• d242: 00481 - What Goes Up
• 2. 最長遞增子序列
• a676: 00111 - History Grading
• a133: 10066 - The Twin Towers
• c001: 10405 - Longest Common Subsequence
• d674: 10192 - Vacation
• d231: 97北縣賽-2-基因序列密碼問題
• c435: MAX ! MAX ! MAX !
• a540: 10684 - The jackpot
• d784: 一、連續元素的和
• 776-C. Molly's Chemicals
• 1003-F. Abbreviation
• 779-D. String Game
• 743-E. Vladik and cards
• 740-C. Alyona and mex