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Hot problems
Knapsack 4
IOI '04 P4 - Phidias
WC '17 Contest 3 J3 - Uncrackable
DMOPC '19 Contest 5 P1 - Conspicuous Cryptic Checklist
IOI '94 P1 - The Triangle
DMOPC '18 Contest 1 P2 - Sorting
IOI '07 P4 - Miners
Problem
Category
Points ▾
AC %
Users
Sandwich
Uncategorized
5
33.7%
202
CCC '05 J3 - Returning Home
CCC
5
37.3%
2353
CCC '11 J2 - Who Has Seen The Wind
CCC
5
25.6%
1852
CCC '11 J3 - Sumac Sequences
CCC
5
43.4%
2862
CCC '06 S1 - Maternity
CCC
5
37.5%
1140
CCC '06 S2 - Attack of the CipherTexts
CCC
5
5.0%
232
CCC '11 S1 - English or French?
CCC
5
35.5%
5720
CCC '04 J4 - Simple Encryption
CCC
5
51.1%
1706
CCC '08 S1 - It's Cold Here!
CCC
5
37.4%
2170
CCC '08 S2 - Pennies in the Ring
CCC
5
30.5%
1182
CCC '05 S1 - Snow Calls
CCC
5
43.3%
2268
CCC '05 S2 - Mouse Move
CCC
5
37.2%
1682
CCC '10 J2 - Up and Down
CCC
5
21.8%
2035
CCC '10 J3 - Punchy
CCC
5
33.0%
1394
CCC '10 J4 - Global Warming
CCC
5p
22.5%
1054
CCC '09 J2 - Old Fishin' Hole
CCC
5
39.2%
1579
CCC '09 J3 - Good Times
CCC
5
20.3%
1377
CCC '09 S1 - Cool Numbers
CCC
5
22.8%
2023
DMOPC '14 Contest 1 P1 - Median Mark
DMOPC
5p
20.3%
653
CCC '13 S2 - Bridge Transport
CCC
5
26.8%
2050
DMOPC '14 Contest 1 P4 - Perfect Timing
DMOPC
5p
25.2%
158
CCC '12 S2 - Aromatic Numbers
CCC
5
53.4%
1703
Binary
Uncategorized
5
24.1%
885
COCI '14 Contest 1 #1 Prosjek
COCI
5p
58.5%
323
COCI '14 Contest 1 #2 Klopka
COCI
5p
45.5%
331
DMOPC '14 Contest 2 P4 - Deforestation
DMOPC
5p
32.6%
1786
The Cosmic Era P2 - Uneven Sand
Uncategorized
5
24.4%
896
COCI '14 Contest 2 #1 Mobitel
COCI
5p
51.0%
203
COCI '14 Contest 2 #2 Utrka
COCI
5p
28.8%
742
DMOPC '14 Contest 2 P2 - Cutting Logs
DMOPC
5p
38.3%
543
CCC '10 S1 - Computer Purchase
CCC
5
14.0%
1315
CCC '10 S2 - Huffman Encoding
CCC
5
53.5%
1568
DMOPC '13 Contest 3 P1 - Sharing is Caring
DMOPC
5p
34.9%
306
GFSSOC '14 Winter J4 - Tic Tac Moe!
GFSSOC
5p
29.1%
347
GFSSOC '14 Winter S1 - Friendship is a number
GFSSOC
5p
42.5%
199
GFSSOC '14 Winter S2 - Speech
GFSSOC
5p
24.3%
166
DMOPC '14 Contest 3 P2 - Not Enough Rejudging!
DMOPC
5p
27.1%
248
COCI '14 Contest 3 #1 Strojopis
COCI
5p
62.0%
164
CCC '03 S1 - Snakes and Ladders
CCC
5
20.5%
3102
CCC '03 S2 - Poetry
CCC
5
17.3%
1451
STNBD P3 - Rinslet Laurenfrost
Uncategorized
5p
29.8%
132
CCC '02 S1 - The Students' Council Breakfast
CCC
5
39.5%
1495
CCC '02 S2 - Fraction Action
CCC
5
18.9%
1874
CCC '07 S2 - Boxes
CCC
5
27.6%
1209
TSOC '15 Contest 1 #4 - Restaurant Of Secrets
TSOC
5p
27.5%
44
COCI '14 Contest 4 #1 Cesta
COCI
5p
31.3%
180
New Year's '15 P2 - Food Selection
Seasonal
5p
36.2%
109
New Year's '15 P3 - Gift Wrap
Seasonal
5
61.5%
152
VM7WC '15 #1 Silver - Jung Goon
VM7WC
5
45.0%
215
DMOPC '14 Exam Time P2 - Physics Duel
DMOPC
5p
46.1%
125
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