e-olymp
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Problems

Simple
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...
2
Digits
21454 / 27972
4
Two circles
6966 / 11308
6
The vouchers
1110 / 1750
7
Roman numerals
2397 / 3390
8
Matches
3643 / 5473
9
N-digit numbers
2649 / 4012
10
Gardener
2531 / 3471
11
Big accuracy
3429 / 5336
12
Injured Picture
703 / 1105
14
Rabbit-failure
1423 / 1900
15
Mouse and corns
3286 / 4432
16
Dragon
1448 / 2284
17
Gardener-painter
3124 / 4047
20
How many times to repeat?
4464 / 6542
25
Paint3D
502 / 757
26
New-year presents
852 / 1195
29
The level of palindrome
1737 / 2466
33
The favourite numbers of Santa Claus
1537 / 2345
34
The word of sponsor
1057 / 1386
36
Gorynych the Dragon
1091 / 1552
37
Mail of the sponsor
727 / 948
39
Sponsor’s money
380 / 532
41
Command of the Mayor
407 / 609
43
Competitors’ quantity of olimpia
2483 / 3393
44
The number of ones
2014 / 3027