Problems
| Problem Name | Code | Points | Users | AC Rate | Date Added |
|---|---|---|---|---|---|
| WC95 - Round Numbers | wc95p2 | 15p | 28 | 6.09% | 2008-09-29 |
| WC95 - Smallest Latin Square | wc95p3 | 10 | 40 | 37.67% | 2008-09-29 |
| WC95 - Factorial Power | wc95p5 | 5 | 89 | 25.23% | 2008-09-29 |
| WC95 - Coded Message | wc95p1 | 7 | 52 | 10.44% | 2008-09-29 |
| WC95 - Wildcard | wc95p4 | 10 | 24 | 38.96% | 2008-09-29 |
| WC96 - Fishes in a Tank | wc96p1 | 5 | 35 | 24.00% | 2008-09-29 |
| WC96 - Row and Column | wc96p2 | 7 | 32 | 13.60% | 2008-09-29 |
| WC96 - Hidden Geography | wc96p3 | 5 | 102 | 30.36% | 2008-09-29 |
| WC96 - Plentiful Paths | wc96p5 | 10 | 165 | 35.51% | 2008-09-30 |
| WC96 - Bases Multiplication | wc96p6 | 5 | 93 | 32.46% | 2008-09-29 |
| WC97 - Searching Quickly | wc97p1 | 10 | 9 | 22.50% | 2008-09-28 |
| WC97 - Encoding Grid | wc97p5 | 20 | 1 | 6.25% | 2008-09-28 |
| WC97 - Power of Cryptography | wc97p2 | 20 | 12 | 13.83% | 2008-09-28 |
| WC97 - Stacks of Flapjacks | wc97p3 | 15p | 2 | 8.57% | 2008-09-28 |
| WC97 - Typing | wc97p4 | 5 | 200 | 29.31% | 2008-09-28 |
| WC98 - Optical Recognition | wc98p1 | 10 | 3 | 60.00% | 2008-09-29 |
| WC98 - The Hutts Strike Back | wc98p2 | 10 | 6 | 50.00% | 2008-09-29 |
| WC98 - GATTACA | wc98p4 | 20p | 6 | 11.43% | 2008-09-29 |
| WC98 - Y2K | wc98p5 | 10 | 29 | 36.11% | 2008-09-29 |
| WC98 - Return of the Plachta | wc98p6 | 10 | 124 | 21.55% | 2008-09-29 |
| WC98 - Do or Do Not | wc98p3 | 10 | 17 | 39.53% | 2008-09-29 |
| WC99 - The Matrix | wc99p1 | 5 | 34 | 33.83% | 2008-09-29 |
| WC99 - Mission Impossible | wc99p2 | 10 | 51 | 19.46% | 2008-09-29 |
| WC99 - The Godfather | wc99p3 | 10 | 24 | 31.25% | 2008-09-29 |
| WC99 - Goldfinger | wc99p4 | 10 | 80 | 31.49% | 2008-09-29 |
| WC99 - Good Will Hunting | wc99p5 | 10 | 77 | 18.36% | 2008-09-29 |
| WC99 - Fight Club | wc99p6 | 10 | 32 | 29.31% | 2008-09-29 |
| WC99 - The Rock | wc99p7 | 15 | 26 | 26.40% | 2008-09-28 |
| WC99 - S - World | wc99Sp1 | 25p | 23 | 15.79% | 2008-10-07 |
| WC99 - S - Message | wc99Sp3 | 25 | 5 | 75.00% | 2008-09-29 |
| WC99 - S - Good Ethan Hunt | wc99Sp4 | 25 | 11 | 15.08% | 2008-09-30 |
| WC99 - S - Star Wars | wc99Sp5 | 25 | 11 | 42.86% | 2008-10-01 |
| WC99 - S - Wedding Juicer | wc99Sp6 | 25 | 30 | 15.30% | 2008-09-28 |
| WC99 - S - Good Hunting Will | wc99Sp2 | 20p | 1 | 0.45% | 2008-10-19 |
| WC01 - The Rock | wc01p1 | 7 | 16 | 87.50% | 2008-11-23 |
| WC01 - The Island Of Dr. Strangelove | wc01p2 | 10 | 5 | 35.00% | 2008-11-23 |
| WC01 - Back to the Future | wc01p3 | 5 | 99 | 62.72% | 2008-11-23 |
| WC01 - Cool Runnings | wc01p4 | 10 | 16 | 26.76% | 2008-11-23 |
| WC01 - The Man With The Golden Eye | wc01p5 | 10 | 15 | 15.49% | 2008-11-23 |
| WC01 - Mission Impossible 3 | wc01p6 | 10p | 62 | 10.07% | 2008-11-23 |
| WC01 - The Sixth Sense | wc01p7 | 15 | 3 | 14.81% | 2008-11-25 |
| WC01 - Time to Get Medieval | wc01p8 | 10 | 30 | 35.76% | 2008-11-23 |
| WC01 - The Thirteenth Floor | wc01p9 | 20 | 4 | 19.05% | 2008-11-23 |
| WC01 - S - Survivor | wc01Sp1 | 10 | 10 | 15.38% | 2008-12-05 |
| WC01 - S - Temptation Island | wc01Sp2 | 10 | 26 | 29.77% | 2008-12-05 |
| WC01 - S - Big Brother | wc01Sp4 | 20 | 4 | 6.58% | 2008-12-05 |
| WC01 - S - The Mole | wc01Sp5 | 20p | 7 | 36.00% | 2008-12-05 |
| WC01 - S - Blind Date | wc01Sp6 | 20p | 6 | 20.00% | 2008-12-05 |
| WC01 - S - Regis | wc01Sp3 | 7 | 30 | 23.53% | 2008-12-05 |
| WC02 - A Planning Session | wc02p1 | 5 | 53 | 15.95% | 2008-09-30 |
| WC02 - The Final Battle | wc02p10 | 10 | 14 | 21.62% | 2008-09-30 |
| WC02 - Cow-bot | wc02p2 | 10 | 45 | 21.03% | 2008-09-30 |
| WC02 - It's Party Time | wc02p4 | 5 | 72 | 25.82% | 2008-09-30 |
| WC02 - Intercepted Cowmmunication | wc02p5 | 5 | 49 | 36.99% | 2008-09-30 |
| WC02 - Obstacles Galore | wc02p6 | 10 | 11 | 15.12% | 2008-09-30 |
| WC02 - Old Macdonald's Farm | wc02p7 | 10 | 32 | 29.37% | 2008-09-30 |
| WC02 - S - Dark Lord | wc02Sp1 | 25 | 15 | 12.34% | 2008-10-05 |
| WC02 - S - Klingon Roulette | wc02Sp2 | 25 | 5 | 15.00% | 2008-10-09 |
| WC02 - S - Evil Tasks | wc02Sp3 | 25 | 2 | 33.33% | 2008-10-09 |
| WC02 - The Big Book of Recipes | wc02p3 | 10 | 3 | 3.95% | 2008-09-30 |
| WC02 - Deploying Troops | wc02p8 | 10 | 42 | 29.13% | 2008-09-30 |
| WC02 - A Nerd's Preparation | wc02p9 | 20p | 2 | 2.07% | 2008-10-01 |
| WC02 - S - The Spell of Lord Ruru | wc02Sp4 | 25 | 4 | 18.92% | 2008-10-05 |
| WC02 - S - The Mines of Moria | wc02Sp5 | 25 | 1 | 5.26% | 2008-10-10 |
| Strategy Meeting | wc07p3 | 10p | 49 | 15.15% | 2010-08-26 |
| BitStrings | wc07p5 | 10p | 28 | 29.85% | 2010-08-25 |
| Drain Game | wc07p4 | 15p | 8 | 11.40% | 2010-08-31 |
| WC15 #1 - Do You Know Your Woburn Colours? | wc151j1 | 3 | 316 | 41.46% | 2015-10-17 |
| WC15 #1 - Grouping Recruits | wc151j2 | 5 | 132 | 31.39% | 2015-10-17 |
| WC15 #1 - Jazz Concert | wc151j3 | 5 | 167 | 46.17% | 2015-10-17 |
| WC15 #1 - Trip Budgeting | wc151j4 | 10 | 34 | 9.60% | 2015-10-17 |
| WC15 #1 - Woburn Workload | wc151s1 | 7 | 108 | 41.49% | 2015-10-17 |
| WC15 #1 - Wildcat Wildcards | wc151s2 | 10p | 50 | 9.08% | 2015-10-17 |
| WC15 #1 - Contest Sites | wc151s3 | 17p | 40 | 9.16% | 2015-10-17 |
| WC15 #1 - Chocolate Milk | wc151s4 | 20p | 43 | 31.33% | 2015-10-17 |
| WC15 #2 - A New Hope | wc152j1 | 3 | 210 | 49.89% | 2015-12-12 |
| WC15 #2 - The Empire Strikes Back | wc152j2 | 5 | 154 | 68.94% | 2015-12-12 |
| WC15 #2 - Return of the Jedi | wc152j3 | 5 | 58 | 26.48% | 2015-12-12 |
| WC15 #2 - The Force Awakens (Junior) | wc152j4 | 15p | 9 | 1.98% | 2015-12-12 |
| WC15 #2 - The Phantom Menace | wc152s1 | 7 | 96 | 45.04% | 2015-12-12 |
| WC15 #2 - Attack of the Clones | wc152s2 | 12p | 20 | 8.04% | 2015-12-12 |
| WC15 #2 - Revenge of the Sith | wc152s3 | 15p | 22 | 11.42% | 2015-12-12 |
| WC15 #2 - The Force Awakens (Senior) | wc152s4 | 30p | 8 | 6.50% | 2015-12-12 |
| WC15 #3 - Battle Predictions | wc153j1 | 3 | 132 | 39.77% | 2016-02-13 |
| WC15 #3 - Electroshock Therapy | wc153j2 | 5 | 75 | 49.37% | 2016-02-13 |
| WC15 #3 - Red Sun Simulator | wc153j3 | 10p | 21 | 7.44% | 2016-02-13 |
| WC15 #3 - LexCorp Infiltration | wc153j4 | 15p | 13 | 11.43% | 2016-02-13 |
| WC15 #3 - Energy Absorption | wc153s1 | 7p | 32 | 12.97% | 2016-02-13 |
| WC15 #3 - Detective Work | wc153s2 | 10 | 33 | 33.33% | 2016-02-13 |
| WC15 #3 - Rescue Mission | wc153s3 | 15p | 14 | 17.00% | 2016-02-13 |
| WC15 #3 - Lex Luthor's Landmines | wc153s4 | 30p | 8 | 4.62% | 2016-02-13 |
| WC15 #4 - Telling Time | wc154j1 | 3 | 102 | 54.46% | 2016-04-08 |
| WC15 #4 - Mission Briefing | wc154j2 | 7 | 75 | 40.00% | 2016-04-08 |
| WC15 #4 - Target Practice | wc154j4 | 12p | 32 | 22.40% | 2016-04-08 |
| WC15 #4 - Shootout | wc154s1 | 7p | 41 | 29.65% | 2016-04-08 |
| WC15 #4 - World Tour | wc154s2 | 12p | 27 | 31.68% | 2016-04-08 |
| WC15 #4 - Coded Paper | wc154s3 | 17p | 18 | 18.87% | 2016-04-08 |
| WC15 #4 - Stakeout | wc154s4 | 20p | 16 | 13.89% | 2016-04-08 |
| WC15 Finals - Vertical Posting | wc15fj1 | 3 | 132 | 48.32% | 2016-05-07 |
| WC15 Finals - The Oxford Comma | wc15fj2 | 5 | 30 | 14.40% | 2016-05-07 |
| WC15 Finals - Fuzzbiz | wc15fs1 | 7p | 17 | 19.80% | 2016-05-07 |
| WC15 Finals - Hydration | wc15fs2 | 10p | 22 | 21.17% | 2016-05-07 |
| WC15 Finals - Driving Range | wc15fs3 | 15p | 11 | 15.28% | 2016-05-07 |
| WC15 Finals - Server Hacking | wc15fs4 | 20p | 20 | 11.67% | 2016-05-07 |
| WC15 Finals - Supply Chain | wc15fs5 | 30p | 3 | 12.50% | 2016-05-07 |
| WC16 #1 - A Spooky Season | wc161j1 | 3 | 188 | 60.12% | 2016-10-16 |
| WC16 #1 - Frankenstein's Monster | wc161j2 | 5 | 57 | 7.95% | 2016-10-16 |
| WC16 #1 - Hide and Seek | wc161s1 | 10p | 28 | 10.00% | 2016-10-16 |
| WC16 #1 - Alucard's Quest | wc161s2 | 10p | 45 | 27.13% | 2016-10-16 |
| WC16 #1 - Tricky's Treats | wc161s3 | 12p | 23 | 24.17% | 2016-10-16 |
| WC16 #1 - TP | wc161s4 | 12p | 24 | 38.38% | 2016-10-16 |
| WC16 #2 - The Perfect Mate | wc162j1 | 5 | 65 | 31.67% | 2016-12-11 |
| WC16 #2 - EHC | wc162j2 | 7p | 18 | 9.74% | 2016-12-11 |
| WC16 #2 - Most Illogical | wc162s1 | 10p | 52 | 31.11% | 2016-12-11 |
| WC16 #2 - Away Mission | wc162s2 | 12p | 23 | 18.94% | 2016-12-11 |
| WC16 #2 - Turbolift Testing | wc162s3 | 15p | 16 | 12.98% | 2016-12-11 |
| WC16 #2 - Diplomacy | wc162s4 | 17p | 11 | 12.62% | 2016-12-11 |
| WC16 #3 - The Elite N | wc163j1 | 7p | 23 | 16.34% | 2017-02-19 |
| WC16 #3 - Pokéwarehouses | wc163j2 | 7p | 8 | 6.25% | 2017-02-19 |
| WC16 #3 - Cutting Edge | wc163s1 | 7p | 23 | 9.23% | 2017-02-19 |
| WC16 #3 - Training Regimen | wc163s2 | 12p | 24 | 16.23% | 2017-02-19 |
| WC16 #3 - Puzzle Rooms | wc163s3 | 15p | 5 | 4.46% | 2017-02-19 |
| WC16 #3 - Replay Value | wc163s4 | 15p | 19 | 14.60% | 2017-02-19 |
| WC16 #4 - Anyone Can Be Anything | wc164j1 | 5p | 51 | 59.30% | 2017-04-09 |
| WC16 #4 - You're Dead! | wc164j2 | 7p | 29 | 26.09% | 2017-04-09 |
| WC16 #4 - Parking Duty | wc164s1 | 10p | 20 | 20.00% | 2017-04-09 |
| WC16 #4 - Pawpsicles | wc164s2 | 12p | 26 | 25.89% | 2017-04-09 |
| WC16 #4 - Night Howlers | wc164s3 | 14p | 19 | 16.77% | 2017-04-09 |
| WC16 #4 - Hopps and Wilde on the Case | wc164s4 | 15p | 15 | 12.68% | 2017-04-09 |
| WC16 Finals - Fencing | wc16fj1 | 5p | 33 | 61.82% | 2017-05-07 |
| WC16 Finals - Enigmoo | wc16fj2 | 5p | 20 | 26.32% | 2017-05-07 |
| WC16 Finals - Cow-Bot Construction | wc16fs1 | 7p | 20 | 36.51% | 2017-05-07 |
| WC16 Finals - Rational Recipes | wc16fs2 | 10p | 19 | 23.47% | 2017-05-07 |
| WC16 Finals - Privacy | wc16fs3 | 12p | 26 | 42.86% | 2017-05-07 |
| WC16 Finals - Bug Infestation | wc16fs4 | 20p | 10 | 12.85% | 2017-05-07 |
| WC16 Finals - Bovine Grenadiers | wc16fs5 | 25p | 5 | 9.38% | 2017-05-07 |
| WC17 #1 - Canadian Accent | wc171j1 | 3 | 147 | 73.73% | 2018-01-26 |
| WC17 #1 - How's the Weather? | wc171j2 | 3 | 122 | 57.59% | 2018-01-26 |
| WC17 #1 - Stanley | wc171j3 | 5 | 106 | 52.38% | 2018-01-26 |
| WC17 #1 - Canuck Detection | wc171j4 | 5p | 68 | 39.33% | 2018-01-26 |
| WC17 #1 - On the Rocks | wc171s1 | 7p | 73 | 30.68% | 2018-01-26 |
| WC17 #1 - Ride the Rocket | wc171s2 | 11p | 25 | 28.89% | 2018-01-26 |
| WC17 #1 - Crosscountry Canada | wc171s3 | 12p | 21 | 28.57% | 2018-01-26 |
| WC17 #1 - Change | wc171s4 | 16p | 6 | 5.83% | 2018-01-26 |
| WC17 #2 - The Rings of Power | wc172j1 | 3 | 77 | 87.10% | 2018-02-23 |
| WC17 #2 - Breeding an Army | wc172j2 | 5 | 58 | 45.83% | 2018-02-23 |
| WC17 #2 - Escaping the Mines | wc172j3 | 5 | 44 | 35.92% | 2018-02-23 |
| WC17 #2 - Entish Translation | wc172j4 | 7p | 21 | 20.97% | 2018-02-23 |
| WC17 #2 - Keeping Score | wc172s1 | 10p | 35 | 30.16% | 2018-02-23 |
| WC17 #2 - Don't Follow the Lights | wc172s2 | 12p | 27 | 37.17% | 2018-02-23 |
| WC17 #2 - Battle of the Pelennor FIelds | wc172s3 | 13p | 14 | 14.53% | 2018-02-23 |
| WC17 #2 - One Does Not Simply Walk Into Mordor | wc172s4 | 16p | 4 | 7.50% | 2018-02-23 |
| WC17 #3 - Like, Comment, and Subscribe! | wc173j1 | 3 | 55 | 42.96% | 2018-03-23 |
| WC17 #3 - Certified Fresh | wc173j2 | 5 | 36 | 43.90% | 2018-03-23 |
| WC17 #3 - Uncrackable | wc173j3 | 5 | 32 | 37.23% | 2018-03-23 |
| WC17 #3 - Meme Generator | wc173j4 | 7 | 13 | 18.29% | 2018-03-23 |
| WC17 #3 - Mutual Friends | wc173s1 | 10p | 21 | 24.49% | 2018-03-23 |
| WC17 #3 - GleamingProudChickenFunRun | wc173s2 | 12p | 10 | 6.67% | 2018-03-23 |
| WC17 #3 - Down for Maintenance | wc173s3 | 15p | 6 | 18.37% | 2018-03-23 |
| WC17 #3 - Relevant Results | wc173s4 | 20p | 3 | 10.20% | 2018-03-23 |
| WC17 #4 - Fight or Flight | wc174j1 | 3 | 90 | 78.99% | 2018-04-20 |
| WC17 #4 - Anger Management | wc174j2 | 5 | 42 | 60.26% | 2018-04-20 |
| WC17 #4 - The Infinity Stones | wc174j3 | 5p | 48 | 72.46% | 2018-04-20 |
| WC17 #4 - Efficiency | wc174j4 | 7 | 37 | 44.00% | 2018-04-20 |
| WC17 #4 - Wakandan Sabotage | wc174s1 | 11p | 22 | 17.42% | 2018-04-20 |
| WC17 #4 - Strange Travels | wc174s2 | 12p | 27 | 39.44% | 2018-04-20 |
| WC17 #4 - Guardians of the Cash | wc174s3 | 15p | 6 | 8.43% | 2018-04-20 |
| WC17 #4 - Alpha Nerd | wc174s4 | 18p | 4 | 13.51% | 2018-04-20 |
| WC17 Finals - Cownterintelligence | wc17fj1 | 5p | 37 | 46.67% | 2018-05-13 |
| WC17 Finals - Redundant Formations | wc17fj2 | 7p | 29 | 19.17% | 2018-05-13 |
| WC17 Finals - An Interspecific Army | wc17fs1 | 10p | 70 | 80.22% | 2018-05-13 |
| WC17 Finals - Cowmmunication Network | wc17fs2 | 12p | 25 | 37.38% | 2018-05-13 |
| WC17 Finals - Explosive Ordinance Disposal | wc17fs3 | 15p | 15 | 19.38% | 2018-05-13 |
| WC17 Finals - Ultimatum | wc17fs4 | 17p | 11 | 9.68% | 2018-05-13 |
| WC17 Finals - Crop Rectangles | wc17fs5 | 25p | 1 | 0.85% | 2018-05-13 |
| WC18 #1 - Homework | wc181j1 | 3p | 77 | 55.23% | 2018-11-17 |
| WC18 #1 - Making the Cut | wc181j2 | 3p | 63 | 59.82% | 2018-11-17 |
| WC18 #1 - Comparing Grades | wc181j3 | 5p | 60 | 48.48% | 2018-11-17 |
| WC18 #1 - Germaphobia | wc181j4 | 7p | 48 | 41.60% | 2018-11-17 |
| WC18 #1 - Inspiration | wc181s1 | 7p | 50 | 27.55% | 2018-11-17 |
| WC18 #1 - Essay Generator | wc181s2 | 10p | 53 | 31.96% | 2018-11-17 |
| WC18 #1 - Reach for the Top | wc181s3 | 12p | 18 | 10.16% | 2018-11-17 |
| WC18 #1 - Bad Influence | wc181s4 | 15p | 13 | 10.00% | 2018-11-17 |
| WC18 #2 - Alternate Access | wc182j1 | 3p | 51 | 57.14% | 2018-12-14 |
| WC18 #2 - This Message will Self-Destruct | wc182j2 | 3p | 57 | 75.00% | 2018-12-14 |
| WC18 #2 - Seeing Double | wc182j3 | 5p | 52 | 47.79% | 2018-12-14 |
| WC18 #2 - Ammunition | wc182j4 | 7p | 28 | 17.62% | 2018-12-14 |
| WC18 #2 - Laser Grid | wc182s1 | 7p | 47 | 52.75% | 2018-12-14 |
| WC18 #2 - Plutonium | wc182s2 | 12p | 23 | 9.83% | 2018-12-14 |
| WC18 #2 - Multitasking | wc182s3 | 15p | 11 | 13.77% | 2018-12-14 |
| WC18 #2 - Car Convergence Chaos | wc182s4 | 25p | 2 | 5.00% | 2018-12-14 |
| WC18 #3 - An Honest Day's Work | wc183j1 | 3p | 55 | 58.51% | 2019-02-01 |
| WC18 #3 - Net Weight | wc183j2 | 5p | 36 | 23.84% | 2019-02-01 |
| WC18 #3 - R | wc183j3 | 5p | 34 | 79.07% | 2019-02-01 |
| WC18 #3 - Leveling Up | wc183j4 | 7p | 17 | 19.54% | 2019-02-01 |
| WC18 #3 - The Perfect Team | wc183s1 | 10p | 40 | 50.00% | 2019-02-01 |
| WC18 #3 - Gym Tour | wc183s2 | 12p | 24 | 22.94% | 2019-02-01 |
| WC18 #3 - Counterpicking | wc183s3 | 15p | 9 | 7.25% | 2019-02-01 |
| WC18 #3 - Holey Travels | wc183s4 | 20p | 1 | 1.03% | 2019-02-01 |
| WC18 #4 - A Fistful of Quarters | wc184j1 | 5p | 25 | 56.52% | 2019-03-22 |
| WC18 #4 - Life Insurance | wc184j2 | 5p | 17 | 54.84% | 2019-03-22 |
| WC18 #4 - Inventory | wc184j3 | 5p | 12 | 17.91% | 2019-03-22 |
| WC18 #4 - Your Name, Please | wc184j4 | 7p | 5 | 7.53% | 2019-03-22 |
| WC18 #4 - World of StarCraft | wc184s1 | 10p | 38 | 52.70% | 2019-03-22 |
| WC18 #4 - Farming Simulator | wc184s2 | 14p | 13 | 17.50% | 2019-03-22 |
| WC18 #4 - Dance Royale | wc184s3 | 15p | 17 | 12.59% | 2019-03-22 |
| WC18 #4 - Super Luigi Odyssey | wc184s4 | 25p | 3 | 12.16% | 2019-03-22 |
