| 2000 | 删除链表中偶数结点 | 29.06%(118/406) |
| 2001 | Jokes | 9.16%(68/742) |
| 2002 | Feel Good | 29.94%(47/157) |
| 2003 | Tree Recovery | 57.96%(91/157) |
| 2004 | Falling Leaves | 80.00%(4/5) |
| 2005 | Binary Tree | 43.60%(75/172) |
| 2006 | S-Trees | 65.38%(51/78) |
| 2007 | Big Christmas Tree | 75.00%(3/4) |
| 2008 | How many trees? | 45.71%(16/35) |
| 2009 | Safe Or Unsafe | 42.58%(66/155) |
| 2010 | QAQ又遇到数学问题了 | 33.03%(36/109) |
| 2011 | 和和和和和 | 38.33%(23/60) |
| 2012 | Psychos in a Line | 26.79%(15/56) |
| 2013 | Anya and Smartphone | 0.00%(0/1) |
| 2014 | ACMer | 100.00%(2/2) |
| 2015 | Mike and Feet | 0.00%(0/1) |
| 2016 | Replacement | 30.56%(11/36) |
| 2017 | Print Check | 27.03%(10/37) |
| 2018 | Watchmen | 30.77%(4/13) |
| 2019 | Binary Tree Traversals | 46.09%(53/115) |
| 2020 | Joysticks | 48.78%(20/41) |
| 2021 | The Suspects | 47.09%(81/172) |
| 2022 | 食物链 | 27.64%(76/275) |
| 2023 | T^T学长考四级 | 36.71%(29/79) |
| 2024 | Boredom | 45.00%(18/40) |
| 2025 | Learning Languages | 32.00%(8/25) |
| 2026 | DZY Loves Chemistry | 22.22%(6/27) |
| 2027 | 完全二叉树 | 55.56%(5/9) |
| 2028 | Little Girl and Maximum Sum | 48.65%(18/37) |
| 2029 | Asteroids! | 0.00%(0/0) |
| 2030 | 斐波那契数列再现 | 25.34%(93/367) |
| 2031 | T^T的概率论 | 54.90%(56/102) |
| 2032 | Ubiquitous Religions | 25.49%(13/51) |
| 2033 | Friend Chains | 50.00%(4/8) |
| 2034 | Gym Class | 100.00%(6/6) |
| 2035 | Stripies | 30.14%(22/73) |
| 2036 | Ugly Numbers | 29.69%(95/320) |
| 2037 | Fence Repair | 44.80%(56/125) |
| 2038 | Statistics of Recompressing Videos | 29.63%(8/27) |
| 2039 | T^T的ACM | 38.33%(23/60) |
| 2040 | Home Numbers | 70.37%(19/27) |
| 2041 | 位运算 | 58.02%(47/81) |
| 2042 | Bear and Reverse Radewoosh | 80.00%(8/10) |
| 2043 | Round House | 51.28%(20/39) |
| 2044 | Amity Assessment | 39.29%(11/28) |
| 2045 | Save Luke | 83.33%(15/18) |
| 2046 | Comparing Two Long Integers | 41.30%(19/46) |
| 2047 | Mobile phones | 36.36%(4/11) |
| 2048 | Interesting Array | 23.81%(5/21) |
| 2049 | Sequence | 30.00%(12/40) |
| 2050 | Babelfish | 22.80%(83/364) |
| 2051 | Super Mobile Charger | 50.00%(20/40) |
| 2052 | Common Tangents | 33.02%(35/106) |
| 2053 | Knapsack problem | 27.12%(16/59) |
| 2054 | Simple Polynomial Problem | 0.00%(0/4) |
| 2055 | The Longest Straight | 42.86%(12/28) |
| 2056 | Taxi | 0.00%(0/1) |
| 2057 | Simple String Problem | 66.67%(2/3) |
| 2058 | StarCraft | 33.33%(3/9) |
| 2059 | Defender of Argus | 0.00%(0/1) |
| 2060 | RunningMan | 28.95%(22/76) |
| 2061 | Solve equation | 37.50%(18/48) |
| 2062 | Bin & Jing in wonderland | 0.00%(0/1) |
| 2063 | Floor problem | 72.22%(26/36) |
| 2064 | Digits Count | 33.33%(1/3) |
| 2065 | How many tuples | 0.00%(0/1) |
| 2066 | Hua Rong Dao | 0.00%(0/1) |
| 2067 | Mod problem | 0.00%(0/1) |
| 2068 | Mountain Number | 0.00%(0/1) |
| 2069 | Star | 32.26%(10/31) |
| 2070 | Min Number | 0.00%(0/1) |
| 2071 | Tickets | 33.33%(3/9) |
| 2072 | Wizards' Duel | 60.00%(33/55) |
| 2073 | 起重机 | 19.35%(6/31) |
| 2074 | A Simple Problem with Integers | 18.53%(78/421) |
| 2075 | K-th Number | 56.14%(32/57) |
| 2076 | 逃生 | 45.45%(10/22) |
| 2077 | Matrix | 30.61%(30/98) |
| 2078 | Ebony and Ivory | 42.67%(32/75) |
| 2079 | Pasha and Stick | 37.21%(16/43) |
| 2080 | Fibonacci | 42.86%(39/91) |
| 2081 | Quasi Binary | 35.71%(15/42) |
| 2082 | Game | 71.43%(20/28) |
| 2083 | Code | 100.00%(1/1) |
| 2084 | Wow! Such String! | 100.00%(1/1) |
| 2085 | 欧拉回路 | 46.67%(14/30) |
| 2086 | Lake Counting | 34.86%(152/436) |
| 2087 | T^T又有数学问题了 | 20.00%(1/5) |
| 2088 | T^T找数字 | 25.63%(142/554) |
| 2089 | T^T与小彩的爱情故事 | 26.67%(16/60) |
| 2090 | Complicated GCD | 69.70%(23/33) |
| 2091 | The Clocks | 54.55%(6/11) |
| 2092 | Oil Deposits | 54.12%(46/85) |
| 2093 | Addition Chains | 47.37%(9/19) |
| 2094 | Knight Moves | 60.00%(30/50) |
| 2095 | Catch That Cow | 52.63%(10/19) |
| 2096 | Scout YYF I | 33.33%(1/3) |
| 2097 | Time travel | 50.00%(2/4) |
| 2098 | 不要62 | 48.78%(20/41) |
| 2099 | B-number | 60.00%(3/5) |