- Find a way - HDU 2612 - Virtual Judge
- Find the Multiples - UVALive 5072 - Virtual Judge
- Baskets of Gold Coins - UVALive 3576 - Virtual Judge
- Othello - UVALive 5159 - Virtual Judge
- Rails - UVALive 5531 - Virtual Judge
- Largest Rectangle in a Histogram - POJ 2559 - Virtual Judge
- City Game - UVALive 3029 - Virtual Judge
- Squares - UVALive 5140 - Virtual Judge
- Solitaire - UVALive 2667 - Virtual Judge
- Octal Fractions - UVALive 2245 - Virtual Judge
- Starship Hakodate-maru - UVALive 2400 - Virtual Judge
- Symmetric Order - UVALive 3055 - Virtual Judge
- Error Correction - UVA 541 - Virtual Judge
- Sudoku Killer - HDU 1426 - Virtual Judge
- Sudoku Extension - UVALive 4763 - Virtual Judge
- Sudoku - POJ 3076 - Virtual Judge
- Sudoku Checker - UVALive 4796 - Virtual Judge
- Bundles of Joy - UVALive 7392 - Virtual Judge
- Pagodas - UVALive 7241 - Virtual Judge
- Flip Game - UVALive 2216 - Virtual Judge
- Easier Done than Said? - UVALive 2062 - Virtual Judge
- Biker's Trip Odometer - UVALive 2865 - Virtual Judge
- Keep on Truckin' - UVALive 2857 - Virtual Judge
- Card Game - UVALive 5027 - Virtual Judge
- Card Game - UVALive 6971 - Virtual Judge
- 胜利大逃亡(续) - HDU 1429 - Virtual Judge
- Knights of Ni - POJ 3170 - Virtual Judge
- u Calculate e - UVALive 2083 - Virtual Judge
- K.Bro Sorting - UVALive 7068 - Virtual Judge
- Asteroids! - POJ 2225 - Virtual Judge
- Prime Path - UVALive 3639 - Virtual Judge
- 漫步校园 - HDU 1428 - Virtual Judge
- 魔板 - HDU 1430 - Virtual Judge
- Walk Out - HDU 5335 - Virtual Judge
- XYZ and Drops - HDU 5336 - Virtual Judge
- Obstacle Course - UVALive 4435 - Virtual Judge
- Fence Obstacle Course - POJ 2374 - Virtual Judge
- Aquarium - UVALive 7303 - Virtual Judge
- Sheldon Numbers - UVALive 7279 - Virtual Judge
- Reversi - HDU 3368 - Virtual Judge
- Prison Break - UVALive 4834 - Virtual Judge
- Going in Cycle!! - UVA 11090 - Virtual Judge
- Yukari's Birthday - UVALive 6076 - Virtual Judge
- Aggregated Counting - HDU 5439 - Virtual Judge
- Alisha’s Party - HDU 5437 - Virtual Judge
- Squares - UVALive 3047 - Virtual Judge
- Self Numbers - UVALive 5326 - Virtual Judge
- Flooded! - UVALive 5215 - Virtual Judge
- Spreadsheet Tracking - UVALive 5198 - Virtual Judge（已解）
- Eight II - HDU 3567 - Virtual Judge
- LETTERS - POJ 1154 - Virtual Judge
- Jugs - UVALive 5502 - Virtual Judge
- Pots - POJ 3414 - Virtual Judge
- Coins - POJ 3210 - Virtual Judge
- Palindrome - POJ 3974 - Virtual Judge
- Shopaholic - POJ 3637 - Virtual Judge
- Election Time - POJ 3664 - Virtual Judge
- Corn Fields - POJ 3254 - Virtual Judge
- Speed Reading - POJ 3619 - Virtual Judge
- Humidex - UVA 11241 - Virtual Judge
- Sum of Consecutive Prime Numbers - UVALive 3399 - Virtual Judge
- Moving Tables - UVALive 2326 - Virtual Judge
- The Suspects - UVALive 2817 - Virtual Judge
- Light, more light - UVA 10110 - Virtual Judge
- 小希的迷宫 - HDU 1272 - Virtual Judge
- Hiking - HDU 5360 - Virtual Judge
- Three Kingdoms - HDU 3442 - Virtual Judge
- Escape - HDU 3533 - Virtual Judge
- A Puzzle Game - HDU 3582 - Virtual Judge
- Linear Cellular Automata - UVA 457 - Virtual Judge
- The Collatz Sequence - UVALive 5466 - Virtual Judge
- Ecological Premium - UVA 10300 - Virtual Judge
- Mud Puddles - POJ 3626 - Virtual Judge
- Round and Round We Go - POJ 1047 - Virtual Judge
- The Collatz Sequence - UVA 694 - Virtual Judge
- Excuses, Excuses! - UVALive 5493 - Virtual Judge
- A simple greedy problem. - HDU 4976 - Virtual Judge
- Interesting Fibonacci - HDU 2814 - Virtual Judge
- How Long Do You Have to Draw - HDU 4723 - Virtual Judge
- Sightseeing - POJ 3463 - Virtual Judge
- Sightseeing - UVALive 4039 - Virtual Judge
- Coin Toss - UVALive 3824 - Virtual Judge
- How many 0's? - POJ 3286 - Virtual Judge（已解）
- Mex - HDU 4747 - Virtual Judge
- Painting A Board - POJ 1691 - Virtual Judge
- Changing Digits - POJ 3373 - Virtual Judge
- Countdown - UVALive 3373 - Virtual Judge
- Terrorist’s destroy - HDU 4679 - Virtual Judge
- Building Fence - HDU 4667 - Virtual Judge
- Cut Pieces - HDU 4655 - Virtual Judge
- Park Visit - HDU 4607 - Virtual Judge（已解）
- Deque - HDU 4604 - Virtual Judge