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?
24963 / 27698
2
Digits
14317 / 18682
3
Match’s model
1690 / 8844
4
Two circles
5005 / 8149
5
Two factors
1268 / 3243
6
The vouchers
771 / 1220
7
Roman numerals
1701 / 2362
8
Matches
2522 / 3781
9
N-digit numbers
1924 / 2847
10
Gardener
1800 / 2484
11
Big accuracy
2822 / 3958
12
Injured Picture
466 / 785
13
Spider and Fly
922 / 1712
14
Rabbit-failure
1022 / 1397
15
Mouse and corns
2227 / 3061
16
Dragon
1017 / 1592
17
Gardener-painter
2408 / 3091
18
Paint2D
384 / 891
19
Degree of symmetry
4008 / 4771
20
How many times to repeat?
3368 / 4743
21
Corruption
69 / 921
22
"Mirror prime" numbers
1227 / 2806
23
New-year tree
522 / 1110
24
Paint2D-Crack
37 / 165
25
Paint3D
288 / 471