CCC Junior 12-20年题目
| Problem ID | Title | Source/Category | AC | Submit | |
| 4162 Problem A | CCC 比赛规则(此题不要提交) | CCC | 3 | 12 | |
| 4165 Problem B | CCC'20 J1-DogTreats | CCC | 11 | 40 | |
| 4166 Problem C | CCC'20 J2-Epidemiology | CCC | 11 | 42 | |
| 4167 Problem D | CCC'20 J3-Art | CCC | 3 | 7 | |
| 4168 Problem E | CCC'20 J4- CyclicShifts | CCC | 2 | 11 | |
| 4169 Problem F | CCC'20 J5S2- EscapeRoom | CCC | 1 | 5 | |
| 3945 Problem G | CCC19J1 WinningScore | CCC | 21 | 38 | |
| 3946 Problem H | CCC19J2 Time to Decompress | CCC | 16 | 34 | |
| 3947 Problem I | CCC19J3 Cold Compres | CCC | 4 | 25 | |
| 3948 Problem J | CCC19J4 Flipper | CCC | 12 | 26 | |
| 3949 Problem K | CCC19J5 Rule of Three | CCC | 0 | 0 | |
| 3930 Problem L | CCC18J1 Telemarketer or not? | CCC 选择结构 | 11 | 30 | |
| 3931 Problem M | CCC18J2 Occupy parking | CCC 数组 | 10 | 16 | |
| 3932 Problem N | CCC18J3 Are we there yet? | CCC 输入输出 | 6 | 11 | |
| 3933 Problem O | CCC18J4 Sunflowers | CCC 输入输出 | 3 | 13 | |
| 3934 Problem P | CCC18J5 Choose your own path | CCC 图论 广度优先 | 2 | 14 | |
| 3966 Problem Q | CCC17J1 Quadrant Selection | CCC | 12 | 18 | |
| 3967 Problem R | CCC17J2 Shifty Sum | CCC | 8 | 18 | |
| 3968 Problem S | CCC17J3 Exactly Electrical | CCC | 17 | 38 | |
| 3969 Problem T | CCC17J4 Favourite Times | CCC | 7 | 25 | |
| 3929 Problem U | CCC17J5 Nailed It! | 循环 CCC | 1 | 3 | |
| 3940 Problem V | CCC16J1 TournamentSelection | CCC | 2 | 20 | |
| 3941 Problem W | CCC16J2 MagicSquares | CCC | 6 | 10 | |
| 3942 Problem X | CCC16J3 HiddenPalindrome | CCC | 1 | 4 | |
| 3943 Problem Y | CCC16J4 ArrivalTime | CCC | 5 | 15 | |
| 3944 Problem Z | CCC16J5 TandemBicycle | CCC 贪心 | 5 | 8 | |
| 3970 Problem a | CCC15J1 Special Day | CCC | 4 | 14 | |
| 3971 Problem b | CCC15J2 Happy or Sad | CCC | 7 | 21 | |
| 3972 Problem c | CCC15J3 Rovarspraket | CCC | 3 | 5 | |
| 3973 Problem d | CCC15J4 Wait Time | CCC | 2 | 2 | |
| 3974 Problem e | CCC15J5 π-day | CCC | 0 | 0 | |
| 3956 Problem f | CCC14J1 Triangle Times | CCC 选择结构 | 9 | 14 | |
| 3957 Problem g | CCC14J2 Vote Count | CCC 选择结构 | 5 | 6 | |
| 4013 Problem h | CCC14J3 Double Dice | CCC 模拟 | 5 | 11 | |
| 3958 Problem i | CCC14J4 Party Invitation | CCC 数组 | 1 | 7 | |
| 3959 Problem j | CCC14J5 Assigning Partners | CCC 数组 | 4 | 12 | |
| 4151 Problem k | CCC '13 J1 - Next in line | CCC | 5 | 5 | |
| 4152 Problem l | CCC '13 J2 - Rotating letters | CCC | 4 | 6 | |
| 4110 Problem m | CCC '13 J3 - From 1987 to 2013 | CCC | 9 | 15 | |
| 4153 Problem n | CCC '13 J4 - Time on task | CCC 贪心 | 8 | 11 | |
| 4096 Problem o | CCC '13 J5S3 - Chances of Winning | CCC | 0 | 0 | |
| 4148 Problem p | CCC '12 J1 - Speed fines are not fine! | CCC | 5 | 20 | |
| 4149 Problem q | CCC '12 J2 - Sounds fishy! | CCC | 3 | 7 | |
| 4150 Problem r | CCC '12 J3 - Icon Scaling | CCC | 3 | 8 | |
| 4082 Problem s | CCC '12 J4 - Big Bang Secrets | CCC 字符串 | 4 | 7 | |
| 4012 Problem t | CCC12J5 A Coin Game | CCC 图论 广度优先 | 0 | 0 |