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Hot problems
BlueBook - 10 Primes on a Line
Baltic OI '05 P3 - Maze
CCC '00 S1 - Slot Machines
Single Source Shortest Path
Educational DP Contest AtCoder D - Knapsack 1
CCC '24 J5 - Harvest Waterloo
IOI '11 P2 - Race (Standard I/O)
Problem
Category ▴
Points
AC %
Users
Mynerva
Olympiads School
7p
18.4%
79
OCC '19 B6 - Fiji water
Olympiads School
10p
16.6%
19
OCC '19 B2 - Cinematic
Olympiads School
5
16.2%
75
OCC '19 B1 - Darcy_Liu
Olympiads School
3
15.2%
159
OCC '19 B5 - Gold
Olympiads School
7
12.0%
20
OCC '19 B4 - Bussing
Olympiads School
5
22.1%
15
OCC '19 B3 - Difference
Olympiads School
5
22.5%
81
OCC '19 S3 - NAN Language
Olympiads School
7p
14.4%
31
OCC '19 S6 - City Tolls
Olympiads School
17p
26.1%
4
OCC '19 G4 - Willson and Fighting
Olympiads School
30p
3.5%
3
OCC '19 G3 - Binary Game
Olympiads School
25p
14.3%
5
OCC '19 G1 - Top Coder
Olympiads School
10p
34.1%
43
OCC '19 G5 - King kobortor's Infrastructure
Olympiads School
17p
24.7%
23
OCC '19 S5 - Partitioning
Olympiads School
12p
8.2%
12
OCC '19 G2 - A Guessing Game
Olympiads School
25p
7.3%
6
OCC '19 G6 - Monkeys in a Tree
Olympiads School
30p
10.0%
9
DMOJLand Series: Fake Judges
Olympiads School
7p
38.6%
159
A Fenwick Tree Question
Olympiads School
15
30.0%
46
Palindrome Path
Olympiads School
20p
12.8%
9
A Sum Problem
Olympiads School
12p
13.0%
76
Athena on Zanzibar Island
Olympiads School
12p
6.7%
31
Magic Sequence
Olympiads School
7p
64.9%
92
Maximum Deviation Spanning Tree
Olympiads School
25p
4.0%
4
Least Multiple
Olympiads School
10p
8.0%
27
Fair Competition
Olympiads School
5
32.7%
121
Lemon Game
Olympiads School
7
28.6%
43
Permutation Sorting
Olympiads School
20p
15.6%
12
Tree Journey
Olympiads School
12p
49.1%
25
Infinity Card Decks
Olympiads School
15p
16.9%
12
City Travel
Olympiads School
15p
12.4%
12
Longest Up-Down Subsequence
POI
12p
29.6%
126
XIV POI Stage I - Queries
POI
15p
0.5%
1
Matchings
POI
30p
15.6%
3
SAC '22 Code Challenge 2 P4 - Cookie Galore
SAC Coding Challenge
10
35.5%
99
SAC '21 Code Challenge P1 - Shrinkage
SAC Coding Challenge
3
51.3%
490
SAC '21 Code Challenge P2 - Littering
SAC Coding Challenge
5p
36.0%
262
SAC '21 Code Challenge P5 - Friends of Friends
SAC Coding Challenge
7p
22.2%
254
SAC '21 Code Challenge P4 - Averaging Averages
SAC Coding Challenge
5p
26.7%
202
SAC '21 Code Challenge P3 - DeMello's Replacement
SAC Coding Challenge
5
19.5%
201
SAC '22 Code Challenge 1 P4 - That Problem
SAC Coding Challenge
7p
19.6%
75
SAC '22 Code Challenge 1 P5 - That Wall
SAC Coding Challenge
12
26.9%
31
SAC '22 Code Challenge 1 P1 - That Teacher
SAC Coding Challenge
3
69.0%
597
SAC '22 Code Challenge 1 P3 - That Pool
SAC Coding Challenge
7p
15.9%
81
SAC '22 Code Challenge 1 P2 - That Circle
SAC Coding Challenge
3
48.3%
247
SAC '22 Code Challenge 2 P5 - Even Colouring
SAC Coding Challenge
10p
35.1%
75
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
32.5%
94
SAC '22 Code Challenge 3 P5 - Chat Corrections
SAC Coding Challenge
12p
15.8%
42
SAC '22 Code Challenge 3 P4 - Finding Friends
SAC Coding Challenge
15p
23.8%
64
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