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Hot problems
CCC '19 J3 - Cold Compress
CCC '11 S1 - English or French?
CCC '20 J4 - Cyclic Shifts
CCC '21 J4 - Arranging Books
CCC '21 S3 - Lunch Concert
UTS Open '24 P1 - Watering the Plants
COCI '08 Contest 1 #2 Ptice
Problem
Category
Points
AC %
Users
NOI '09 P1 - Transformed Sequence
China NOI
20p
21.0%
40
NOI '09 P2 - Little G the Poet
China NOI
25p
6.4%
13
NOI '09 P3 - Modified Treap
China NOI
20p
28.2%
45
NOI '09 P4 - Plants vs. Zombies
China NOI
25p
22.6%
35
NOI '09 P5 - Pipe Marbles
China NOI
25p
15.8%
61
NOI '09 P6 - Tracing
China NOI
20p
7.2%
3
NOI '10 P1 - Energy Harvesting
China NOI
17p
29.2%
73
NOI '10 P2 - Super Piano
China NOI
25p
15.8%
172
NOI '10 P3 - Altitude
China NOI
20p
14.8%
16
NOI '10 P4 - Flight Control
China NOI
20p
21.0%
29
NOI '10 P5 - Route Planning
China NOI
35p
5.3%
2
NOI '10 P6 - Happily Growing
China NOI
50p
1.9%
2
NOI '11 P1 - Rabbit Farming
China NOI
20p
6.5%
9
NOI '11 P2 - Intelligent Car Racing
China NOI
25p
12.2%
10
NOI '11 P3 - Ali's Typewriter
China NOI
30p
30.3%
25
NOI '11 P4 - Road Construction
China NOI
7p
45.0%
103
NOI '11 P5 - NOI Carnival
China NOI
25p
17.6%
17
NOI '11 P6 - Bunny and Eggy's Game
China NOI
25p
10.0%
5
NOI '12 P1 - Random Number Generator
China NOI
15p
25.1%
62
NOI '12 P2 - Highway Cycling
China NOI
25p
14.4%
16
NOI '12 P3 - Magic Chessboard
China NOI
40p
6.1%
10
NOI '12 P4 - Lost in the Park
China NOI
20p
11.1%
11
NOI '12 P5 - Food Festival
China NOI
30p
21.9%
8
NOI '12 P6 - Triple Town
China NOI
40p
0.0%
0
NOI '13 P1 - Inner Product
China NOI
20p
7.5%
23
NOI '13 P2 - Tree Count
China NOI
25p
12.3%
20
NOI '13 P3 - Little Q's Training
China NOI
25p
0.0%
0
NOI '13 P4 - Matrix Game
China NOI
20p
18.1%
32
NOI '13 P5 - Calligrapher
China NOI
30p
19.4%
6
NOI '13 P6 - Fast Food Restaurant
China NOI
30p
8.9%
12
NOI '14 P1 - Getting-Up Syndrome
China NOI
10p
26.7%
160
NOI '14 P2 - Enchanted Forest
China NOI
20p
9.9%
67
NOI '14 P3 - Deletion Game
China NOI
30p
0.3%
1
NOI '14 P4 - Zoo
China NOI
15p
28.3%
80
NOI '14 P5 - Random Number Generator
China NOI
12p
24.1%
52
NOI '14 P6 - Ticket Purchase
China NOI
30p
12.8%
39
NOI '15 P1 - Automated Program Analyzer
China NOI
12p
18.7%
102
NOI '15 P2 - Software Package Manager
China NOI
20p
30.5%
55
NOI '15 P3 - Sushi Dinner
China NOI
25p
14.0%
26
NOI '15 P4 - Homeric Epics
China NOI
25p
28.0%
30
NOI '15 P5 - Cocktail Party
China NOI
25p
43.5%
17
NOI '15 P6 - Farm
China NOI
25p
6.1%
6
NOI '16 P1 - Good Partitions
China NOI
20p
10.0%
9
NOI '16 P2 - Grid
China NOI
25p
7.0%
8
NOI '16 P3 - The Beauty of Cycles
China NOI
30p
29.2%
3
NOI '16 P4 - Interval
China NOI
20p
23.3%
48
NOI '16 P5 - Drinking Water
China NOI
20p
0.6%
1
NOI '16 P6 - Computation
China NOI
30p
2.2%
3
NOI '17 P1 - Integers
China NOI
20p
21.7%
13
NOI '17 P2 - Queue
China NOI
20p
40.6%
11
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