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Hot problems
CCC '21 J3 - Secret Instructions
Problem
Category
Points
AC % ▴
Users
Baltic OI '16 P5 - Maze
Baltic OI
25p
2.3%
8
IOI '19 P4 - Broken Line
IOI
35p
2.3%
4
HCI '16 - Redstone Repeaters
Uncategorized
10p
2.3%
9
Mock CCC '19 Contest 1 S5 - Pusheen Eats Even More Tuna Sashimi and Tuna Nigiri
Mock CCC
20
2.3%
9
TLE 2018-19 P5 - Pure Functional Programming
Seasonal
40p
2.3%
4
Mock CCC '20 Contest 2 S5 - Sticks
Mock CCC
20p
2.3%
4
Overflow
Uncategorized
30p
2.4%
7
DMOPC '18 Contest 2 P6 - Standing Ovation (Hard Version)
DMOPC
35
2.4%
1
NOI '22 P5 - Bubble Sort
China NOI
35p
2.4%
1
NOI '05 P5 - Little H's Party
China NOI
30p
2.4%
3
Yet Another Contest 3 P3 - Topography
YAC
15p
2.4%
17
Fast Factorial Calculator 3
Uncategorized
40
2.5%
8
Yet Another Contest 5 P4 - Nils++
YAC
17p
2.5%
7
DMOPC '20 Contest 3 P4 - Bob and Typography
DMOPC
15p
2.5%
9
IOI '20 P5 - Counting Mushrooms
IOI
35p
2.5%
3
NOI '19 P6 - Explore
China NOI
25p
2.6%
10
NOI '10 P6 - Happily Growing
China NOI
50p
2.6%
2
MMM '14 G - Campfire Cooking
Uncategorized
40p
2.7%
3
IOI '13 P2 - Art Class (Standard I/O)
IOI
20p
2.7%
90
TLE '16 Contest 7 P5 - Shortest Path Faster Algorithm
TLE
20p
2.8%
10
Wesley's Anger Contest 5 Problem 7 - Acorn Delivery System
WAC
30p
2.8%
7
Mock CCC '20 Contest 1 J5 - A Prime Problem
Mock CCC
12p
2.8%
20
NOI '22 Multi-Provincial Team Selection P3 - Community
China NOI
40p
2.9%
1
COI '20 #4 MalnaRISC
COCI
20p
2.9%
8
IOI '12 P1 - Pebbling Odometer
IOI
30p
2.9%
4
WC '02 P9 - A Nerd's Preparation
Woburn Challenge
20p
2.9%
3
Ancient Castle Ruins
Uncategorized
25p
2.9%
1
Mock CCC '24 Contest 1 S3 - Optimal Split Point
Mock CCC
10p
3.0%
24
April Fools' Day Contest 1 P6 - April Fools' Day (BOJ Edition)
Uncategorized
0
3.0%
142
CCO Preparation Test 5 P4 - Toys
Mock CCO
15p
3.1%
2
IOI '23 P2 - Longest Trip
IOI
25p
3.1%
13
IOI '22 P6 - Thousands Islands
IOI
30p
3.1%
6
DMOPC '20 Contest 5 P6 - Top Row
DMOPC
35p
3.1%
5
Piggy
Seasonal
7p
3.1%
286
WC '02 Suicidal P5 - The Mines of Moria
Woburn Challenge
25
3.1%
1
IOI '04 P3 - Polygon
IOI
20p
3.1%
1
2048
Uncategorized
15
3.1%
89
An Animal Contest 3 P8 - Monkey Retirement
AAC
25p
3.2%
8
Maximum Product of K Integers
Uncategorized
25
3.2%
2
COCI '10 Contest 6 #6 Voda
COCI
20p
3.2%
1
April Fools' Day Contest 1 P7 - Half-Plane Intersection
Uncategorized
0
3.2%
71
Yet Another Contest 8 P4 - Fluke 2
YAC
15p
3.3%
43
Calendar Contest Problem 5 — Reign of Terror
Uncategorized
15
3.3%
2
NOI '20 P6 - Road
China NOI
45p
3.3%
1
String Test
Data Structure Tests
50
3.4%
2
DMOPC '19 Contest 4 P4 - Math Class
DMOPC
15p
3.4%
16
Geometric Sequence
Uncategorized
10
3.4%
8
Catching Their Flights
Uncategorized
0p
3.4%
11
The Contest Contest 1 P4 - A Typical YAC Problem
Uncategorized
25p
3.4%
7
IOI '15 P3 - Teams (Standard I/O)
IOI
35p
3.4%
37
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