Index By Type

Pro.ID	Problem Title	Difficulty	Notes
1142	A Walk Through the Forest	Difficulty: 3	Notes:
1217	Arbitrage	Difficulty: 1	Notes:
1224	Free DIY Tour	Difficulty: 1	Notes:
1245	Saving James Bond	Difficulty: 3	Notes:
1317	XYZZY	Difficulty: 2	Notes:
1384	Intervals	Difficulty: 2	Notes: difference constraints
1385	Minimum Transport Cost	Difficulty: 1	Notes:
1529	Cashier Employment	Difficulty: 4	Notes: difference constraints
1531	King	Difficulty: 3	Notes: difference constraints
1534	Schedule Problem	Difficulty: 2	Notes: difference constraints
1535	Invitation Cards	Difficulty: 3	Notes:
1546	Idiomatic Phrases Game	Difficulty: 3	Notes:
1548	A strange lift	Difficulty: 2	Notes:
1595	find the longest of the shortest	Difficulty: 2	Notes:
1596	find the safest road	Difficulty: 2	Notes:
1598	find the most comfortable road	Difficulty: 3	Notes:
1599	find the mincost route	Difficulty: 2	Notes:
1688	Sightseeing	Difficulty: 3	Notes:
1690	Bus System	Difficulty: 2	Notes:
1839	Delay Constrained Maximum Capacity Path	Difficulty: 2	Notes:
1869	六度分离	Difficulty: 1	Notes:
1874	畅通工程续	Difficulty: 1	Notes:
2066	一个人的旅行	Difficulty: 1	Notes:
2112	HDU Today	Difficulty: 1	Notes:
2145	zz's Mysterious Present	Difficulty: 3	Notes:
2224	The shortest path	Difficulty: 2	Notes:
2363	Cycling	Difficulty: 3	Notes:
2377	Bus Pass	Difficulty: 2	Notes:
2433	Travel	Difficulty: 4	Notes:
2482	Transit search	Difficulty: 3	Notes:
2544	最短路	Difficulty: 1	Notes:
2680	Choose the best route	Difficulty: 1	Notes:
2722	Here We Go(relians) Again	Difficulty: 1	Notes:
2807	The Shortest Path	Difficulty: 2	Notes:
2833	WuKong	Difficulty: 2	Notes:
2923	Einbahnstrasse	Difficulty: 1	Notes:
2962	Trucking	Difficulty: 3	Notes:
3035	War	Difficulty: 3	Notes:
3191	How Many Paths Are There	Difficulty: 3	Notes:
3339	In Action	Difficulty: 1	Notes:
3440	House Man	Difficulty: 3	Notes: difference constraints
3592	World Exhibition	Difficulty: 3	Notes: difference constraints
3631	Shortest Path	Difficulty: 2	Notes:
3666	THE MATRIX PROBLEM	Difficulty: 3	Notes: difference constraints
3768	Shopping	Difficulty: 3	Notes:
3790	最短路径问题	Difficulty: 1	Notes:
3832	Earth Hour	Difficulty: 2	Notes:
3860	Circuit Board	Difficulty: 3	Notes:
3870	Catch the Theves	Difficulty: 3	Notes:
3873	Invade the Mars	Difficulty: 3	Notes:

Graph Theory - Shortest Path