| A | Palindromic characteristics | 1 | 1 |
| B | Misha, Grisha and Underground | 0 | 0 |
| C | Mister B and PR Shifts | 0 | 0 |
| D | Card Game Again | 0 | 0 |
| E | Imbalanced Array | 0 | 0 |
| F | Magazine Ad | 0 | 0 |
| G | Maximal GCD | 0 | 0 |
| H | Bank Hacking | 0 | 0 |
| I | Paths in a Complete Binary Tree | 0 | 0 |
| J | Crunching Numbers Just for You | 0 | 0 |
| K | Touchy-Feely Palindromes | 0 | 0 |
| L | Felicity is Coming! | 0 | 0 |
| M | New Year and Fireworks | 0 | 0 |
| N | Dense Subsequence | 0 | 0 |
| O | Dexterina’s Lab | 0 | 0 |
| P | Directed Roads | 0 | 0 |
| Q | Recover the String | 0 | 0 |
| R | Directed Roads | 0 | 0 |
| S | Recover the String | 0 | 0 |
| T | Road to Post Office | 0 | 0 |
| U | Xor-sequences | 0 | 0 |
| V | Number of Parallelograms | 0 | 0 |
| W | Optimal Number Permutation | 0 | 0 |
| X | Enemy is weak | 0 | 0 |
| Y | Longest Regular Bracket Sequence | 0 | 0 |
| Z | Spongebob and Squares | 0 | 0 |
| AA | Subsequences | 0 | 0 |
| AB | Once Again | 0 | 0 |
| AC | Array | 0 | 0 |
| AD | Modulo Sum | 0 | 0 |
| AE | Symmetric and Transitive | 0 | 0 |
| AF | Restructuring Company | 0 | 0 |
| AG | Pie or die | 0 | 0 |
| AH | Mike和英尺 | 0 | 0 |
| AI | Bad Luck Island | 0 | 0 |
| AJ | Tavas and Malekas | 0 | 0 |
| AK | Tavas和Karafs | 1 | 1 |
| AL | Fox And Jumping | 0 | 0 |
| AM | Mr. Kitayuta, the Treasure Hunter | 0 | 0 |
| AN | Riding in a Lift | 0 | 0 |
| AO | Design Tutorial: Inverse the Problem | 1 | 1 |
| AP | Dancing Lessons | 1 | 1 |
| AQ | Bug in Code | 1 | 1 |
| AR | Cunning Gena | 1 | 1 |
| AS | Prime Number | 1 | 1 |
| AT | Cupboard and Balloons | 1 | 1 |
| AU | Shave Beaver! | 1 | 1 |
| AV | Ciel and Duel | 2 | 2 |
| AW | Ciel and Duel | 2 | 2 |
| AX | Psychos in a Line | 1 | 1 |
| AY | Interesting Game | 1 | 1 |
| AZ | General Mobilization | 1 | 1 |
| BA | Sofa Thief | 1 | 1 |
| BB | Choosing The Commander | 1 | 2 |
| BC | Coprime Subsequences | 1 | 1 |
| BD | Array Queries | 1 | 1 |
| BE | Beaver Game | 1 | 1 |
| BF | Berzerk | 1 | 1 |
| BG | Twisted Circuit | 1 | 1 |
| BH | Kids' Riddle | 1 | 1 |
| BI | Hanoi Factory | 0 | 0 |
| BJ | The Door Problem | 0 | 0 |
| BK | Dynamic Problem Scoring | 0 | 0 |
| BL | Garland | 0 | 0 |
| BM | Mahmoud and a Dictionary | 0 | 0 |
| BN | Dasha and Puzzle | 0 | 0 |
| BO | Big Maximum Sum | 0 | 0 |
| BP | Ability To Convert | 0 | 0 |
| BQ | Leaving Auction | 0 | 0 |
| BR | Closing ceremony | 0 | 0 |
| BS | Generate a String | 0 | 0 |
| BT | PLEASE | 0 | 0 |
| BU | Mike and Geometry Problem | 0 | 0 |
| BV | Gifts by the List | 0 | 0 |
| BW | Theseus and labyrinth | 0 | 0 |
| BX | Robin Hood | 0 | 0 |
| BY | Petya and Post | 0 | 0 |
| BZ | World Tour | 0 | 0 |
| CA | International Olympiad | 0 | 0 |
| CB | Polycarp and Hay | 0 | 0 |
| CC | 小阿尔提姆和时间机器 | 2 | 2 |
| CD | 糖果游戏 | 1 | 1 |
| CE | 斐波那契式 | 1 | 2 |
| CF | 生日礼物 | 1 | 1 |
| CG | 湿鲨鱼和积木 | 1 | 1 |
| CH | 捕捉缬草 | 1 | 1 |
| CI | 乘数 | 1 | 1 |
| CJ | 跑道 | 0 | 1 |
| CK | 新年和古代预言 | 1 | 1 |
| CL | Shortest Path最短路径 | 1 | 1 |
| CM | Team Arrangement小组式排班 | 1 | 1 |
| CN | Chocolate Bar巧克力棒 | 1 | 1 |
| CO | Calendar日历 | 2 | 2 |
| CP | Minimization最小化 | 1 | 1 |
| CQ | Ice Cave冰穴 | 1 | 1 |
| CR | Happy Farm 5快乐农场 5 | 1 | 1 |
| CS | Sums of Digits数字的和 | 1 | 2 |
| CT | Misha and Permutations Summation米莎和排列求和 | 1 | 1 |
| CU | Strip带 | 1 | 1 |
| CV | Crossword填字游戏 | 1 | 1 |
| CW | 红绿塔 | 1 | 1 |
| CX | CGCDSSQ | 1 | 1 |
| CY | 马尔莫特上尉 | 1 | 1 |
| CZ | Wonder Room | 0 | 0 |
| DA | 收件箱 | 1 | 1 |
| DB | 苹果人和树 | 1 | 1 |
| DC | 经理 | 1 | 1 |
| DD | DZY喜欢修改 | 1 | 1 |
| DE | 旅行 | 0 | 0 |
| DF | 特殊网格 | 1 | 1 |
| DG | Nanami的数字板 | 1 | 1 |
| DH | 前缀以及后缀 | 1 | 2 |
| DI | 警察巡逻队 | 1 | 1 |
| DJ | 2048 | 1 | 1 |
| DK | 列夫科和阵列 | 1 | 1 |
| DL | 成对的数字 | 1 | 1 |
| DM | 队列 | 1 | 1 |
| DN | 巧克力 | 1 | 1 |
| DO | 蚂蚁 | 1 | 1 |
| DP | Sereja和子序列 | 1 | 1 |
| DQ | 美人鱼和周期 | 2 | 2 |
| DR | 美人鱼和周期 | 2 | 2 |
| DS | DNA进化 | 1 | 2 |
| DT | 奥卡贝和埃尔普西孔鲁 | 1 | 1 |
| DU | 级别生成 | 1 | 1 |
| DV | 让傻瓜继续前进！(中等) | 1 | 1 |
| DW | 现场扩展 | 1 | 1 |
| DX | BST断裂 | 1 | 1 |
| DY | 警察局 | 0 | 1 |
| DZ | 在班克罗波尔的礼物 | 0 | 1 |
| EA | 奇怪的旅程 | 0 | 0 |
| EB | Beavermuncher-0xFF海狸咀嚼器 | 0 | 0 |
| EC | 福尔摩斯的孩子们 | 0 | 0 |
| ED | Significant Cups重要奖杯 | 0 | 0 |
| EE | Amusement Park游乐园 | 0 | 0 |
| EF | Bear and Tree Jumps熊和树跳跃 | 0 | 0 |
| EG | Mice老鼠 | 0 | 0 |
| EH | Game of Stones石头游戏 | 0 | 0 |
| EI | Chessboard Billiard棋盘式台球 | 0 | 0 |
| EJ | Mishka and Interesting sum米什卡和有趣的总和 | 0 | 0 |