e-olymp

Problems

Complexity
All Problems Very simple Simple Average Difficult Very difficult
Classification
All Problems Combinatorics Comforting task Dynamic programming Game theory Graph theory Long arithmetic Modeling Number theory Probability Test problem Others...
1
Simple problem?
32579 / 36443
2
Digits
18322 / 23957
3
Match’s model
2229 / 11229
4
Two circles
6052 / 9912
5
Two factors
1563 / 4096
6
The vouchers
937 / 1488
7
Roman numerals
2054 / 2889
8
Matches
3124 / 4719
9
N-digit numbers
2305 / 3460
10
Gardener
2179 / 3004
11
Big accuracy
3161 / 4733
12
Injured Picture
562 / 919
13
Spider and Fly
1113 / 2064
14
Rabbit-failure
1236 / 1665
15
Mouse and corns
2818 / 3787
16
Dragon
1234 / 1987
17
Gardener-painter
2822 / 3618
18
Paint2D
525 / 1140
19
Degree of symmetry
5136 / 6116
20
How many times to repeat?
3996 / 5761
21
Corruption
93 / 1234
22
"Mirror prime" numbers
1789 / 3542
23
New-year tree
611 / 1340
24
Paint2D-Crack
38 / 197
25
Paint3D
405 / 617