3323 | Bloxorz II | 22%(266/1157) | Aug 4, 2025 |
| 3318 | Matrix Multiplication | 23%(6236/26792) | Jun 26, 2025 |
| 3375 | Network Connection | 23%(988/4175) | Mar 13, 2025 |
| 3399 | Product | 23%(803/3371) | Sep 1, 2025 |
| 3349 | Snowflake
Snow
Snowflakes | 25%(16072/63180) | Sep 20, 2025 |
| 3378 | Crazy Thairs | 25%(2065/8061) | Feb 2, 2025 |
| 3306 | Busy Airport | 25%(173/673) | Jul 25, 2024 |
| 3309 | Unlucky Luke! | 25%(177/686) | May 13, 2025 |
| 3360 | Take a Walk | 25%(461/1784) | Sep 10, 2025 |
| 3339 | Team Arrangement | 26%(665/2541) | Sep 4, 2025 |
| 3392 | Pitcher Rotation | 26%(168/640) | Sep 1, 2025 |
| 3374 | Cake Share | 26%(862/3261) | Sep 2, 2025 |
| 3351 | Gerrymandering | 26%(176/663) | Apr 20, 2021 |
| 3357 | Oreon | 26%(602/2266) | May 18, 2025 |
| 3380 | Bridges | 27%(613/2229) | Sep 2, 2025 |
| 3379 | Alphabet | 27%(160/574) | Aug 24, 2025 |
| 3388 | Japanese Puzzle | 27%(709/2538) | Sep 8, 2025 |
| 3321 | Apple Tree | 28%(15456/53759) | Sep 23, 2025 |
| 3303 | Halls | 29%(530/1823) | Jul 29, 2024 |
| 3333 | Co-workers from Hell | 29%(407/1390) | May 19, 2025 |
| 3308 | Paratroopers | 29%(2935/10003) | May 13, 2025 |
| 3397 | Click the Lines | 29%(75/255) | Sep 1, 2025 |
| 3384 | Feng Shui | 29%(2270/7706) | Aug 1, 2025 |
| 3305 | Surveillance | 29%(103/348) | Sep 6, 2025 |
| 3385 | Genealogy | 29%(957/3232) | Sep 1, 2025 |
| 3387 | Ideal Frame | 29%(59/199) | Sep 1, 2025 |
| 3358 | Period of an Infinite Binary Expansion | 29%(1309/4409) | Sep 1, 2025 |
| 3367 | Expressions | 29%(1485/4989) | Jul 28, 2025 |
| 3341 | Calculating Taxi Fare | 30%(162/531) | May 27, 2025 |
| 3394 | Route Planning | 30%(362/1183) | Jul 13, 2024 |
| 3322 | Bloxorz I | 30%(3022/9852) | Sep 7, 2025 |
| 3337 | Expression Evaluator | 30%(695/2262) | Nov 1, 2024 |
| 3345 | Bribing FIPA | 30%(2119/6893) | Sep 11, 2025 |
| 3320 | Jessica's Reading Problem | 31%(10078/32361) | Aug 14, 2025 |
| 3381 | Confectionery | 31%(88/282) | Sep 2, 2025 |
| 3304 | Segments | 31%(7968/25442) | Sep 16, 2025 |
| 3301 | Texas Trip | 31%(2388/7593) | Sep 6, 2025 |
| 3336 | ACM Underground | 31%(102/324) | Sep 22, 2025 |
| 3330 | Dr. Podboq or: How We Became Asymmetric | 31%(113/356) | Feb 2, 2025 |
| 3371 | Flesch Reading Ease | 31%(849/2656) | Sep 12, 2023 |
| 3343 | Against Mammoths | 31%(663/2074) | Sep 2, 2025 |
| 3396 | A Scheduling Problem | 32%(108/333) | Sep 2, 2025 |
| 3368 | Frequent values | 33%(10973/32930) | Sep 27, 2025 |
| 3373 | Changing Digits | 33%(1388/4165) | Sep 8, 2025 |
| 3370 | Halloween treats | 33%(4103/12269) | Sep 16, 2025 |
| 3361 | Gaussian Prime Factors | 33%(501/1484) | Sep 1, 2025 |
| 3334 | Connected Gheeves | 34%(406/1173) | May 16, 2023 |
| 3342 | Party at Hali-Bula | 34%(3053/8799) | Sep 5, 2025 |
| 3393 | Lucky and Good Months by Gregorian Calendar | 35%(852/2430) | May 27, 2025 |
| 3340 | Barbara Bennett's Wild Numbers | 36%(1182/3226) | May 27, 2025 |
| 3356 | AGTC | 36%(6208/16782) | Jul 30, 2025 |
| 3344 | Chessboard Dance | 37%(566/1528) | Sep 5, 2025 |
| 3327 | Cut the Cake | 37%(625/1668) | Feb 2, 2025 |
| 3315 | Roofing It | 37%(152/404) | Sep 5, 2025 |
| 3313 | The Mastermind Master's Mind | 37%(105/278) | Sep 1, 2025 |
| 3316 | Snakes on a Plane | 38%(517/1360) | Jul 26, 2024 |
| 3328 | Cliff Climbing | 38%(894/2351) | Sep 1, 2025 |
| 3369 | Grocery store | 38%(660/1718) | Sep 2, 2025 |
| 3317 | Stake Your Claim | 38%(661/1713) | May 20, 2025 |
| 3332 | Parsing Real Numbers | 38%(1092/2815) | Sep 5, 2025 |
| 3335 | Rotating Scoreboard | 39%(4207/10774) | Sep 2, 2025 |
| 3312 | Mahershalalhashbaz, Nebuchadnezzar, and Billy Bob
Benjamin Go to the Regionals | 40%(1071/2622) | May 20, 2025 |
| 3365 | Cylinder | 40%(762/1863) | Oct 17, 2024 |
| 3347 | Kadj Squares | 41%(1932/4699) | Oct 8, 2025 |
| 3307 | Smart Sister | 41%(965/2326) | Aug 2, 2023 |
| 3386 | Halloween Holidays | 42%(1843/4321) | Aug 24, 2025 |
| 3348 | Cows | 42%(6212/14520) | Oct 9, 2025 |
| 3346 | Treasure of the Chimp Island | 44%(363/825) | May 19, 2025 |
| 3310 | Caterpillar | 45%(1398/3105) | Sep 2, 2025 |
| 3398 | Perfect Service | 46%(1218/2637) | Sep 23, 2025 |
| 3314 | Plaque Pack | 47%(486/1024) | Jul 18, 2024 |
| 3300 | Tour de France | 47%(2145/4494) | Nov 24, 2024 |
| 3326 | Analyzing Login/Logout Records | 47%(764/1597) | Sep 16, 2025 |
| 3352 | Road Construction | 48%(9181/18804) | Oct 9, 2025 |
| 3359 | Wordfish | 49%(546/1110) | Aug 15, 2024 |
| 3331 | The Idiot of the Year Contest! | 51%(2150/4186) | Sep 2, 2025 |
| 3311 | Hie with the Pie | 51%(8115/15692) | Aug 29, 2025 |
| 3390 | Print Words in Lines | 53%(927/1732) | Sep 20, 2024 |
| 3366 | Deli Deli | 55%(2420/4379) | Sep 1, 2025 |
| 3372 | Candy Distribution | 55%(4098/7366) | Sep 4, 2025 |
| 3302 | Subsequence | 58%(5122/8809) | Sep 5, 2025 |
| 3338 | Rectangle Cutting | 63%(882/1382) | May 12, 2025 |
| 3363 | Annoying painting tool | 64%(1365/2109) | Mar 17, 2025 |
| 3364 | Black and white painting | 67%(1972/2924) | May 12, 2025 |
| 3325 | ICPC Score Totalizer Software | 70%(5143/7321) | Sep 11, 2025 |
