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Hot problems
COCI '08 Contest 3 #6 Najkraci
APIO '10 P1 - Commando
DWITE '10 R3 #3 - Dominos Tiling
CCC '24 J4 - Troublesome Keys
A Math Contest P5 - Good Arrays
CCC '24 J5 - Harvest Waterloo
CCC '24 J3 - Bronze Count
Problem
Category ▴
Points
AC %
Users
CCC '16 S3 - Phonomenal Reviews
CCC
12p
26.4%
1103
CCC '16 S5 - Circle of Life
CCC
20p
22.5%
578
CCC '16 J1 - Tournament Selection
CCC
3
41.2%
4717
CCC '16 J2 - Magic Squares
CCC
3
34.5%
3251
CCC '16 J3 - Hidden Palindrome
CCC
5
45.9%
2562
CCC '16 J4 - Arrival Time
CCC
5
29.1%
1682
CCOQR '16 - Stupendous Bowties
CCC
10p
31.8%
248
CCOQR '16 - Through A Maze Darkly
CCC
20p
18.4%
104
CCOQR '16 - Data Structure
CCC
15p
22.1%
177
CCCHK '15 J1 - Rock-paper-scissors
CCC
3
51.7%
854
CCCHK '15 J2 - What is the minimum area?
CCC
5
35.7%
267
CCCHK '15 J3 - Queens can't attack me!
CCC
5
51.1%
613
CCCHK '15 J4 - Where to build my house?
CCC
5
18.0%
270
CCCHK '15 J5 - No friends in the same group.
CCC
15p
9.8%
33
CCC '05 S3 - Quantum Operations
CCC
10p
34.8%
439
CCC '05 S4 - Pyramid Message Scheme
CCC
10
35.7%
819
CCC '01 S4 - Cookies
CCC
10
19.2%
418
CCC '05 J4 - Cross Spiral
CCC
7p
32.6%
581
CCC '01 S5 - Post's Correspondence Problem
CCC
10
28.9%
315
CCC '96 S2 - Divisibility by 11
CCC
7
6.8%
179
CCC '96 S5 - Maximum Distance
CCC
7
25.4%
417
CCC '96 S3 - Pattern Generator
CCC
5
11.0%
355
CCC '98 S2 - Cross Number Puzzle
CCC
5
43.1%
495
CCC '01 S3 - Strategic Bombing
CCC
7
38.7%
1458
CCC '01 S1 - Keeping Score
CCC
5
32.7%
1504
CCC '01 S2 - Spirals
CCC
5
41.2%
912
CCC '02 S3 - Blindfold
CCC
15
6.1%
150
CCC '02 S4 - Bridge Crossing
CCC
10p
37.2%
888
CCC '02 S5 - Follow the Bouncing Ball
CCC
10
13.8%
190
CCC '00 S4 - Golf
CCC
7
24.5%
2308
CCC '98 S3 - Mars Rover
CCC
7p
16.5%
161
CCC '98 S4 - Lottery
CCC
10
9.6%
92
CCC '98 S5 - Mountain Passage
CCC
10
13.0%
148
CCC '97 S1 - Sentences
CCC
5
29.4%
1021
CCC '97 S2 - Nasty Numbers
CCC
5
46.0%
797
CCC '97 S3 - Double Knockout Competition
CCC
5
10.2%
167
CCC '97 S4 - Dynamic Dictionary Coding
CCC
5
11.8%
221
CCC '97 S5 - Long Division
CCC
10
9.9%
65
CCC '99 S1 - Card Game
CCC
5
31.3%
1001
CCC '99 S2 - Year 2000
CCC
7
14.6%
105
CCC '99 S3 - Divided Fractals
CCC
7
16.5%
68
CCC '99 S4 - A Knightly Pursuit
CCC
12
18.7%
348
CCC '99 S5 - Letter Arithmetic
CCC
12
16.0%
77
CCC '00 J1 - Calendar
CCC
5
11.2%
1357
CCC '00 J2 - 9966
CCC
3
35.8%
1959
CCC '00 S1 - Slot Machines
CCC
5
27.3%
4529
CCC '00 S2 - Babbling Brooks
CCC
7
34.1%
2537
CCC '00 S5 - Sheep and Coyotes
CCC
10p
4.1%
178
CCC '00 S3 - Surfing
CCC
7
17.5%
621
CCCHK '08 J1 - Best fish
CCC
3
38.1%
805
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