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Random
Hot problems
CCC '19 S2 - Pretty Average Primes
Problem
Category
Points
AC %
▴
Users
COCI '17 Contest 5 #2 Spirale
COCI
7p
33.8%
169
COCI '17 Contest 5 #3 Birokracija
COCI
12p
52.3%
28
COCI '17 Contest 5 #4 Karte
COCI
15p
50.0%
15
COCI '17 Contest 5 #5 Pictionary
COCI
17p
44.0%
19
COCI '17 Contest 5 #6 Planinarenje
COCI
20p
29.4%
5
COCI '17 Contest 6 #1 Davor
COCI
5
52.8%
27
COCI '17 Contest 6 #2 Alkemija
COCI
10p
8.3%
32
COCI '17 Contest 6 #3 Mate
COCI
12p
17.2%
18
COCI '17 Contest 6 #4 Cover
COCI
15
38.1%
39
COCI '17 Contest 6 #5 Kotrljanje
COCI
17p
17.9%
4
COCI '17 Contest 6 #6 Vrtić
COCI
25p
4.0%
2
COCI '17 Contest 7 #2 Timovi
COCI
7p
40.8%
25
COCI '17 Contest 7 #3 Go
COCI
15p
22.7%
13
COCI '17 Contest 7 #5 Dostavljač
COCI
15
35.8%
20
COCI '17 Contest 7 #6 Priglavci
COCI
20p
31.3%
5
Jack Needs Help
Uncategorized
10p
32.0%
20
Fast Search
Uncategorized
15p
26.6%
104
Tropical Bananas
Uncategorized
10p
43.5%
51
JOI '20 Spring Camp Day 1 P3 - Sweeping
JOI
25p
18.2%
2
JOI '20 Spring Camp Day 2 P2 - Making Friends on Joitter is Fun
JOI
30p
10.3%
6
JOI '20 Spring Camp Day 2 P3 - Ruins 3
JOI
40p
33.3%
2
Another Contest 6 Problem 10 - Putting the Pieces Together
ACC
0p
11.4%
14
William and Summation
Uncategorized
7p
27.1%
58
Returning Home
Uncategorized
10
23.2%
79
JOI '20 Spring Camp Day 3 P1 - Constellation 3
JOI
30p
35.7%
5
JOI '20 Spring Camp Day 3 P2 - Harvest
JOI
35p
27.3%
5
Another Contest 6 Problem 11 - Infinite Corridor Simulator
ACC
0p
1.9%
5
NOI Winter Camp '09 P1 - A Shortest Path Problem
China NOI
40p
50.4%
6
JOI '20 Spring Camp Day 4 P1 - Capital City
JOI
20
47.1%
13
Calendar Contest Problem 3 — Classical Maya
Seasonal
10
12.9%
9
Tree Paths
Uncategorized
12p
46.3%
9
Another Contest 6 Problem 13 - Boolean (Warmup)
ACC
0p
22.3%
148
Another Contest 6 Problem 14 - Boolean (Easy)
ACC
0p
17.9%
110
Another Contest 6 Problem 15 - Boolean (Medium)
ACC
0p
16.1%
86
Another Contest 6 Problem 16 - Boolean (Hard)
ACC
0p
11.9%
71
Another Contest 6 Problem 17 - Boolean (Lunatic)
ACC
0p
5.8%
72
Vending Machine
Uncategorized
10p
40.9%
72
Multiplication Madness
Uncategorized
7p
30.8%
54
Riddle Troll
Uncategorized
10
27.3%
17
DMOPC '20 Contest 5 P6 - Top Row (Offline Version)
DMOPC
30p
22.2%
2
Word Counting
Uncategorized
10
10.2%
9
COI '20 #1 Autobahn
COCI
15p
11.4%
28
COI '20 #2 Cigle
COCI
20p
17.1%
20
COI '20 #3 Izvanzemaljci
COCI
25p
0.9%
1
COI '20 #4 MalnaRISC
COCI
20p
2.9%
8
Subarray Search
Uncategorized
7
26.4%
32
Special Relativity
Uncategorized
10p
8.0%
25
CCO '21 P1 - Swap Swap Sort
CCO
17p
16.8%
152
CCO '21 P2 - Weird Numeral System
CCO
17p
12.1%
87
CCO '21 P3 - Through Another Maze Darkly
CCO
25p
20.5%
49
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