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Random
Hot problems
CCC '19 S2 - Pretty Average Primes
Problem
Category
Points
AC %
▴
Users
CCO '21 P4 - Travelling Merchant
CCO
25p
19.0%
54
CCO '21 P5 - Bread First Search
CCO
20p
23.0%
63
CCO '21 P6 - Loop Town
CCO
50p
4.7%
13
QCC P3 - Cohorts
Uncategorized
10p
37.0%
47
Monkey Bread
Uncategorized
7
27.3%
24
Calendar Contest Problem 2 — Day of the Week
Seasonal
10
5.7%
9
Calendar Contest Problem 1 — Sexagenary Cycle
Seasonal
5
32.8%
68
Calendar Contest Problem 4 — Savvyday 29 Oatmeal 94
Seasonal
10
1.0%
3
Calendar Contest Problem 5 — Reign of Terror
Uncategorized
15
3.3%
2
Calendar Contest Problem 6 — Ming Dynasty
Seasonal
25
3.5%
2
Moses Needs Help
Uncategorized
12p
16.8%
13
Bob Hates Triangles
Uncategorized
7
48.7%
85
A Block Game
Uncategorized
3
40.2%
101
Bob's Farm
Uncategorized
20p
31.7%
8
Fizz Coke
Uncategorized
7p
28.0%
50
NOI '15 P1 - Automated Program Analyzer
China NOI
12p
18.5%
97
NOI '15 P3 - Sushi Dinner
China NOI
25p
12.5%
22
Monkey Cards
Uncategorized
12
30.4%
27
An Animal Contest 3 P8 - Monkey Retirement
AAC
25p
3.2%
8
IOI '21 P1 - Distributing Candies
IOI
30p
13.4%
29
Matchings
POI
30p
15.6%
3
IOI '21 P2 - Keys
IOI
25p
10.9%
14
IOI '21 P3 - Fountain Parks
IOI
30p
4.8%
7
IOI '21 P4 - Mutating DNA
IOI
12p
29.7%
73
IOI '21 P5 - Dungeons Game
IOI
30p
8.1%
9
IOI '21 P6 - Bit Shift Registers
IOI
30p
13.8%
8
NOI '15 P4 - Homeric Epics
China NOI
25p
25.8%
24
NOI '15 P5 - Cocktail Party
China NOI
25p
42.1%
13
NOI '15 P6 - Farm
China NOI
25p
6.1%
6
Spring Coding Bowl '22 P4 - Circle Game
Uncategorized
15p
6.7%
10
Spring Coding Bowl '22 P5 - Temple Placement
Uncategorized
15p
13.8%
7
NOI '20 P1 - Delicacy
China NOI
25p
12.6%
30
NOI '20 P2 - Destiny
China NOI
25p
16.4%
12
NOI '20 P3 - Tears
China NOI
40p
9.0%
8
Still Too Simple
Seasonal
10
18.7%
43
Persuasion
Uncategorized
12
29.7%
24
An Animal Contest 3 P7 - Monkey Lasers (Up Version)
AAC
25p
23.3%
9
NOI '20 P4 - Dish
China NOI
20p
7.6%
19
NOI '20 P5 - Surreal
China NOI
17p
10.2%
17
NOI '20 P6 - Road
China NOI
45p
3.3%
1
Prefix Digits
Uncategorized
7
15.1%
62
K-th Minimum Number
Uncategorized
17
45.5%
32
Dynamic Sum
Uncategorized
15
14.6%
16
NOI '21 P1 - Light Heavy Edges
China NOI
25p
8.7%
25
NOI '21 P2 - Intersecting Paths
China NOI
25p
22.9%
17
NOI '21 P3 - Celebration
China NOI
25p
10.0%
20
NOI '21 P4 - Quantum Communication
China NOI
25p
9.4%
22
NOI '21 P5 - The Locked Box
China NOI
25p
11.8%
9
NOI '21 P6 - Robot Game
China NOI
25p
22.4%
4
Factorial Calculator
TLE
7p
18.3%
79
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