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Random
Hot problems
IOI '04 P4 - Phidias
COCI '14 Contest 5 #3 Traktor
WC '17 Contest 3 J3 - Uncrackable
CCCHK '15 J3 - Queens can't attack me!
Knapsack 4
DMOPC '18 Contest 1 P2 - Sorting
Educational DP Contest AtCoder C - Vacation
Problem
Category
Points
AC %
Users ▴
COCI '22 Contest 3 #1 Estimathon
COCI
5p
28.0%
175
CCOQR '16 - Data Structure
CCC
15p
22.0%
176
HopScotch II
Classics
12p
24.1%
176
GFSSOC '15 Fall Practice P5 - Bruno and Pumpkins
GFSSOC
7p
28.5%
177
COCI '15 Contest 2 #4 Savez
COCI
15p
24.4%
177
TLE '16 Contest 2 P1 - In Debt
TLE
3p
30.4%
177
TLE '16 Contest 4 P4 - Christmas Tree Building
TLE
15p
14.5%
177
DMPG '17 B1 - Whale and Soul
DMOPC
3
15.7%
177
CCO '17 P4 - Rainfall Storage
CCO
20p
36.2%
177
GlobeX Cup '18 J5 - Errands
Uncategorized
10p
23.6%
177
Mock CCC '22 2 S1 - Kaguya Wants to Let Ishigami Pass
Mock CCC
5p
25.5%
177
Max's Anger Contest Series 2 P1 - Directed Anger
Seasonal
3
57.3%
177
ECOO '16 R1 P2 - Spindie
ECOO
7p
24.2%
178
COCI '07 Contest 3 #6 Redoks
COCI
17p
33.1%
178
TLE '17 Contest 2 P1 - Cadadr
TLE
3p
49.1%
178
UHCC1 P1 - PONG!
Uncategorized
3
34.0%
178
DMOPC '14 Exam Time P5 - Happy Teachers
DMOPC
15p
21.9%
179
CCC '96 S2 - Divisibility by 11
CCC
7
6.8%
179
COCI '08 Regional #6 Cvjetici
COCI
12
46.4%
179
IOI '18 P1 - Combo
IOI
15p
15.0%
179
COCI '13 Contest 2 #2 Misa
COCI
5p
39.4%
179
DMOPC '21 Contest 9 P1 - Board Numbers
DMOPC
7p
17.5%
179
DMOPC '22 Contest 4 P1 - Alone Time
DMOPC
5p
14.2%
179
TSOC '15 Contest 1 #1 - Molecular or Non-Molecular?
TSOC
3p
37.8%
180
COCI '14 Contest 4 #1 Cesta
COCI
5p
31.3%
180
CCO '07 P6 - Road Construction
CCO
20p
30.3%
180
New Year's '16 P1 - Late Christmas Shopping
Seasonal
3p
30.3%
180
PEG Test '11 - Cyclopian Suits
Uncategorized
3
24.7%
180
DMOPC '20 Contest 4 P3 - Roving Roombas
DMOPC
12p
19.7%
180
CCO '07 P1 - Cows
CCO
10
32.3%
181
DWITE '09 R6 #2 - Round to power of two
DWITE
3
50.3%
181
DMPG '18 S2 - Mimi and K-uteness
DMOPC
7p
26.4%
181
WC '15 Contest 4 J1 - Telling Time
Woburn Challenge
3
49.8%
181
DMOPC '14 Contest 6 P4 - Bus Jam
DMOPC
10p
47.2%
182
WC '01 P3 - Back to the Future
Woburn Challenge
5
61.6%
182
April Fools' Day Contest 1 P5 - Definition
Uncategorized
0
40.5%
182
Lexicographically Least Substring (Hard)
Uncategorized
15
11.3%
183
Breaking the Friend Chain
Uncategorized
7
28.7%
183
IOI '00 P5 - Post Office
IOI
15p
40.6%
183
DMOPC '14 Contest 4 P2 - Redirection
DMOPC
3p
44.3%
184
CCO '10 P2 - Tree Pruning
CCO
15
29.6%
184
MWC '15 #1 P3: Dolls
MWC
3
25.1%
184
ECOO '16 R3 P3 - CamelCase
ECOO
10p
25.0%
184
An Animal Contest 2 P3 - Koala Balloons
AAC
12p
15.5%
184
BSSPC '21 S1 - Lakshy and Palindromic Rectangle
Uncategorized
5p
19.8%
184
DMOPC '21 Contest 2 P2 - Scrambling Swaps
DMOPC
7p
23.8%
184
DMOPC '21 Contest 7 P2 - Knitting Scarves
DMOPC
7
24.3%
184
Guess the Sequence
Uncategorized
3p
5.9%
185
MWC '15 #7 P2: Thief in the Night
MWC
5p
38.1%
185
COCI '15 Contest 5 #1 Zamka
COCI
3
49.9%
185
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