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Random
Hot problems
COCI '14 Contest 6 #4 Kratki
CCO '23 P1 - Binaria
ACSL '09 Practice P4 - Rank
TLE '16 Contest 7 P5 - Shortest Path Faster Algorithm
Educational DP Contest AtCoder B - Frog 2
CCO '23 P2 - Real Mountains
IOI '00 P1 - Palindrome
Problem
Category
Points ▾
AC %
Users
DWITE '08 R4 #4 - Shortest path around v2
DWITE
7
47.0%
157
DWITE '08 R4 #3 - Secret party
DWITE
7
37.9%
54
DMOPC '17 Contest 1 P3 - Hitchhiking Fun
DMOPC
7p
23.1%
335
ICPC PACNW 2016 A - Alphabet
ICPC
7
55.9%
310
ICPC PACNW 2016 C - Cameras
ICPC
7
35.3%
236
ICPC PACNW 2016 H - Paint
ICPC
7
23.9%
144
CCO '08 P5 - Candy
CCO
7p
18.2%
235
ICHB Selection Contest '17 Problem 2 - Black Star's Visit
Uncategorized
7p
8.5%
26
DMOPC '17 Contest 3 P2 - Towers of Hanoi
DMOPC
7p
18.2%
82
Summer Institute '17 Contest 1 P7 - Grand Theft Otto
SIUCF
7
59.2%
47
Summer Institute '17 Contest 1 P9 - Safe Square
SIUCF
7
57.7%
139
COCI '17 Contest 4 #3 Automobil
COCI
7p
10.5%
22
TLE '17 Contest 4 P3 - Fax's Christmas Dish
TLE
7p
26.0%
139
Valentine's Day '18 J4 & S1 - Carol's Cute Cactus
Mock CCC
7
36.1%
191
New Year's '18 P4 - The Polar Express
Seasonal
7p
24.9%
161
TLE '17 Contest 5 P3 - Willson and Factorization
TLE
7p
36.8%
54
Valentine's Day '18 J5 & S2 - Ctudor's Cute Orchids
Mock CCC
7
27.7%
159
Mock CCC '18 Contest 1 J5/S3 - A Simulation Problem
Mock CCC
7p
21.6%
122
Mock CCC '18 Contest 2 J3/S1 - An Array Problem
Mock CCC
7p
16.1%
371
Mock CCC '18 Contest 2 J4/S2 - A Geometry Problem
Mock CCC
7p
17.5%
122
Valentine's Day '18 S4 - Coastal California Cities
Mock CCC
7p
45.6%
43
Mock CCC '18 Contest 5 J5/S3 - Directed Graph Connectivity
Mock CCC
7p
40.9%
487
DMOPC '17 Contest 4 P4 - Cops and Robbers
DMOPC
7p
20.9%
208
CTU Open Contest 2017 - Pond Cascade
ICPC
7
37.8%
6
CTU Open Contest 2017 - Chessboard Dancing
ICPC
7
75.0%
6
CTU Open Contest 2017 - Dark Ride With Monsters
ICPC
7
15.1%
9
CTU Open Contest 2017 - Go Northwest!
ICPC
7
46.2%
9
CCC '18 J5 - Choose your own path
CCC
7p
24.1%
1608
DMOPC '17 Contest 4 P2 - A Heavy Light Decomposition Problem
DMOPC
7p
12.3%
119
DMOPC '17 Contest 4 P3 - Third Place
DMOPC
7p
16.8%
140
TLE '17 Contest 6 P3 - Spencer and Contest
TLE
7p
16.0%
63
DMOPC '17 Contest 5 P3 - Mimi and Primes
DMOPC
7p
13.5%
421
TLE '17 Contest 7 P3 - Countless Calculator Computations
TLE
7p
17.4%
142
List Minimum (Harder)
Uncategorized
7
0.2%
5
ECOO '18 R1 P3 - Missing Art
ECOO
7p
43.5%
93
ECOO '18 R1 P4 - Fibonacci Spiral
ECOO
7p
36.6%
65
DMPG '18 B6 - House of Cards
DMOPC
7p
41.1%
196
DMPG '18 B5 - Mimi and Substrings
DMOPC
7p
29.7%
166
DMPG '18 B3 - Shimpossible
DMOPC
7p
17.2%
63
DMPG '18 S2 - Mimi and K-uteness
DMOPC
7p
26.4%
181
DMPG '18 S3 - Black and White IV
DMOPC
7p
12.7%
45
TLE '17 Contest 8 P1 - Artificial Intelligence
TLE
7p
9.1%
58
ECOO '18 R2 P1 - Artificial Photosynthesystem
ECOO
7p
39.1%
36
CCC '01 S2 - Spirals (Exact Version)
CCC
7
8.3%
105
Double Doors Regional P3 - Tudor and the Pusheens
Uncategorized
7
14.7%
368
Bank Notes
Uncategorized
7
17.0%
143
UTS Open '18 P3 - Restaurants
Uncategorized
7p
32.4%
241
Triway Cup '18 Summer A - Arranged Marriage
Seasonal
7
9.5%
52
Triway Cup '18 Summer B - Beautiful Water Pearl
Seasonal
7
25.5%
196
Triway Cup '18 Summer E - Eyes of Void
Seasonal
7
40.4%
46
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