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Problems

Average
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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...
4
Two circles
9954 / 16110
6
The vouchers
1587 / 2607
7
Roman numerals
3593 / 5226
8
Matches
5199 / 7965
9
N-digit numbers
3830 / 5777
11
Big accuracy
4349 / 7422
12
Injured Picture
972 / 1489
13
Spider and Fly
1685 / 3211
16
Dragon
1931 / 3146
18
Paint2D
970 / 1929
20
How many times to repeat?
6547 / 9785
22
"Mirror prime" numbers
3747 / 6087
25
Paint3D
745 / 1124
33
The favourite numbers of Santa Claus
1974 / 2995
36
Gorynych the Dragon
1424 / 2080
39
Sponsor’s money
460 / 678
40
Pipeline (RU)
259 / 480
41
Command of the Mayor
414 / 678
45
The Fuel
159 / 236
48
The Red and Blue Squares
450 / 660
49
The Smart Cat
797 / 1205
50
The cut number
420 / 630
55
The presents to the 8th of March
690 / 1155
62
The Factorial
2403 / 4750
68
Metro
156 / 228