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Hot problems
COCI '08 Contest 3 #6 Najkraci
DWITE '10 R3 #3 - Dominos Tiling
TSS Club Fair 2017 Problem B
ECOO '13 R1 P1 - Take a Number
CCC '24 J4 - Troublesome Keys
CCC '04 S2 - TopYodeller
An Animal Contest 2 P3 - Koala Balloons
Problem
Category ▴
Points
AC %
Users
CCC '05 J3 - Returning Home
CCC
5
37.2%
2364
CCC '05 J5 - Bananas
CCC
10
21.6%
1469
CCC '06 J2 - Roll the Dice
CCC
3
27.1%
3040
CCC '06 S5 - Origin of Life
CCC
15
18.6%
119
CCC '06 J3 - Cell-Phone Messaging
CCC
3
41.3%
1466
CCC '06 J1 - Canadian Calorie Counting
CCC
3
27.4%
7227
CCC '11 J2 - Who Has Seen The Wind
CCC
5
25.7%
1867
CCC '11 J3 - Sumac Sequences
CCC
5
43.3%
2875
CCC '06 J4 - It's tough being a teen!
CCC
7
41.5%
1242
CCC '11 J4 - Boring Business
CCC
7
27.8%
1508
CCC '06 S1 - Maternity
CCC
5
37.5%
1147
CCC '06 S2 - Attack of the CipherTexts
CCC
5
5.2%
239
CCC '06 S3 - Tin Can Telephone
CCC
12
20.8%
528
CCC '06 S4 - Groups
CCC
10
46.5%
328
CCC '11 S1 - English or French?
CCC
5
35.6%
5779
CCC '11 S2 - Multiple Choice
CCC
3
55.1%
6284
CCC '08 S3 - Maze
CCC
7
29.3%
1563
CCC '03 S4 - Substrings
CCC
15p
7.7%
372
CCC '04 J1 - Squares
CCC
3
32.5%
6135
CCC '04 J2 - Terms of Office
CCC
3
37.4%
3514
CCC '04 J3 - Smile with Similes
CCC
3
57.8%
3974
CCC '04 J4 - Simple Encryption
CCC
5
51.0%
1711
CCC '04 J5 - Fractals
CCC
10
35.7%
220
CCC '07 J1 - Who is in the Middle?
CCC
3
47.0%
9182
CCC '07 J2 - I Speak TXTMSG
CCC
3
21.7%
2290
CCC '07 J3 - Deal or No Deal Calculator
CCC
3
33.1%
3258
CCC '07 J5 - Keep on Truckin'
CCC
7
19.7%
1073
CCC '07 S5 - Bowling for Numbers
CCC
10p
29.9%
868
CCC '08 J1 - Body Mass Index
CCC
3
34.8%
5626
CCC '08 J2 - Do the Shuffle
CCC
3
43.3%
3440
CCC '08 J3 - GPS Text Entry
CCC
3
56.0%
1341
CCC '08 J4 - From Prefix to Postfix
CCC
7
42.8%
888
CCC '08 S5 - Nukit
CCC
10p
37.1%
708
CCC '08 S1 - It's Cold Here!
CCC
5
37.5%
2181
CCC '08 S2 - Pennies in the Ring
CCC
5
30.5%
1184
CCC '08 S4 - Twenty-four
CCC
10
25.5%
744
CCC '96 S4 - When in Rome
CCC
10
33.0%
569
CCC '13 S4 - Who is Taller?
CCC
7
16.8%
1233
CCC '05 S1 - Snow Calls
CCC
5
43.3%
2278
CCC '05 S2 - Mouse Move
CCC
5
37.3%
1685
CCC '10 J1 - What is n, Daddy?
CCC
3
30.8%
4023
CCC '10 J2 - Up and Down
CCC
5
21.8%
2052
CCC '10 J3 - Punchy
CCC
5
33.0%
1398
CCC '10 J4 - Global Warming
CCC
5p
22.5%
1057
CCC '10 J5 - Knight Hop
CCC
7
36.6%
2406
CCC '09 J2 - Old Fishin' Hole
CCC
5
39.1%
1590
CCC '09 J3 - Good Times
CCC
5
20.3%
1384
CCC '09 J4 - Signage
CCC
7
29.2%
685
CCC '09 S3 - Degrees Of Separation
CCC
10
28.0%
1349
CCC '09 S1 - Cool Numbers
CCC
5
22.8%
2027
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