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Random
Hot problems
CCC '16 S4 - Combining Riceballs
Appleby Contest '19 P5 - Matrix Operation
Cheerio Contest 1 S2 - School Expansion
WC '96 P6 - Bases Multiplication
CCCHK '15 J4 - Where to build my house?
DMOPC '23 Contest 1 P1 - Peak Grid
Max's Anger Contest Series 2 P3 - Array Anger
Problem
Category
Points
AC %
▴
Users
Athena on Zanzibar Island
Olympiads School
12p
6.7%
31
GlobeX Cup '19 S1 - Planet Classification
Uncategorized
5p
33.7%
149
DMOPC '19 Contest 3 P6 - TST
DMOPC
25
25.0%
14
GlobeX Cup '19 J4 - Winni's Lonely Card Game
Uncategorized
5p
18.5%
62
GlobeX Cup '19 J5 - Aliens
Uncategorized
15
12.6%
19
Wesley++
Seasonal
15p
15.2%
10
Art Academy III: Sabotage
Uncategorized
20p
11.0%
7
JSB '19 - P1
CTF
5
8.4%
27
JSB '19 - P2
CTF
7
26.7%
16
JSB '19 - P3
CTF
7
38.8%
15
JSB '19 - P4
CTF
17
23.0%
9
JSB '19 - P5
CTF
15
19.2%
9
Longest Balanced Subsequence
Uncategorized
15p
30.3%
28
Ray's Tricky Connectivity
Uncategorized
10p
22.2%
76
A Simple Game
Uncategorized
7p
30.6%
84
Total Destruction
Uncategorized
10p
44.8%
91
A Greedy Problem
Uncategorized
5p
28.6%
170
DMOPC '19 Contest 4 P5 - Financial Trouble
DMOPC
17p
11.4%
40
Educational DP Contest AtCoder Y - Grid 2
Uncategorized
17
31.9%
103
Educational DP Contest AtCoder Z - Frog 3
Uncategorized
20
38.4%
160
UTS Open '21 P5 - State Taxes
Uncategorized
17p
13.2%
42
DMOPC '19 Contest 4 P4 - Math Class
DMOPC
15p
3.4%
16
Wesley's Anger Contest 3 Bonus Problem - Game of Death
WAC
7p
38.1%
13
Strict Evaluation
Data Structure Tests
17
22.2%
143
Road Redirection
Uncategorized
17
28.0%
21
Art Academy 0: Prologue
Uncategorized
3p
35.7%
284
Salsifa Hall
Uncategorized
7
51.6%
9
Link Cut Tree
Uncategorized
50
0.6%
5
Willie's Fan Club
Uncategorized
7
38.3%
41
Mock CCC '20 S4 - Valentine's Day Shopping
Mock CCC
20p
7.9%
15
Mock CCC '20 S3 - SAM I Am
Mock CCC
10p
12.7%
72
Mock CCC '20 S1 - War
Mock CCC
3p
29.7%
478
Mock CCC '20 Contest 2 S1 - Arithmetic Hybercube
Mock CCC
3p
53.9%
403
Mock CCC '20 Contest 2 S2 - 4D BBST on a DP
Mock CCC
5p
27.6%
281
Mock CCC '20 Contest 2 S3 - Tree Programming
Mock CCC
10p
15.5%
79
Mock CCC '20 Contest 2 S5 - Sticks
Mock CCC
20p
2.3%
4
Art Academy VI: The Last Stand
Uncategorized
12p
23.0%
27
Bitmask Magic
Uncategorized
15p
30.0%
22
DMOPC '19 Contest 7 P6 - Bob Equilibrium
DMOPC
30p
18.5%
51
Angie and Functions (Hard)
Uncategorized
30
2.1%
1
PIB '20 P7 - Karnaugh Maps
Uncategorized
15p
8.5%
16
PIB '20 P6 - Rotational Top Trees
Uncategorized
20p
35.3%
15
PIB '20 P3 - Rulebreaker
Uncategorized
7p
29.5%
55
CCC '20 J1 - Dog Treats
CCC
3
56.1%
4017
CCC '20 J2 - Epidemiology
CCC
3
27.1%
3705
CCC '20 J3 - Art
CCC
3p
42.9%
2367
CCC '20 J4 - Cyclic Shifts
CCC
5p
45.7%
2290
CCC '20 S1 - Surmising a Sprinter's Speed
CCC
5p
42.8%
2047
CCC '20 S2 - Escape Room
CCC
10p
12.8%
1694
CCC '20 S5 - Josh's Double Bacon Deluxe
CCC
17p
29.6%
258
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