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backtracking problems
Problem Name Online Judge Year Contest Difficulty Level
1 Tree Summing Categories UVA 1
2 Expert Enough? Categories UVA 1
3 Sum It Up Categories UVA 1
4 Back to the 8-Queens Categories UVA 1
5 Dreamoon and WiFi Categories Codeforces Codeforces Round #272 (Div. 2) 1
6 Making Jumps Categories SPOJ 1
7 ABC Path Categories SPOJ 1
8 Prime Ring Problem Categories UVA 1
9 Lotto Categories UVA 1
10 Division Categories UVA 1
11 Passwords Categories UVA 1
12 The Hamming Distance Problem Categories UVA 1
13 The House Of Santa Claus Categories UVA 1
14 The Sultan's Successors Categories UVA 1
15 CD Categories UVA 1
16 Don't Get Rooked Categories UVA 1
17 23 out of 5 Categories UVA 1
18 8 Queens Chess Problem Categories UVA 1
19 ALL IZZ WELL Categories SPOJ 1
20 At most twice Categories Live Archive 2015 Latin America 1
21 Hanoi Tower Troubles Again! Categories UVA 1
22 Winterim Backpacking Trip Categories UVA 2
23 Garden of Eden Categories UVA 2
24 Knights in FEN Categories UVA 2
25 Another n-Queen Problem Categories UVA 2
26 Monkeys in a Regular Forest Categories UVA 2
27 Vonny and her dominos Categories SPOJ 2
28 A-Sequence Categories UVA 2
29 Sum It Up Categories Live Archive 1997 North America - Mid-Central USA 3
30 Dividing coins Categories Live Archive 1996 Europe - Northwestern 3
31 Playing Boggle Categories UVA 3
32 Digger Octaves Categories SPOJ 3
33 The Boggle Game Categories UVA 3
34 Run, Run, Runaround Numbers Categories ZOJ 3
35 Word Index Categories Live Archive 1995 North America - East Central NA 4
36 The Sultan's Successors Categories Live Archive 1991 South Pacific 4
37 Prim Categories UVA 4
38 Hexagonal Puzzle Categories UVA 6
39 Graph Coloring Categories Codeforces CROC 2016 - Final Round [Private, For Onsite Finalists Only] 6
40 The Boggle Game Categories Live Archive 1997 North America - Pacific Northwest 7
41 This Means War! Categories UVA 8
42 Knight Moves Categories Live Archive 2002 North America - Southeast USA 10