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Hot problems
CCC '24 S2 - Heavy-Light Composition
APIO '09 P3 - The Great ATM Robbery
COCI '11 Contest 5 #2 Eko
String Finding
CCO '07 P2 - Snowflakes
CCC '24 J4 - Troublesome Keys
Problem ▴
Category
Points
AC %
Users
CCC '11 J5 - Unfriend
CCC
7
46.8%
1003
CCC '11 S1 - English or French?
CCC
5
35.5%
5768
CCC '11 S2 - Multiple Choice
CCC
3
55.1%
6277
CCC '11 S3 - Alice Through the Looking Glass
CCC
10p
36.0%
1196
CCC '11 S4 - Blood Distribution
CCC
15p
7.7%
157
CCC '11 S5 - Switch
CCC
12p
18.3%
414
CCC '12 J1 - Speed fines are not fine!
CCC
3
30.8%
5784
CCC '12 J2 - Sounds fishy!
CCC
3
33.8%
4588
CCC '12 J3 - Icon Scaling
CCC
3
51.3%
2881
CCC '12 J4 - Big Bang Secrets
CCC
3
59.2%
2401
CCC '12 S1 - Don't pass me the ball!
CCC
3
56.4%
2235
CCC '12 S2 - Aromatic Numbers
CCC
5
53.4%
1709
CCC '12 S3 - Absolutely Acidic
CCC
7
26.6%
1856
CCC '12 S4 - A Coin Game
CCC
15
26.9%
457
CCC '12 S5 - Mouse Journey
CCC
7
45.6%
1816
CCC '13 J1 - Next in line
CCC
3
62.3%
12062
CCC '13 J2 - Rotating letters
CCC
3
45.0%
4836
CCC '13 J4 - Time on task
CCC
5
44.5%
3009
CCC '13 S1 - From 1987 to 2013
CCC
5
45.8%
3922
CCC '13 S2 - Bridge Transport
CCC
5
26.7%
2056
CCC '13 S3 - Chances of Winning
CCC
10
41.2%
1364
CCC '13 S4 - Who is Taller?
CCC
7
16.8%
1231
CCC '13 S5 - Factor Solitaire
CCC
15p
42.8%
732
CCC '14 J1 - Triangle Times
CCC
3
32.9%
7477
CCC '14 J2 - Vote Count
CCC
3
44.5%
5371
CCC '14 J3 - Double Dice
CCC
3
56.3%
4486
CCC '14 S1 - Party Invitation
CCC
5
47.1%
3524
CCC '14 S2 - Assigning Partners
CCC
5
33.3%
2843
CCC '14 S3 - The Geneva Confection
CCC
7p
26.4%
2807
CCC '14 S4 - Tinted Glass Window
CCC
15p
29.2%
672
CCC '14 S5 - Lazy Fox
CCC
20p
17.8%
455
CCC '15 J1 - Special Day
CCC
3
36.9%
8370
CCC '15 J2 - Happy or Sad
CCC
3
37.1%
7059
CCC '15 J3 - Rövarspråket
CCC
5p
38.5%
2267
CCC '15 J4 - Wait Time
CCC
5
39.4%
1313
CCC '15 J5 - π-day
CCC
10p
27.4%
1463
CCC '15 S1 - Zero That Out
CCC
3
51.0%
3878
CCC '15 S2 - Jerseys
CCC
5p
26.7%
1957
CCC '15 S3 - Gates
CCC
10p
18.7%
1776
CCC '15 S4 - Convex Hull
CCC
15p
27.4%
1159
CCC '15 S5 - Greedy For Pies
CCC
17p
23.4%
554
CCC '16 J1 - Tournament Selection
CCC
3
41.2%
4707
CCC '16 J2 - Magic Squares
CCC
3
34.5%
3243
CCC '16 J3 - Hidden Palindrome
CCC
5
45.9%
2551
CCC '16 J4 - Arrival Time
CCC
5
29.0%
1680
CCC '16 S1 - Ragaman
CCC
3p
29.7%
2300
CCC '16 S2 - Tandem Bicycle
CCC
5p
53.2%
3500
CCC '16 S3 - Phonomenal Reviews
CCC
12p
26.4%
1103
CCC '16 S4 - Combining Riceballs
CCC
15p
28.8%
935
CCC '16 S5 - Circle of Life
CCC
20p
22.6%
577
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