Problems
| Problem Name | Code | Points | Users | AC Rate | Date Added |
|---|---|---|---|---|---|
| CCC10S1 - Computer Purchase | ccc10s1 | 5 | 178 | 19.08% | 2010-02-23 |
| CCC10S2 - Huffman Encoding | ccc10s2 | 5 | 185 | 50.82% | 2010-02-23 |
| CCC10S3 - Firehose | ccc10s3 | 15p | 94 | 27.16% | 2010-02-23 |
| CCC10S4 - Animal Farm | ccc10s4 | 15p | 76 | 26.26% | 2010-02-23 |
| CCC10S5 - Nutrient Tree | ccc10s5 | 20p | 50 | 16.56% | 2010-02-23 |
| CCC10 Stage 2 - Barking Dogs! | ccc10s2p1 | 10 | 57 | 28.00% | 2010-05-19 |
| CCC10 Stage 2 - Tree Pruning | ccc10s2p2 | 15p | 67 | 24.94% | 2010-05-19 |
| CCC10 Stage 2 - Computer Purchase Return | ccc10s2p4 | 10 | 82 | 31.99% | 2010-05-19 |
| CCC10 Stage 2 - Shuffle | ccc10s2p6 | 10 | 51 | 39.22% | 2010-05-19 |
| CCC10 Stage 2 - Wowow | ccc10s2p3 | 20p | 85 | 20.68% | 2010-05-19 |
| CCC10 Stage 2 - Space Miner | ccc10s2p5 | 15 | 34 | 34.57% | 2010-05-19 |
| CCC11S1 - English or French? | ccc11s1 | 5 | 433 | 24.73% | 2011-03-01 |
| CCC11J1 - Which Alien? | ccc11j1 | 3 | 878 | 31.59% | 2011-03-01 |
| CCC11J2 - Who Has Seen the Wind | ccc11j2 | 5 | 318 | 29.85% | 2011-03-01 |
| CCC11S2 - Multiple Choice | ccc11s2 | 5 | 535 | 52.76% | 2011-03-01 |
| CCC11J3 - Sumac Sequences | ccc11j3 | 5 | 347 | 36.68% | 2011-03-01 |
| CCC11S3 - Alice Through the Looking Glass | ccc11s3 | 10p | 129 | 31.22% | 2011-03-01 |
| CCC11J4 - Boring Business | ccc11j4 | 7 | 168 | 25.80% | 2011-03-01 |
| CCC11S4 - Blood Distribution | ccc11s4 | 7 | 86 | 39.33% | 2011-03-01 |
| CCC11J5 - Unfriend | ccc11j5 | 7 | 105 | 39.75% | 2011-03-01 |
| CCC11S5 - Switch | ccc11s5 | 12p | 64 | 18.46% | 2011-03-01 |
| CCC11 Stage 2 - Putnam | ccc11s2p1 | 7 | 50 | 25.90% | 2011-06-05 |
| CCC11 Stage 2 - Vampire Tunnels | ccc11s2p2 | 15p | 88 | 15.14% | 2011-06-05 |
| CCC11 Stage 2 - Spies Like Us | ccc11s2p3 | 10p | 55 | 29.78% | 2011-06-06 |
| CCC11 Stage 2 - Reorganization | ccc11s2p4 | 15p | 50 | 28.74% | 2011-06-06 |
| CCC11 Stage 2 - Fixing Disks | ccc11s2p5 | 40p | 2 | 8.11% | 2011-06-07 |
| CCC11 Stage 2 - Biggest (Zero Carbon) Footprint | ccc11s2p6 | 25p | 32 | 10.33% | 2011-06-06 |
| CCC12J1 - Speed fines are not fine! | ccc12j1 | 3 | 625 | 32.82% | 2012-02-29 |
| CCC12J2 - Sounds fishy! | ccc12j2 | 3 | 502 | 26.95% | 2012-02-29 |
| CCC12J3 - Icon Scaling | ccc12j3 | 5 | 332 | 61.14% | 2012-02-29 |
| CCC12J4 - Big Bang Secrets | ccc12j4 | 5 | 269 | 61.98% | 2012-02-29 |
| CCC12J5 - A Coin Game | ccc12j5 | 10 | 67 | 36.21% | 2012-02-29 |
| CCC12S1 - Don't pass me the ball! | ccc12s1 | 3 | 285 | 59.09% | 2012-02-29 |
| CCC12S2 - Aromatic Numbers | ccc12s2 | 5 | 176 | 47.48% | 2012-02-29 |
| CCC12S3 - Absolutely Acidic | ccc12s3 | 7 | 190 | 22.45% | 2012-02-29 |
| CCC12S4 - A Coin Game | ccc12s4 | 15 | 91 | 39.12% | 2012-02-29 |
| CCC12S5 - Mouse Journey | ccc12s5 | 10p | 252 | 40.64% | 2012-02-29 |
| CCC12 Stage 2 - Choose Your Own Arithmetic | ccc12s2p1 | 7 | 68 | 21.46% | 2012-06-20 |
| CCC12 Stage 2 - Hungary Games | ccc12s2p2 | 15p | 83 | 22.03% | 2012-06-20 |
| CCC12 Stage 2 - Mhocskian Languages | ccc12s2p3 | 20p | 39 | 32.40% | 2012-06-20 |
| CCC12 Stage 2 - Editor Distance | ccc12s2p4 | 10 | 48 | 37.13% | 2012-06-20 |
| CCC12 Stage 2 - Sample Size | ccc12s2p5 | 10 | 57 | 26.40% | 2012-06-20 |
| CCC12 Stage 2 - The Winds of War | ccc12s2p6 | 30p | 20 | 11.20% | 2012-06-20 |
| CCC13J1 - Next in Line | ccc13j1 | 3 | 601 | 62.75% | 2013-05-18 |
| CCC13J2 - Rotating Letters | ccc13j2 | 5 | 470 | 42.45% | 2013-05-18 |
| CCC13J4 - Time on task | ccc13j4 | 5 | 359 | 43.04% | 2013-05-19 |
| CCC13J3S1 - From 1987 to 2013 | ccc13s1 | 5 | 307 | 43.26% | 2013-05-18 |
| CCC13S2 - Bridge Transport | ccc13s2 | 5 | 212 | 23.23% | 2013-05-19 |
| CCC13J5S3 - Chances of Winning | ccc13s3 | 12 | 141 | 35.60% | 2013-05-19 |
| CCC13S4 - Who is Taller? | ccc13s4 | 10 | 155 | 22.51% | 2013-05-19 |
