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?
33749 / 37775
2
Digits
18926 / 24785
3
Match’s model
2338 / 11604
4
Two circles
6213 / 10179
5
Two factors
1635 / 4283
6
The vouchers
978 / 1549
7
Roman numerals
2132 / 2993
8
Matches
3262 / 4911
9
N-digit numbers
2383 / 3590
10
Gardener
2261 / 3104
11
Big accuracy
3230 / 4875
12
Injured Picture
595 / 957
13
Spider and Fly
1162 / 2151
14
Rabbit-failure
1277 / 1711
15
Mouse and corns
2904 / 3900
16
Dragon
1263 / 2029
17
Gardener-painter
2866 / 3678
18
Paint2D
548 / 1175
19
Degree of symmetry
5294 / 6319
20
How many times to repeat?
4097 / 5964
21
Corruption
93 / 1252
22
"Mirror prime" numbers
1875 / 3658
23
New-year tree
639 / 1383
24
Paint2D-Crack
38 / 206
25
Paint3D
421 / 638