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Random
Hot problems
CCC '16 S4 - Combining Riceballs
Cheerio Contest 1 S2 - School Expansion
Appleby Contest '19 P5 - Matrix Operation
WC '96 P6 - Bases Multiplication
CCO '07 P2 - Snowflakes
CCC '24 S2 - Heavy-Light Composition
DMOPC '23 Contest 1 P1 - Peak Grid
Problem
Category
Points
AC %
▴
Users
Continuous Time Finance
Uncategorized
0p
69.1%
28
COCI '23 Contest 3 #1 Eurokod
COCI
5p
60.0%
39
COCI '23 Contest 3 #2 Vrsar
COCI
10p
13.6%
23
COCI '23 Contest 3 #3 Milano C.le
COCI
10p
35.2%
29
COCI '23 Contest 3 #4 Restorani
COCI
20p
9.6%
5
COCI '23 Contest 3 #5 Slučajna Cesta
COCI
15p
36.5%
17
Carving Tiny Fractions
Uncategorized
25p
5.3%
4
COCI '23 Contest 4 #1 Bingo
COCI
5p
67.0%
65
COCI '23 Contest 4 #2 Knjige
COCI
7p
22.3%
40
COCI '23 Contest 4 #3 Lepeze
COCI
25p
9.1%
5
COCI '23 Contest 4 #4 Putovanje
COCI
20p
10.7%
19
COCI '23 Contest 4 #5 Roboti
COCI
17p
7.5%
7
Guessing Game
Uncategorized
5p
37.8%
9
COCI '23 Contest 5 #1 Zlagalica
COCI
5p
53.2%
28
COCI '23 Contest 5 #2 Bitovi
COCI
10p
10.7%
12
COCI '23 Contest 5 #3 Piratski Kod
COCI
15p
38.9%
12
COCI '23 Contest 5 #4 Rolete
COCI
15p
27.3%
18
COCI '23 Contest 5 #5 Trokut
COCI
17p
28.1%
8
Capture The Flag
Uncategorized
5
29.7%
71
Permutation Sorting
Olympiads School
20p
16.2%
13
Tree Journey
Olympiads School
12p
50.0%
27
Infinity Card Decks
Olympiads School
15p
16.9%
12
City Travel
Olympiads School
15p
16.4%
22
ECOO '13 R1 P1 - Take a Number
ECOO
5p
27.1%
1194
ECOO '13 R1 P2 - The Luhn Algorithm
ECOO
5p
47.7%
366
ECOO '13 R1 P3 - Hexudoku
ECOO
7p
52.7%
88
ECOO '13 R1 P4 - Coupon Day
ECOO
10p
34.7%
24
CCC '11 S2 - Multiple Choice
CCC
3
55.1%
6279
IOI '14 P1 - Rail
IOI
30p
10.7%
47
IOI '14 P3 - Game
IOI
20p
27.8%
217
DMOPC '14 Contest 1 P5 - Surprise Teleport
DMOPC
7p
20.5%
533
DMOPC '14 Contest 1 P6 - Biology Homework
DMOPC
17p
18.7%
33
DMOPC '14 Contest 1 P1 - Median Mark
DMOPC
5p
20.2%
657
DMOPC '14 Contest 1 P2 - Tiles
DMOPC
3p
54.2%
1272
DMOPC '14 Contest 1 P3 - New Students
DMOPC
3p
37.6%
874
DMOPC '14 Contest 1 P4 - Perfect Timing
DMOPC
5p
25.2%
158
COCI '14 Contest 1 #4 Mafija
COCI
15p
19.5%
113
CCC '11 S4 - Blood Distribution
CCC
15p
7.7%
157
Halloween '14 P2 - Cat Girls
Seasonal
12p
27.8%
205
COCI '14 Contest 1 #6 Kamp
COCI
20p
34.8%
141
COCI '14 Contest 1 #5 Zabava
COCI
15p
31.7%
132
COCI '14 Contest 1 #1 Prosjek
COCI
5p
58.0%
329
COCI '14 Contest 1 #2 Klopka
COCI
5p
45.1%
339
COCI '14 Contest 1 #3 Piramida
COCI
10p
11.9%
85
DMOPC '14 Contest 2 P4 - Deforestation
DMOPC
5p
32.5%
1794
DMOPC '14 Contest 2 P6 - Selective Cutting
DMOPC
12p
29.2%
379
DMOPC '14 Contest 2 P5 - Sawmill Scheme
DMOPC
10p
20.8%
447
DMOPC '14 Contest 2 P1 - Logging Log
DMOPC
3p
37.6%
780
DMOPC '14 Contest 2 P3 - Sawmill
DMOPC
7p
36.8%
602
COCI '14 Contest 2 #5 Šuma
COCI
20p
19.0%
64
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