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?
30428 / 33944
2
Digits
17226 / 22532
3
Match’s model
2115 / 10670
4
Two circles
5776 / 9459
5
Two factors
1515 / 3913
6
The vouchers
922 / 1455
7
Roman numerals
1989 / 2788
8
Matches
2964 / 4460
9
N-digit numbers
2250 / 3356
10
Gardener
2079 / 2870
11
Big accuracy
3099 / 4591
12
Injured Picture
552 / 899
13
Spider and Fly
1083 / 2004
14
Rabbit-failure
1202 / 1624
15
Mouse and corns
2708 / 3658
16
Dragon
1200 / 1898
17
Gardener-painter
2753 / 3530
18
Paint2D
511 / 1099
19
Degree of symmetry
4926 / 5861
20
How many times to repeat?
3828 / 5522
21
Corruption
93 / 1186
22
"Mirror prime" numbers
1717 / 3434
23
New-year tree
593 / 1298
24
Paint2D-Crack
38 / 192
25
Paint3D
390 / 594