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2023 Post World Finals Online ICPC Challenge powered by Huawei
43:04:05
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combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
math
matrices
meet-in-the-middle
number theory
probabilities
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
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Custom test
Problems
#
Name
207D7
The Beaver's Problem - 3
1600
x95
207D5
The Beaver's Problem - 3
1600
x135
1115G3
Palindrome checker oracle
*special problem
1600
x224
1115U2
Chessboard unitary
*special problem
1600
x227
207B1
Military Trainings
1600
x257
72H
Reverse It!
*special problem
,
implementation
1600
x258
100E
Lamps in a Line
*special problem
,
math
1600
x265
130F
Prime factorization
*special problem
1600
x272
207A1
Beaver's Calculator 1.0
greedy
1600
x273
130E
Tribonacci numbers
*special problem
1600
x291
1115G2
OR oracle
*special problem
1600
x305
683C
Symmetric Difference
*special problem
1600
x314
683B
The Teacher of Physical Education
*special problem
1600
x316
188G
Array Sorting
*special problem
,
implementation
1600
x324
1002D3
Oracle for majority function
1600
x326
64C
Table
*special problem
,
greedy
,
implementation
,
math
1600
x331
649D
Дефрагментация памяти
constructive algorithms
,
greedy
,
implementation
1600
x342
1002B3
Distinguish four 2-qubit states
1600
x405
1002B2
Distinguish GHZ state and W state
1600
x440
530D
Set subtraction
*special problem
1600
x446
178C1
Smart Beaver and Resolving Collisions
1600
x471
1346D
Constructing the Dungeon
*special problem
,
graphs
,
greedy
1600
x476
130H
Balanced brackets
*special problem
1600
x500
530B
String inside out
*special problem
1600
x537
1001E
Distinguish Bell states
*special problem
1600
x551
1910C
Poisonous Swamp
*special problem
,
*special problem
,
implementation
,
implementation
1600
x569
1346C
Spring Cleaning
*special problem
,
greedy
,
sortings
1600
x579
1910B
Security Guard
*special problem
,
greedy
1600
x580
178B2
Greedy Merchants
1600
x640
1431C
Black Friday
*special problem
,
implementation
1600
x692
323A
Black-and-White Cube
combinatorics
,
constructive algorithms
1600
x718
178B1
Greedy Merchants
1600
x723
153A
A + B
*special problem
1600
x759
28A
Bender Problem
implementation
1600
x769
171G
Mysterious numbers - 2
*special problem
1600
x889
926D
Choose Place
1600
x894
125C
Hobbits' Party
constructive algorithms
,
greedy
1600
x899
234E
Champions' League
implementation
1600
x982
57B
Martian Architecture
implementation
1600
x987
40B
Repaintings
math
1600
x1111
753B
Interactive Bulls and Cows (Easy)
brute force
,
constructive algorithms
,
implementation
1600
x1171
32D
Constellation
implementation
1600
x1237
171F
ucyhf
*special problem
,
brute force
,
implementation
,
number theory
1600
x1244
411B
Multi-core Processor
implementation
1600
x1250
774K
Stepan and Vowels
*special problem
,
implementation
,
strings
1600
x1256
139B
Wallpaper
implementation
,
math
1600
x1273
175C
Geometry Horse
greedy
,
implementation
,
sortings
,
two pointers
1600
x1288
73A
The Elder Trolls IV: Oblivon
greedy
,
math
1600
x1296
86A
Reflection
math
1600
x1340
856A
Set Theory
brute force
,
constructive algorithms
1600
x1358
524A
Возможно, вы знаете этих людей?
implementation
1600
x1392
36B
Fractal
implementation
1600
x1417
234G
Practice
constructive algorithms
,
divide and conquer
,
implementation
1600
x1453
291D
Parallel Programming
*special problem
,
greedy
1600
x1467
958E1
Guard Duty (easy)
brute force
,
geometry
,
greedy
,
math
1600
x1469
234D
Cinema
implementation
1600
x1515
316B2
EKG
dfs and similar
,
dp
1600
x1567
95A
Hockey
implementation
,
strings
1600
x1642
291C
Network Mask
*special problem
,
bitmasks
,
brute force
,
implementation
1600
x1664
910B
Door Frames
greedy
,
implementation
1600
x1675
70B
Text Messaging
expression parsing
,
greedy
,
strings
1600
x1716
1938H
Pho Restaurant
1600
x1847
250C
Movie Critics
greedy
1600
x1875
440B
Balancer
greedy
,
implementation
1600
x1915
1121C
System Testing
implementation
1600
x1934
637D
Running with Obstacles
*special problem
,
data structures
,
dp
,
greedy
1600
x1949
727B
Bill Total Value
expression parsing
,
implementation
,
strings
1600
x1965
52B
Right Triangles
combinatorics
1600
x1978
59C
Title
expression parsing
1600
x2005
167A
Wizards and Trolleybuses
implementation
,
math
1600
x2011
314A
Sereja and Contest
implementation
1600
x2058
730G
Car Repair Shop
implementation
1600
x2100
156B
Suspects
constructive algorithms
,
data structures
,
implementation
1600
x2182
430A
Points and Segments (easy)
constructive algorithms
,
sortings
1600
x2216
46C
Hamsters and Tigers
two pointers
1600
x2216
149B
Martian Clock
implementation
1600
x2220
113A
Grammar Lessons
implementation
,
strings
1600
x2233
523D
Statistics of Recompressing Videos
*special problem
,
data structures
,
implementation
1600
x2240
209A
Multicolored Marbles
dp
,
math
1600
x2240
1184C1
Heidi and the Turing Test (Easy)
implementation
1600
x2267
135B
Rectangle and Square
brute force
,
geometry
,
math
1600
x2296
138A
Literature Lesson
implementation
1600
x2335
7B
Memory Manager
implementation
1600
x2369
847H
Load Testing
greedy
1600
x2370
305C
Ivan and Powers of Two
greedy
,
implementation
1600
x2416
373B
Making Sequences is Fun
binary search
,
implementation
,
math
1600
x2434
232A
Cycles
binary search
,
constructive algorithms
,
graphs
,
greedy
1600
x2448
1184D1
Parallel Universes (Easy)
implementation
1600
x2476
253C
Text Editor
data structures
,
dfs and similar
,
graphs
,
greedy
,
shortest paths
1600
x2521
435C
Cardiogram
implementation
1600
x2522
142A
Help Farmer
brute force
,
math
1600
x2563
272D
Dima and Two Sequences
combinatorics
,
math
,
sortings
1600
x2583
930B
Game with String
implementation
,
probabilities
,
strings
1600
x2592
725C
Hidden Word
brute force
,
constructive algorithms
,
implementation
,
strings
1600
x2594
246C
Beauty Pageant
brute force
,
constructive algorithms
,
greedy
1600
x2602
630G
Challenge Pennants
combinatorics
,
math
1600
x2621
55B
Smallest number
brute force
1600
x2626
380A
Sereja and Prefixes
binary search
,
brute force
1600
x2650
606B
Testing Robots
implementation
1600
x2730
319A
Malek Dance Club
combinatorics
,
math
1600
x2755
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