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Random
Hot problems
CCC '24 S2 - Heavy-Light Composition
String Finding
CCO '07 P2 - Snowflakes
COCI '11 Contest 5 #2 Eko
APIO '09 P3 - The Great ATM Robbery
CCC '24 J4 - Troublesome Keys
Problem
Category ▾
Points
AC %
Users
Good Debugging
Uncategorized
17
26.4%
129
Good Code
Uncategorized
15
12.3%
24
Good Predictions
Uncategorized
10
33.0%
73
Good Strategy
Uncategorized
10
25.0%
68
Good Travels
Uncategorized
17
20.6%
70
Good Aim
Uncategorized
10
17.4%
31
Good Celebration
Uncategorized
12
13.2%
26
Good Inflation
Uncategorized
20
15.1%
39
PEG Test '11 - Cyclopian Census
Uncategorized
5
49.2%
213
PEG Test '11 - Cyclopian Air
Uncategorized
3
29.1%
259
PEG Test '11 - Cyclopian Puzzle
Uncategorized
10
54.1%
353
PEG Test '11 - Cyclopian Cash
Uncategorized
3
28.4%
282
PEG Test '11 - Cyclopian Suits
Uncategorized
3
24.6%
182
Maximum Sum
Uncategorized
7
33.4%
789
A Game
Uncategorized
10
29.9%
368
Longest Increasing Subsequence
Uncategorized
7
29.4%
650
Counting Subsequences
Uncategorized
10
21.5%
305
Boxlings
Uncategorized
15p
16.9%
43
Union Laser
Uncategorized
25p
35.0%
3
Boxdropper
Uncategorized
20p
21.8%
19
PEG Test '14 - Water
Uncategorized
3
54.6%
870
PEG Test '14 - Air
Uncategorized
7
21.1%
48
PEG Test '14 - Spirits
Uncategorized
10
10.5%
15
PEG Test '14 - Earth
Uncategorized
3
36.3%
307
PEG Test '14 - Balance
Uncategorized
5
40.3%
206
PEG Test '14 - Change
Uncategorized
7
39.3%
50
PEG Test '14 - Fire
Uncategorized
5
36.9%
209
Graph Contest 1 P2 - Shortest Path
Uncategorized
5
26.9%
393
Graph Contest 2 P1 - Connected Components
Uncategorized
7
36.2%
250
Graph Contest 3 P1 - Travelling Salesmen
Uncategorized
7
33.4%
298
Graph Contest 2 P3 - Trees
Uncategorized
7
33.5%
148
Graph Contest 3 P3 - Cable TV
Uncategorized
7
39.2%
187
Graph Contest 1 P1 - Counting Paths
Uncategorized
10
19.4%
95
Graph Contest 2 P2 - Directed Acyclic Graph
Uncategorized
10
17.4%
393
Graph Contest 3 P2 - Shortest Path
Uncategorized
10p
24.1%
287
Graph Contest 1 P3 - Counting Cycles
Uncategorized
10
16.0%
113
ACSL '09 Contest 1 Senior - Bridge
Uncategorized
10p
25.0%
15
ACSL '09 Contest 3 Senior - Pinochle
Uncategorized
10p
34.1%
3
ACSL '09 Practice P3 - Zeroes
Uncategorized
10
21.6%
126
ACSL '09 Practice P1 - Kansas
Uncategorized
7
14.7%
67
ACSL '09 Practice P5 - Fax
Uncategorized
12p
29.3%
18
ACSL '09 Practice P4 - Rank
Uncategorized
7
45.9%
850
ACSL '09 Practice P7 - Cube
Uncategorized
15
16.1%
27
ACSL '09 Practice P2 - Cars
Uncategorized
10p
19.1%
36
ACSL '09 Practice P6 - Expression
Uncategorized
10p
11.4%
29
SMAC 08/09 (Nov) #2 - Stock Market II
Uncategorized
10p
7.6%
19
SMAC 08/09 (Oct) #2 - Digging for Gold
Uncategorized
10
19.2%
53
SMAC 08/09 (Oct) #5 - Crossroads
Uncategorized
12p
25.1%
30
SMAC 08/09 (Nov) #3 - Factor Game
Uncategorized
15
23.9%
49
SMAC 08/09 (Nov) #5 - Intelligent Stats
Uncategorized
10p
40.7%
21
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