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Hot problems
CCC '24 S2 - Heavy-Light Composition
Educational DP Contest AtCoder K - Stones
Educational DP Contest AtCoder I - Coins
IOI '94 P1 - The Triangle
COCI '06 Regional #3 Firefly
CCC '17 J4 - Favourite Times
GFSSOC '15 Winter J5 - Secret Santa
Problem
Category
Points
AC %
Users ▾
Summer Institute '17 Contest 1 P5 - Crazy Math
SIUCF
15
27.8%
62
DMOPC '17 Contest 5 P4 - Intersecting Arcs
DMOPC
17p
20.5%
62
Mock CCC '19 Contest 2 S3 - Tudor Tallies Triangular Totals
Mock CCC
10p
5.4%
62
GlobeX Cup '19 J4 - Winni's Lonely Card Game
Uncategorized
5p
18.5%
62
Art Academy VII: A Mysterious Object
Uncategorized
12p
41.3%
62
Revenge of the Digger
Uncategorized
20p
32.8%
62
WC '02 P2 - Cow-bot
Woburn Challenge
10
21.9%
62
WC '02 P1 - A Planning Session
Woburn Challenge
5
16.7%
62
COCI '16 Contest 5 #1 Tuna
COCI
3p
67.7%
62
COCI '12 Contest 2 #1 Mortadela
COCI
3p
69.6%
62
Prefix Digits
Uncategorized
7
15.1%
62
Yet Another Contest 2 P3 - Maximum Damage
YAC
10p
7.9%
62
Comparing Arrays
Uncategorized
15p
16.9%
62
A Math Contest P8 - Permutation Counting
Uncategorized
12
36.6%
62
WOSS Dual Olympiad 2022 S2: Festive Card Game
Seasonal
7p
19.8%
62
DMOPC '14 Exam Time P6 - Math Homework
DMOPC
15p
24.3%
61
ICPC ECNA 2016 C - The Key to Cryptography
ICPC
7
46.4%
61
CCO '16 P3 - Legends
CCO
30p
9.8%
61
TLE '16 Contest 4 P3 - Cubes
TLE
7p
25.7%
61
MNYC '17: ASCII Art II
Seasonal
5
42.3%
61
TLE '16 Contest 8 P4 - Delivery Service
TLE
17p
9.4%
61
COCI '07 Contest 5 #6 Baza
COCI
25
7.6%
61
COCI '08 Contest 1 #5 Skakavac
COCI
20p
10.3%
61
DWITE '08 R2 #1 - My shiny digital key
DWITE
3
38.5%
61
Back From Summer '19 P3: ASDFGHJKL
Seasonal
10p
8.7%
61
Mock CCC '20 Contest 2 S4 - Rotational Arrays
Mock CCC
10p
11.8%
61
IOI '98 P6 - Polygon
IOI
15
32.0%
61
CCO '03 P1 - BFed
CCO
10
25.4%
61
Appleby Contest '20 P5 - Ridiculous Tree
Uncategorized
15p
22.4%
61
COCI '17 Contest 5 #1 Olivander
COCI
5p
62.9%
61
Canada Day Contest 2021 - 0-1
Seasonal
20p
48.7%
61
An Animal Contest 2 P6 - Koala Transport System
AAC
17p
22.2%
61
MALD Contest 1 P3 - Scratch Cat and Infestation
Uncategorized
7
13.0%
61
Another Contest 9 Problem 2 - Counting Down the Days
ACC
7
6.9%
61
COCI '22 Contest 3 #4 Bomboni
COCI
12p
15.3%
61
UTS Open '15 #5 - Distribution Channel
Uncategorized
20p
6.0%
60
ICPC NAQ 2016 D - Brackets
ICPC
15
15.9%
60
Mock CCO '17 Problem 1 - Fast Fuhrer Transform
Mock CCO
10p
25.4%
60
Mock CCC '18 Contest 2 S4 - A Tree Problem
Mock CCC
12p
16.7%
60
DMOPC '18 Contest 6 P5 - Quadrat Sampling
DMOPC
20p
15.2%
60
APIO '07 P3 - Zoo
APIO
20p
32.3%
60
OCC '19 S1 - Floor Planning
Uncategorized
3p
32.6%
60
CCO '20 P5 - Interval Collection
CCO
25p
16.0%
60
Skyscrapers
Uncategorized
15p
18.3%
60
IOI '13 P3 - Wombats (Standard I/O)
IOI
40p
9.5%
60
DMOPC '20 Contest 3 P3 - A Ring of Buckets
DMOPC
12p
7.0%
60
NOIP '21 P2 - Sequence
China NOI
20p
28.8%
60
Max's Anger Contest Series 2 P5 - Job Anger
Seasonal
12p
27.3%
60
COCI '23 Contest 2 #1 Pahuljice
COCI
5p
43.2%
60
Mine and Tree
Seasonal
30p
22.7%
59
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