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Hot problems
CCC '24 S2 - Heavy-Light Composition
DWITE '07 R3 #1 - Yet Another Primes Question
DWITE '07 R2 #1 - Not Quite Prime
CCC '24 J3 - Bronze Count
CCO '24 P1 - Treasure Hunt
Back to School '24 P1 - Kicking
CCC '24 J4 - Troublesome Keys
Problem
Category
Types
Points
AC %
Users
CCC '10 J4 - Global Warming
CCC
Implementation
5p
22.7%
1085
CCC '10 J5 - Knight Hop
CCC
Graph Theory
7
36.6%
2451
CCC '10 S1 - Computer Purchase
CCC
Simple Math
5
14.2%
1357
CCC '10 S2 - Huffman Encoding
CCC
String Algorithms
5
53.8%
1617
CCC '10 S3 - Firehose
CCC
Data Structures
,
Implementation
15p
18.7%
685
CCC '10 S4 - Animal Farm
CCC
Graph Theory
15p
25.7%
538
CCC '10 S5 - Nutrient Tree
CCC
Dynamic Programming
20p
19.7%
270
CCC '11 J1 - Which Alien?
CCC
Implementation
3
35.7%
6491
CCC '11 J2 - Who Has Seen The Wind
CCC
Implementation
5
25.6%
1917
CCC '11 J3 - Sumac Sequences
CCC
Simple Math
5
43.3%
2956
CCC '11 J4 - Boring Business
CCC
Implementation
7
27.8%
1547
CCC '11 J5 - Unfriend
CCC
Graph Theory
7
46.9%
1027
CCC '11 S1 - English or French?
CCC
String Algorithms
5
35.5%
6002
CCC '11 S2 - Multiple Choice
CCC
Implementation
3
55.0%
6485
CCC '11 S3 - Alice Through the Looking Glass
CCC
Recursion
10p
36.1%
1218
CCC '11 S4 - Blood Distribution
CCC
Graph Theory
,
Greedy Algorithms
15p
8.0%
165
CCC '11 S5 - Switch
CCC
Graph Theory
12p
18.1%
421
CCC '12 J1 - Speed fines are not fine!
CCC
Implementation
3
30.8%
5902
CCC '12 J2 - Sounds fishy!
CCC
Implementation
3
34.1%
4713
CCC '12 J3 - Icon Scaling
CCC
Implementation
3
51.0%
2934
CCC '12 J4 - Big Bang Secrets
CCC
String Algorithms
3
59.2%
2467
CCC '12 S1 - Don't pass me the ball!
CCC
Simple Math
3
56.4%
2286
CCC '12 S2 - Aromatic Numbers
CCC
Simple Math
5
53.3%
1743
CCC '12 S3 - Absolutely Acidic
CCC
Implementation
7
26.7%
1886
CCC '12 S4 - A Coin Game
CCC
Graph Theory
15
27.0%
468
CCC '12 S5 - Mouse Journey
CCC
Dynamic Programming
7
45.6%
1853
CCC '13 J1 - Next in line
CCC
Implementation
3
62.3%
12560
CCC '13 J2 - Rotating letters
CCC
Implementation
3
45.1%
4943
CCC '13 J4 - Time on task
CCC
Greedy Algorithms
5
44.6%
3077
CCC '13 S1 - From 1987 to 2013
CCC
Implementation
5
46.1%
4026
CCC '13 S2 - Bridge Transport
CCC
Simple Math
5
26.8%
2095
CCC '13 S3 - Chances of Winning
CCC
Brute Force
10
41.4%
1389
CCC '13 S4 - Who is Taller?
CCC
Graph Theory
7
16.8%
1254
CCC '13 S5 - Factor Solitaire
CCC
Greedy Algorithms
,
Intermediate Math
15p
43.0%
747
CCC '14 J1 - Triangle Times
CCC
Implementation
3
32.9%
7632
CCC '14 J2 - Vote Count
CCC
Implementation
3
44.5%
5495
CCC '14 J3 - Double Dice
CCC
Implementation
3
56.3%
4603
CCC '14 S1 - Party Invitation
CCC
Implementation
5
47.2%
3597
CCC '14 S2 - Assigning Partners
CCC
Implementation
5
33.3%
2908
CCC '14 S3 - The Geneva Confection
CCC
Implementation
7p
26.6%
2856
CCC '14 S4 - Tinted Glass Window
CCC
Data Structures
,
Geometry
15p
29.2%
687
CCC '14 S5 - Lazy Fox
CCC
Dynamic Programming
20p
17.9%
468
CCC '15 J1 - Special Day
CCC
Implementation
3
36.9%
8733
CCC '15 J2 - Happy or Sad
CCC
Implementation
3
37.2%
7395
CCC '15 J3 - Rövarspråket
CCC
Implementation
5p
38.6%
2329
CCC '15 J4 - Wait Time
CCC
Implementation
5
39.5%
1347
CCC '15 J5 - π-day
CCC
Dynamic Programming
10p
27.4%
1512
CCC '15 S1 - Zero That Out
CCC
Implementation
3
51.1%
3935
CCC '15 S2 - Jerseys
CCC
Implementation
5p
26.7%
1992
CCC '15 S3 - Gates
CCC
Data Structures
10p
18.8%
1809
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