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Hot problems
CCC '21 J3 - Secret Instructions
Problem
Category ▴
Points
AC %
Users
CCO '17 P3 - Vera and Modern Art
CCO
30p
13.9%
93
CCO '17 P4 - Rainfall Storage
CCO
20p
36.2%
177
CCO '17 P5 - Professional Network
CCO
20p
32.6%
167
CCO '17 P6 - Shifty Grid
CCO
30p
17.8%
34
CCO '08 P5 - Candy
CCO
7p
18.2%
237
CCO '18 P1 - Geese vs. Hawks
CCO
10p
37.6%
574
CCO '18 P2 - Wrong Answer
CCO
12p
15.6%
118
CCO '18 P3 - Fun Palace
CCO
30p
17.6%
76
CCO '18 P4 - Gradient Descent
CCO
15p
14.5%
254
CCO '18 P5 - Boring Lectures
CCO
20p
19.2%
127
CCO '18 P6 - Flop Sorting
CCO
30p
17.4%
59
CCO '18 P5 - Boring Lectures (Online Version)
CCO
30p
7.3%
50
CCO '96 P1 - Train Swapping
CCO
5
26.9%
212
CCO '96 P2 - SafeBreaker
CCO
10
36.2%
89
CCO '96 P3 - Quadtrees
CCO
15
48.7%
85
CCO '96 P4 - Where's Waldorf?
CCO
7
47.2%
81
CCO '96 P5 - All Roads Lead Where?
CCO
7
62.6%
271
CCO '96 P6 - Hoppers
CCO
15
15.5%
29
CCO '98 P1 - Fibonacci Numbers
CCO
7
26.2%
158
CCO '97 P1 - Palindromes
CCO
10
11.0%
22
CCO '97 P2 - Alien Invasion
CCO
10
43.4%
54
CCO '97 P3 - Porous Stone
CCO
10
33.3%
2
CCO '97 P4 - High Tide
CCO
10
11.8%
3
CCO '97 P5 - Space Aliens
CCO
10
46.7%
3
CCO '97 P6 - Aligning DNA
CCO
7
19.1%
11
CCO '98 P2 - Message Deciphering
CCO
7
54.5%
22
CCO '98 P3 - Bus Schedule
CCO
12
12.5%
2
CCO '98 P4 - Scoring Curling
CCO
7p
25.0%
8
CCO '98 P5 - Text Segmentation
CCO
10
23.7%
18
CCO '98 P6 - Derek's Dilemma
CCO
12
46.7%
4
CCO '99 P1 - You Can't Get There From Here
CCO
7
26.5%
16
CCO '99 P3 - Manelzuma's Revenge
CCO
10
28.6%
2
CCO '99 P4 - Maple Roundup
CCO
10
21.1%
28
CCO '99 P5 - Sum Of Products
CCO
15
4.3%
1
CCO '99 P6 - Fast Food
CCO
15
34.4%
10
CCO '00 P2 - Ransom Note
CCO
12p
7.7%
6
CCO '00 P3 - The Game Of 31
CCO
15
54.5%
11
CCO '09 P1 - Invasion of the Boxes
CCO
20p
12.8%
22
CCO '09 P2 - Dinner
CCO
20p
9.8%
50
CCO '09 P3 - Beware the Geoducks
CCO
10
9.8%
34
CCO '09 P5 - Parade
CCO
17p
17.3%
43
CCO '09 P6 - A Weighty Problem
CCO
12p
16.1%
76
CCO '09 P4 - Bottle Caps
CCO
20p
14.5%
39
CCO '00 P4 - Packet Routing
CCO
7
59.8%
58
CCO '00 P5 - Millikan's Oil Droplet Experiment
CCO
7
22.3%
54
CCO '00 P6 - Extension Cords
CCO
12
18.0%
7
CCO '01 P1 - The Monkey Dance
CCO
10
41.5%
222
CCO '01 P2 - Coke or Chocolate Milk
CCO
12
17.1%
11
CCO '01 P3 - Partitions
CCO
12
33.9%
63
CCO '19 P1 - Human Error
CCO
10p
30.4%
88
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