Index By Type

Pro.ID	Problem Title	Difficulty	Notes
1120	The Bulk	Difficulty: 5	Notes: We just don't know the type of these problems
1122	Direct Visibility	Difficulty: 5	Notes: If you solved it , please tell us.
1340	Cog-Wheels	Difficulty: 5	Notes:
1344	Nonst	Difficulty: 5	Notes:
1349	Fold-up Patterns	Difficulty: 5	Notes:
1351	Leaky Cryptography	Difficulty: 5	Notes:
1354	Choose Your Own Adventure	Difficulty: 5	Notes:
1359	As the Crow Flies	Difficulty: 5	Notes:
1362	The Bermuda Triangle	Difficulty: 5	Notes:
1363	Deformed Wheel	Difficulty: 5	Notes:
1364	Illusive Chase	Difficulty: 5	Notes:
1365	Puzzle Out	Difficulty: 5	Notes:
1366	The Willy Memorial Program	Difficulty: 5	Notes:
1367	Parallel Expectations	Difficulty: 5	Notes:
1368	University Entrance Examination	Difficulty: 5	Notes:
1369	Erdos Numbers	Difficulty: 5	Notes:
1377	A Well-Formed Problem	Difficulty: 5	Notes:
1378	Formatting Text	Difficulty: 5	Notes:
1383	Company	Difficulty: 5	Notes:
1386	Elevator Simulation	Difficulty: 5	Notes:
1389	Markov Trains	Difficulty: 5	Notes:

Oh My God（who can solve these problems?）