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?
30682 / 34238
2
Digits
17418 / 22768
3
Match’s model
2132 / 10807
4
Two circles
5818 / 9525
5
Two factors
1533 / 3976
6
The vouchers
925 / 1462
7
Roman numerals
2008 / 2813
8
Matches
2988 / 4503
9
N-digit numbers
2264 / 3376
10
Gardener
2088 / 2882
11
Big accuracy
3111 / 4630
12
Injured Picture
554 / 902
13
Spider and Fly
1088 / 2017
14
Rabbit-failure
1207 / 1632
15
Mouse and corns
2729 / 3685
16
Dragon
1204 / 1906
17
Gardener-painter
2768 / 3546
18
Paint2D
514 / 1114
19
Degree of symmetry
4967 / 5910
20
How many times to repeat?
3866 / 5575
21
Corruption
93 / 1202
22
"Mirror prime" numbers
1732 / 3456
23
New-year tree
604 / 1320
24
Paint2D-Crack
38 / 193
25
Paint3D
394 / 599