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Hot problems
COCI '08 Contest 3 #6 Najkraci
APIO '10 P1 - Commando
CCC '24 J5 - Harvest Waterloo
CCC '04 S2 - TopYodeller
DWITE '10 R3 #3 - Dominos Tiling
TSS Club Fair 2017 Problem B
CCC '24 J4 - Troublesome Keys
Problem
Category
Points
AC %
Users ▾
CCC '99 S1 - Card Game
CCC
5
31.3%
1001
Mock CCC '19 Contest 1 J1 - Pusheen's Report Card
Mock CCC
3p
36.1%
970
CCC '16 S4 - Combining Riceballs
CCC
15p
28.8%
947
CCC '01 S2 - Spirals
CCC
5
41.2%
912
CCC '09 S2 - Lights Going On and Off
CCC
10
40.6%
902
CCC '08 J4 - From Prefix to Postfix
CCC
7
42.8%
888
CCC '02 S4 - Bridge Crossing
CCC
10p
37.2%
888
CCC '07 S5 - Bowling for Numbers
CCC
10p
29.9%
868
CCCHK '15 J1 - Rock-paper-scissors
CCC
3
51.7%
854
CCCHK '08 J2 - Lucky Number
CCC
3
26.8%
845
CCC '20 S3 - Searching for Strings
CCC
12p
8.9%
843
Mock CCC '20 Contest 1 J1 - A Rage Tree Problem
Mock CCC
3p
48.3%
826
CCC '05 S4 - Pyramid Message Scheme
CCC
10
35.7%
819
CCC '23 S2 - Symmetric Mountains
CCC
7p
26.5%
815
CCCHK '08 J1 - Best fish
CCC
3
38.1%
805
CCC '97 S2 - Nasty Numbers
CCC
5
46.0%
797
CCC '17 S4 - Minimum Cost Flow
CCC
17p
14.1%
771
Mock CCC '15 J1 - 416
Mock CCC
3p
24.2%
762
Mock CCC '19 Contest 2 J1 - Tudor Drinks Some Tea
Mock CCC
3p
51.6%
748
CCC '08 S4 - Twenty-four
CCC
10
25.5%
744
CCC '05 S5 - Pinball Ranking
CCC
12p
19.5%
741
Mock CCC '23 Contest 1 J1 - Final Velocity
Mock CCC
3
65.5%
741
CCC '13 S5 - Factor Solitaire
CCC
15p
42.8%
735
CCC '04 S2 - TopYodeller
CCC
5
21.5%
732
Mock CCC '19 Contest 1 J2 - Pusheen OCR
Mock CCC
3p
54.8%
725
CCC '02 J1 - 0123456789
CCC
3
5.4%
724
CCC '08 S5 - Nukit
CCC
10p
37.1%
708
Mock CCC '22 Contest 2 J1 - Opening Ceremony
Mock CCC
3
48.3%
707
CCC '09 J4 - Signage
CCC
7
29.2%
685
CCC '03 S5 - Trucking Troubles
CCC
10p
17.6%
684
CCC '14 S4 - Tinted Glass Window
CCC
15p
29.2%
673
Mock CCC '22 Contest 1 J1 - Square Root Decomposition
Mock CCC
3
39.9%
666
CCC '22 S3 - Good Samples
CCC
10p
18.3%
656
CCC '10 S3 - Firehose
CCC
15p
18.6%
651
CCCJQR P1
Seasonal
0
72.6%
642
Mock CCC '19 Contest 1 S1 - Pusheen's Report Card
Mock CCC
3p
41.3%
630
CCCHK '08 J3 - Phone book
CCC
5p
34.6%
625
CCC '09 S5 - Wireless
CCC
12p
34.8%
622
CCC '00 S3 - Surfing
CCC
7
17.5%
621
CCC '04 S3 - Spreadsheet
CCC
10
27.0%
614
CCCHK '15 J3 - Queens can't attack me!
CCC
5
51.1%
613
CCC '24 J1 - Conveyor Belt Sushi
CCC
3p
76.8%
607
Mock CCC '18 Contest 3 J1 - A Sum Problem
Mock CCC
3p
61.2%
604
Mock CCC '20 Contest 1 J2 - A Simplex Problem
Mock CCC
3p
52.0%
595
CCC '21 S4 - Daily Commute
CCC
12p
26.0%
585
CCC '05 J4 - Cross Spiral
CCC
7p
32.6%
581
CCC '16 S5 - Circle of Life
CCC
20p
22.5%
578
CCC '18 S4 - Balanced Trees
CCC
15p
16.9%
576
Mock CCC '18 Contest 5 J1 - Looking for the CCC
Mock CCC
3p
44.7%
570
Mock CCC '22 Contest 2 J2 - Snowboarding Championship
Mock CCC
3
35.7%
570
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