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Hot problems
CCC '12 S3 - Absolutely Acidic
DMOPC '20 Contest 4 P1 - Missing Numbers
CCC '21 J3 - Secret Instructions
CCC '24 S2 - Heavy-Light Composition
COCI '06 Regional #3 Firefly
ACSL '09 Practice P4 - Rank
ECOO '19 R1 P1 - Free Shirts
Problem
Category
Points
AC % ▾
Users
COCI '16 Contest 7 #1 Baza
COCI
5p
75.5%
34
COCI '15 Contest 4 #3 Deathstar
COCI
7p
74.3%
286
COCI '16 Contest 4 #2 Kartomat
COCI
5p
74.2%
138
COCI '21 Contest 2 #1 Kaučuk
COCI
5p
73.9%
91
COCI '13 Contest 5 #2 Obilazak
COCI
7p
72.3%
127
COCI '09 Contest 4 #1 Autori
COCI
3
69.9%
413
COCI '06 Contest 2 #1 R2
COCI
3
69.9%
1115
COCI '12 Contest 2 #1 Mortadela
COCI
3p
69.6%
62
COCI '15 Contest 7 #4 Otpor
COCI
12
69.2%
30
COCI '22 Contest 1 #1 Desni Klik
COCI
5p
68.9%
141
COCI '10 Contest 6 #2 Uspon
COCI
5p
68.8%
49
COCI '15 Contest 3 #1 Pot
COCI
5
68.1%
208
COCI '09 Contest 2 #1 Faktor
COCI
3p
67.9%
324
COCI '12 Contest 6 #1 Baka
COCI
3p
67.7%
88
COCI '16 Contest 5 #1 Tuna
COCI
3p
67.7%
62
COCI '20 Contest 6 #1 Bold
COCI
5p
67.7%
163
COCI '23 Contest 4 #1 Bingo
COCI
5p
67.0%
65
COCI '09 Contest 6 #1 Kajak
COCI
5p
66.7%
82
COCI '10 Contest 3 #6 Mono
COCI
12p
66.7%
6
COCI '09 Contest 1 #2 Domino
COCI
5
66.3%
379
COCI '11 Contest 6 #2 Prozori
COCI
5
65.8%
24
COCI '18 Contest 6 #1 Lun
COCI
5p
65.5%
19
COCI '15 Contest 6 #1 Bela
COCI
5
65.3%
69
COCI '06 Contest 2 #4 Sjecišta
COCI
7
64.7%
397
COCI '07 Contest 2 #1 Bijele
COCI
3
64.3%
619
COCI '11 Contest 2 #1 Najboljih 5
COCI
5p
63.4%
39
COCI '17 Contest 5 #1 Olivander
COCI
5p
62.9%
61
COCI '20 Contest 4 #1 Pizza
COCI
5p
62.8%
151
COCI '17 Contest 3 #1 Aron
COCI
3
62.6%
103
COCI '09 Contest 7 #1 Spavanac
COCI
5
62.3%
201
COCI '14 Contest 3 #1 Strojopis
COCI
5p
61.9%
165
COCI '15 Contest 1 #1 Karte
COCI
5
61.6%
107
COCI '06 Contest 4 #2 Skener
COCI
3
61.4%
223
COCI '13 Contest 3 #2 Okvir
COCI
5p
61.4%
24
COCI '17 Contest 2 #1 Košnja
COCI
3
61.3%
115
COCI '18 Contest 6 #2 Konj
COCI
7p
61.1%
10
COCI '12 Contest 6 #2 Sume
COCI
7
60.3%
32
COCI '06 Contest 1 #1 Modulo
COCI
3
60.2%
1205
COCI '06 Contest 3 #1 Patuljci
COCI
5
60.0%
592
COCI '10 Contest 3 #2 Zbroj
COCI
3p
60.0%
75
COI '16 #2 Raspad
COCI
30p
60.0%
3
COCI '23 Contest 3 #1 Eurokod
COCI
5p
60.0%
39
COCI '10 Contest 7 #3 Gitara
COCI
7p
59.3%
145
COCI '07 Contest 2 #3 Prva
COCI
7
58.8%
291
COCI '17 Contest 7 #1 Prosjek
COCI
5p
58.8%
43
COCI '16 Contest 3 #4 Kvalitetni
COCI
12p
58.8%
8
COCI '06 Contest 4 #1 Sibice
COCI
3
58.8%
506
COCI '16 Contest 1 #1 Tarifa
COCI
3
58.6%
2398
COCI '06 Contest 6 #1 Prase
COCI
5p
58.6%
327
COCI '06 Contest 6 #2 Magija
COCI
5p
58.5%
135
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