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Problems

Difficult
All Problems Very simple Simple Average Difficult Very difficult
Classification
All Problems ---traveling-salesman-problem- -three- 2-sat algorithms-on-strings articulation-point backtracking beginners bellman-ford-algorithm binary-search bitwise-operators breadth-first-search bridges calculation-system catalan-numbers clique combinatorics connected-components depth-first-search dijkstra-algorithm diophantine-equations Others...
5
Two factors
2286 / 6067
18
Paint2D
825 / 1698
23
New-year tree
936 / 2018
28
Product
628 / 1532
30
Certification
115 / 266
32
Queen and pawn
164 / 469
35
Triangles from Matches
664 / 1731
38
Firs conversation
94 / 224
42
Green spot
102 / 268
53
Anfisa’s Holiday
94 / 195
54
Murzyk
485 / 1289
59
The Cells are Painted out
66 / 143
74
Spider and Fly - 2
137 / 453
78
Islands
94 / 199
79
The Genome of Newton
52 / 151
81
Points
45 / 122
82
Catacombs
24 / 68
90
Gold, Food and Power
29 / 62
101
Permutations with given distance
12 / 28
103
Process simulation
14 / 31
132
Broken line (RU)
86 / 261
135
LCM
1419 / 3786
147
Quantity of days (RU)
403 / 844
154
Pieces - 2
53 / 138
166
Streetraicing (RU)
8 / 24