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Hot problems
Educational DP Contest AtCoder T - Permutation
APIO '09 P3 - The Great ATM Robbery
CCC '24 S2 - Heavy-Light Composition
COCI '11 Contest 5 #2 Eko
ICPC PACNW 2016 A - Alphabet
Appleby Contest '19 P5 - Matrix Operation
Max's Anger Contest Series 2 P3 - Array Anger
Problem ▾
Category
Points
AC %
Users
SAC '22 Code Challenge 3 Junior P2 - Normal Lines
SAC Coding Challenge
3p
67.4%
283
SAC '22 Code Challenge 3 Junior P1 - Normal Problem
SAC Coding Challenge
3p
66.3%
331
SAC '22 Code Challenge 2 P5 - Even Colouring
SAC Coding Challenge
10p
35.1%
75
SAC '22 Code Challenge 2 P4 - Cookie Galore
SAC Coding Challenge
10
35.4%
99
SAC '22 Code Challenge 2 P3 - Rating Choices
SAC Coding Challenge
7
37.2%
79
SAC '22 Code Challenge 2 P2 - Cookie Sprinkler
SAC Coding Challenge
5
53.0%
105
SAC '22 Code Challenge 2 P1 - Calendar Management
SAC Coding Challenge
5
32.3%
94
SAC '22 Code Challenge 1 P5 - That Wall
SAC Coding Challenge
12
26.9%
31
SAC '22 Code Challenge 1 P4 - That Problem
SAC Coding Challenge
7p
19.6%
75
SAC '22 Code Challenge 1 P3 - That Pool
SAC Coding Challenge
7p
16.8%
86
SAC '22 Code Challenge 1 P2 - That Circle
SAC Coding Challenge
3
48.3%
247
SAC '22 Code Challenge 1 P1 - That Teacher
SAC Coding Challenge
3
68.9%
599
SAC '21 Code Challenge P5 - Friends of Friends
SAC Coding Challenge
7p
22.2%
255
SAC '21 Code Challenge P4 - Averaging Averages
SAC Coding Challenge
5p
26.8%
203
SAC '21 Code Challenge P3 - DeMello's Replacement
SAC Coding Challenge
5
19.5%
201
SAC '21 Code Challenge P2 - Littering
SAC Coding Challenge
5p
36.0%
262
SAC '21 Code Challenge P1 - Shrinkage
SAC Coding Challenge
3
51.2%
492
Rule of Lemons
Uncategorized
10
16.7%
5
Rubik's Cube Solver
Uncategorized
50p
0.7%
2
RTE '16 S3 - School Traversal
Uncategorized
7p
21.2%
279
RTE '16 S2 - Fire Evacuation Plan
Uncategorized
12p
14.9%
74
RTE '16 S1 - Battery Pyramids
Uncategorized
7p
31.8%
79
RTE '16 J3 - Mule Wars
Uncategorized
5p
36.0%
57
RTE '16 J2 - Guidance Counselling
Uncategorized
7p
17.6%
55
RTE '16 J1 - Board Game
Uncategorized
3
21.4%
295
Rotations in 3 Dimensions
Uncategorized
12
29.6%
118
Root Solver
Uncategorized
30p
3.7%
9
Rolling Encryption
Uncategorized
10
20.5%
97
ROI '17 P4 - Travel To Metropolis
Uncategorized
25p
10.9%
6
Rock Climbing
Uncategorized
5
22.4%
189
Road Redirection
Uncategorized
17
28.0%
21
Riolku's Mock CCC S5 - Keen Keener Multiset
Mock CCC
25p
6.6%
13
Riolku's Mock CCC S4 - Clumsy Cindy
Mock CCC
12p
10.7%
70
Riolku's Mock CCC S3 - Mosey's Birthday
Mock CCC
12p
11.7%
63
Riolku's Mock CCC S2 - Keen Keener Sequence (Hard Version)
Mock CCC
12
10.7%
17
Riolku's Mock CCC S2 - Keen Keener Sequence
Mock CCC
7p
15.4%
147
Riolku's Mock CCC S1 - Word Bot
Mock CCC
3p
32.2%
426
Riddle Troll
Uncategorized
10
27.3%
17
Richmond Green P4 - HEIGHT
Uncategorized
7p
46.8%
219
Richmond Green P3 - ABBA
Uncategorized
10p
31.3%
55
Richmond Green P2 - LOL
Uncategorized
3p
62.5%
228
Richmond Green P1 - HSIUNG
Uncategorized
5p
35.9%
146
RGPC '18 P5 - Wormhole
Uncategorized
20p
8.0%
7
RGPC '18 P4 - Higgs
Uncategorized
15p
18.4%
40
RGPC '18 P3 - Chocolate Day
Uncategorized
10
27.4%
266
RGPC '18 P2 - Performance Points
Uncategorized
5
8.8%
75
RGPC '18 P1 - Giant Cookie
Uncategorized
3
29.5%
262
RGPC '17 P5 - Scrabble Nuts
Uncategorized
12p
13.1%
211
RGPC '17 P4 - Snow Day
Uncategorized
10p
14.4%
102
RGPC '17 P3 - Intercept
Uncategorized
7
19.8%
43
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