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Hot problems
DWITE '10 R3 #3 - Dominos Tiling
A Math Contest P5 - Good Arrays
Counting Subsequences
CCC '11 S1 - English or French?
Problem
Category
Points
AC % ▾
Users
CCC '21 J4 - Arranging Books
CCC
7p
19.6%
1324
COCI '20 Contest 2 #3 Euklid
COCI
17p
19.6%
24
Largest Permutation
Uncategorized
7p
19.6%
262
Fibonacci Sequence (Harder)
Uncategorized
17
19.5%
304
COCI '14 Contest 1 #4 Mafija
COCI
15p
19.5%
114
SAC '21 Code Challenge P3 - DeMello's Replacement
SAC Coding Challenge
5
19.5%
201
COI '07 #1 Glasnici
COCI
12
19.5%
67
Back From Summer '17 P3: Basketball Dodgeball
Seasonal
7
19.5%
80
NOI '11 P5 - NOI Carnival
China NOI
25p
19.5%
16
Yet Another Contest 4 P5 - Signpost
YAC
20p
19.5%
25
GFSSOC '17 S2 - Ace is Base
GFSSOC
7p
19.5%
39
ACM U of T Tryouts C2 C - Homemade Asteroids
ICPC
10
19.5%
27
CCC '05 S5 - Pinball Ranking
CCC
12p
19.5%
741
CCC '23 S4 - Minimum Cost Roads
CCC
15p
19.5%
257
CEOI '16 P4 - Match
CEOI
15p
19.4%
22
COCI '21 Contest 5 #5 Usmjeravanje
COCI
20p
19.4%
14
CTU Open Contest 2018 - Rullete
ICPC
10
19.4%
10
CCO '20 P4 - Travelling Salesperson
CCO
25p
19.4%
92
RGPC '17 P2 - Cubes are Life
Uncategorized
7p
19.4%
147
Graph Contest 1 P1 - Counting Paths
Uncategorized
10
19.4%
95
IOI '11 P3 - Rice Hub (Standard I/O)
IOI
15p
19.4%
496
Another Contest 8 Problem 3 - Replay Double Ignition
ACC
10
19.4%
131
BSSPC '22 P5 - Derrick and Orz Trees
Uncategorized
7p
19.4%
140
Facebook Hacker Cup '17 Qualifying Round P3 - Fighting the Zombie
FHC
10p
19.4%
29
NOI '13 P5 - Calligrapher
China NOI
30p
19.4%
6
WCIPEG 2018 ECOO Qualifier P3 - Shattering Shadows 2
ECOO
7p
19.4%
10
CCO '22 P4 - Bi-ing Lottery Treekets
CCO
20p
19.4%
31
COCI '12 Contest 5 #1 Ljestvica
COCI
5p
19.3%
984
Mock CCC '18 Contest 2 J5/S3 - A Coloring Problem
Mock CCC
10p
19.3%
56
DMPG '16 G6 - SAO Queries
DMOPC
25p
19.3%
40
CCO '13 P5 - Transforming Comets
CCO
15p
19.3%
74
DMOPC '19 Contest 5 P2 - Charlie's Crazy Conquest
DMOPC
5
19.3%
444
COCI '16 Contest 2 #5 Zamjene
COCI
15p
19.3%
9
EGOI '21 P1 - Zeros
EGOI
7p
19.3%
74
WC '15 Finals S3 - Driving Range
Woburn Challenge
15p
19.3%
13
Waterloo 2022 Fall B - Lightbulbs
Waterloo Local
15
19.3%
15
Baltic OI '14 P2 - Three Friends
Baltic OI
7p
19.3%
45
Valentine's Day '19 S2 - Ctudor's Cute Cacti
Uncategorized
7p
19.3%
152
COCI '13 Contest 5 #3 Eksplozjia
COCI
10p
19.3%
134
WC '16 Contest 4 S1 - Parking Duty
Woburn Challenge
10p
19.3%
25
DMOPC '22 Contest 5 P2 - Absolutely Even
DMOPC
7p
19.3%
164
DMOPC '16 Contest 4 P3 - Carnival Phantasm
DMOPC
10
19.2%
239
Baltic OI '07 P4 - Building a Fence
Baltic OI
12p
19.2%
5
UHCC1 P4 - Manhattan Distance
Uncategorized
7
19.2%
42
WC '18 Contest 4 S3 - Dance Royale
Woburn Challenge
15p
19.2%
32
VPEX P4 - Etopika
Uncategorized
12p
19.2%
139
An Animal Contest 7 P4 - Squirrel Shenanigans
AAC
20
19.2%
17
SMAC 08/09 (Oct) #2 - Digging for Gold
Uncategorized
10
19.2%
53
CCO '18 P5 - Boring Lectures
CCO
20p
19.2%
127
CCC '17 S5 - RMT
CCC
20p
19.2%
245
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