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Random
Hot problems
CCC '24 S2 - Heavy-Light Composition
String Finding
CCO '07 P2 - Snowflakes
APIO '09 P3 - The Great ATM Robbery
CCC '24 J4 - Troublesome Keys
Problem
Category
Points
AC %
Users ▾
Back To School '16: Cherry Tree
Seasonal
12p
42.0%
315
CCC '01 S5 - Post's Correspondence Problem
CCC
10
28.9%
315
CCO '99 P2 - Common Words
CCO
10
12.3%
315
DMOPC '16 Contest 4 P5 - Migrant Mascot
DMOPC
10p
21.6%
315
Appleby Contest '19 P1 - Darcy's Debilitating Demands
Uncategorized
3p
17.6%
315
DMOPC '15 Contest 6 P3 - Harvest
DMOPC
7p
14.1%
314
DMOPC '17 Contest 5 P0 - Mimi and Pizza
DMOPC
3
39.1%
314
Sleigh Ride
Uncategorized
10
27.0%
314
UACC 1 P1 - Bench Press Bob
Uncategorized
3
52.6%
314
DMOPC '15 Contest 6 P5 - A Classic Problem
DMOPC
10
29.6%
313
DMOPC '21 Contest 5 P2 - Permutations & Primes
DMOPC
7
32.2%
313
DMOPC '22 Contest 2 P1 - DMOPC Crisis
DMOPC
5p
15.5%
313
The Contest Contest 1 P1 - A Typical Codeforces Problem
Uncategorized
5
23.5%
313
VM7WC '16 #4 Silver - Tests or Test Cases?
VM7WC
5
36.9%
312
MWC '15 #1 P1: Playlist Panic
MWC
5
29.6%
312
ICPC PACNW 2016 A - Alphabet
ICPC
7
56.0%
312
DMOPC '18 Contest 1 P1 - Sorting
DMOPC
5p
15.0%
312
Educational DP Contest AtCoder P - Independent Set
Uncategorized
12
35.9%
312
DMOPC '19 Contest 2 P0 - Roller Coaster
DMOPC
3
61.8%
312
An Animal Contest 4 P1 - Dasher's Digits
AAC
5p
21.2%
312
Yet Another Contest 6 P1 - No More Separation
YAC
5p
32.7%
312
IOI '13 P4 - Cave
IOI
10p
18.6%
311
VM7WC '16 #2 Gold - GGG
VM7WC
15
18.2%
311
CCC '22 S4 - Good Triplets
CCC
15p
28.5%
310
DMOPC '15 Contest 3 P2 - Cheesecake Distribution
DMOPC
5p
21.9%
309
Alphabet Score
Uncategorized
3p
48.7%
309
Avocado Trees!
Uncategorized
5
32.4%
308
ECOO '15 R2 P3 - Lucas' Other Tower
ECOO
10p
46.7%
307
DMOPC '15 Contest 3 P3 - Dimethylbenzene
DMOPC
7p
30.2%
307
DMOPC '18 Contest 2 P3 - Thanksgiving Feast
DMOPC
10p
41.4%
307
PIB '20 P1 - Marcus and Head Bonks
Uncategorized
3p
69.2%
307
PEG Test '14 - Earth
Uncategorized
3
36.3%
307
An Animal Contest 6 P1 - Workout Routine
AAC
5p
15.9%
307
DMOPC '13 Contest 3 P1 - Sharing is Caring
DMOPC
5p
34.9%
306
Counting Subsequences
Uncategorized
10
21.5%
305
MEC '16 P3 - Getting Good at Programming
Seasonal
10p
29.1%
304
Fibonacci Sequence (Harder)
Uncategorized
17
19.6%
304
WC '17 Contest 2 J1 - The Rings of Power
Woburn Challenge
3
67.1%
304
VM7WC '15 #2 Gold - Uniting the Earth Empire
VM7WC
12
20.3%
303
COCI '08 Contest 2 #2 Reseto
COCI
5
45.3%
303
COCI '07 Contest 3 #2 Oktalni
COCI
3
42.7%
302
DMOPC '14 Contest 5 P3 - Brotherly Sequence
DMOPC
5p
20.1%
301
ECOO '16 R1 P1 - Pass or Fail
ECOO
5p
26.2%
301
COCI '06 Contest 4 #4 Zbrka
COCI
12p
26.8%
301
ACM U of T Tryouts C2 A - The Super Mario Blues
ICPC
5
36.1%
301
Max's Anger Contest Series 1 P1 - Hunger Bar
Seasonal
3p
59.8%
301
CCC '24 J4 - Troublesome Keys
CCC
5p
22.1%
301
DWITE '08 R2 #2 - My favourite digit
DWITE
3
59.2%
300
Palindromic Integer Partition
Uncategorized
5p
34.1%
300
The DMOJ Driveway
Uncategorized
5
29.2%
300
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