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Problems

Simple
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...
1
Simple problem
59828 / 66858
2
Digits
34942 / 43814
10
Gardener
3985 / 5631
14
Rabbit-failure
2096 / 2896
15
Mouse and corns
4868 / 6244
17
Gardener-painter
4818 / 6152
19
Degree of symmetry
8312 / 9825
26
New-year presents
1702 / 2288
27
Cycle shifts
5102 / 6133
29
The level of palindrome
2727 / 3702
31
Superstitious Santa Claus
1280 / 1527
34
The word of sponsor
1685 / 2104
37
Mail of the sponsor
1235 / 1496
43
Competitors’ quantity of olimpia
2992 / 4125
44
The number of ones
3380 / 4593
46
The Segments
1401 / 1872
47
The Parquet of the Triangles
709 / 914
51
The Cost of the K-dominoes
902 / 1042
52
The Cheese for Anfisa
1010 / 1235
57
The Butterfly – Medical Attendan
3904 / 4364
58
The Billiards
1221 / 1674
60
Area of a Polygon
3111 / 3919
61
Cleaning up the Snow
648 / 767
63
Anfisa and the flowers
7621 / 8932
64
The Timetable from "Diez-Product"
222 / 295