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2023 Post World Finals Online ICPC Challenge powered by Huawei
10 days
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Codeforces Round 944 (Div. 4)
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combine-tags-by-or
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2-sat
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bitmasks
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constructive algorithms
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dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
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geometry
graph matchings
graphs
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Name
1575J
Jeopardy of Dropped Balls
binary search
,
brute force
,
dsu
,
implementation
1500
x3648
1250L
Divide The Students
binary search
,
greedy
,
math
1500
x4022
204B
Little Elephant and Cards
binary search
,
data structures
1500
x5019
1776L
Controllers
binary search
,
math
1500
x5204
204A
Little Elephant and Interval
binary search
,
combinatorics
,
dp
1500
x5531
1725G
Garage
binary search
,
geometry
,
math
1500
x5606
760B
Frodo and pillows
binary search
,
greedy
1500
x6076
415B
Mashmokh and Tokens
binary search
,
greedy
,
implementation
,
math
1500
x6123
91B
Queue
binary search
,
data structures
1500
x6515
527C
Glass Carving
binary search
,
data structures
,
implementation
1500
x6655
1158A
The Party and Sweets
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
,
sortings
,
two pointers
1500
x6860
340D
Bubble Sort Graph
binary search
,
data structures
,
dp
1500
x7009
1010A
Fly
binary search
,
math
1500
x7993
978F
Mentors
binary search
,
data structures
,
implementation
1500
x8030
1323B
Count Subrectangles
binary search
,
greedy
,
implementation
1500
x8515
1408C
Discrete Acceleration
binary search
,
dp
,
implementation
,
math
,
two pointers
1500
x8627
1166C
A Tale of Two Lands
binary search
,
sortings
,
two pointers
1500
x9144
1659C
Line Empire
binary search
,
brute force
,
dp
,
greedy
,
implementation
,
math
1500
x9671
1933E
Turtle vs. Rabbit Race: Optimal Trainings
binary search
,
implementation
,
math
,
ternary search
1500
x9693
274A
k-Multiple Free Set
binary search
,
greedy
,
sortings
1500
x9851
991C
Candies
binary search
,
implementation
1500
x10014
1926E
Vlad and an Odd Ordering
binary search
,
bitmasks
,
data structures
,
dp
,
implementation
,
math
,
number theory
1500
x10021
1208B
Uniqueness
binary search
,
brute force
,
implementation
,
two pointers
1500
x10074
1817A
Almost Increasing Subsequence
binary search
,
data structures
,
greedy
1500
x10313
1436C
Binary Search
binary search
,
combinatorics
1500
x10529
1891C
Smilo and Monsters
binary search
,
constructive algorithms
,
greedy
,
sortings
,
two pointers
1500
x11294
1760F
Quests
binary search
,
greedy
,
sortings
1500
x11313
1795C
Tea Tasting
binary search
,
data structures
,
implementation
1500
x11425
1791F
Range Update Point Query
binary search
,
brute force
,
data structures
1500
x11510
1811E
Living Sequence
binary search
,
dp
,
math
,
number theory
1500
x11559
1416A
k-Amazing Numbers
binary search
,
data structures
,
implementation
,
two pointers
1500
x11739
1872E
Data Structures Fan
binary search
,
bitmasks
,
data structures
,
dp
1500
x12008
1249C2
Good Numbers (hard version)
binary search
,
greedy
,
math
,
meet-in-the-middle
1500
x12216
1379B
Dubious Cyrpto
binary search
,
brute force
,
math
,
number theory
1500
x12473
670D2
Magic Powder - 2
binary search
,
implementation
1500
x13073
812C
Sagheer and Nubian Market
binary search
,
sortings
1500
x13149
702C
Cellular Network
binary search
,
implementation
,
two pointers
1500
x13154
1462E1
Close Tuples (easy version)
binary search
,
combinatorics
,
math
,
sortings
,
two pointers
1500
x13195
1792C
Min Max Sort
binary search
,
brute force
,
greedy
,
math
,
two pointers
1500
x13223
701C
They Are Everywhere
binary search
,
strings
,
two pointers
1500
x13766
1301B
Motarack's Birthday
binary search
,
greedy
,
ternary search
1500
x13862
1690E
Price Maximization
binary search
,
greedy
,
math
,
two pointers
1500
x14506
1419D2
Sage's Birthday (hard version)
binary search
,
brute force
,
constructive algorithms
,
greedy
,
sortings
,
two pointers
1500
x14748
1486B
Eastern Exhibition
binary search
,
geometry
,
shortest paths
,
sortings
1500
x15243
1490F
Equalize the Array
binary search
,
data structures
,
greedy
,
math
,
sortings
1500
x15476
1492C
Maximum width
binary search
,
data structures
,
dp
,
greedy
,
two pointers
1500
x15576
165B
Burning Midnight Oil
binary search
,
implementation
1500
x16527
1487D
Pythagorean Triples
binary search
,
brute force
,
math
,
number theory
1500
x17044
676C
Vasya and String
binary search
,
dp
,
strings
,
two pointers
1500
x18133
1538F
Interesting Function
binary search
,
dp
,
math
,
number theory
1500
x18345
580B
Kefa and Company
binary search
,
sortings
,
two pointers
1500
x24945
1769B2
Копирование файлов II
*special problem
,
binary search
,
brute force
,
math
1400
x855
386B
Fly, freebies, fly!
binary search
,
brute force
,
implementation
1400
x2087
335A
Banana
binary search
,
constructive algorithms
,
greedy
1400
x2515
159C
String Manipulation 1.0
*special problem
,
binary search
,
brute force
,
data structures
,
strings
1400
x2919
1184B1
The Doctor Meets Vader (Easy)
binary search
,
sortings
1400
x5105
233B
Non-square Equation
binary search
,
brute force
,
math
1400
x7312
888C
K-Dominant Character
binary search
,
implementation
,
two pointers
1400
x8080
604B
More Cowbell
binary search
,
greedy
1400
x8252
1967A
Permutation Counting
binary search
,
greedy
,
implementation
,
math
,
sortings
1400
x8323
1896C
Matching Arrays
binary search
,
constructive algorithms
,
greedy
,
sortings
1400
x8599
1883G1
Dances (Easy version)
binary search
,
greedy
,
two pointers
1400
x9170
975C
Valhalla Siege
binary search
1400
x9372
1609C
Complex Market Analysis
binary search
,
dp
,
implementation
,
number theory
,
schedules
,
two pointers
1400
x9485
253B
Physics Practical
binary search
,
dp
,
sortings
,
two pointers
1400
x10324
1284B
New Year and Ascent Sequence
binary search
,
combinatorics
,
data structures
,
dp
,
implementation
,
sortings
1400
x10590
1904C
Array Game
binary search
,
brute force
,
data structures
,
sortings
,
two pointers
1400
x10607
1878E
Iva & Pav
binary search
,
bitmasks
,
data structures
,
greedy
1400
x11076
1907D
Jumping Through Segments
binary search
,
constructive algorithms
1400
x11961
1805C
Place for a Selfie
binary search
,
data structures
,
geometry
,
math
1400
x12017
1771B
Hossam and Friends
binary search
,
constructive algorithms
,
dp
,
two pointers
1400
x12846
1840D
Wooden Toy Festival
binary search
,
greedy
,
sortings
1400
x12854
1719C
Fighting Tournament
binary search
,
data structures
,
implementation
,
two pointers
1400
x12863
1721C
Min-Max Array Transformation
binary search
,
greedy
,
two pointers
1400
x12971
1929C
Sasha and the Casino
binary search
,
brute force
,
constructive algorithms
,
games
,
greedy
,
math
1400
x13212
1845C
Strong Password
binary search
,
dp
,
greedy
,
strings
1400
x13330
1263C
Everyone is a Winner!
binary search
,
math
,
meet-in-the-middle
,
number theory
1400
x13346
1749C
Number Game
binary search
,
data structures
,
games
,
greedy
,
implementation
1400
x13360
1183C
Computer Game
binary search
,
math
1400
x13661
1697C
awoo's Favorite Problem
binary search
,
constructive algorithms
,
data structures
,
greedy
,
implementation
,
strings
,
two pointers
1400
x13940
1452B
Toy Blocks
binary search
,
greedy
,
math
,
sortings
1400
x14439
1443C
The Delivery Dilemma
binary search
,
greedy
,
sortings
1400
x14954
1551B2
Wonderful Coloring - 2
binary search
,
constructive algorithms
,
data structures
,
greedy
1400
x15045
1628A
Meximum Array
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
,
two pointers
1400
x15205
1354C1
Simple Polygon Embedding
binary search
,
geometry
,
math
,
ternary search
1400
x15321
1701C
Schedule Management
binary search
,
greedy
,
implementation
,
two pointers
1400
x15760
670D1
Magic Powder - 1
binary search
,
brute force
,
implementation
1400
x16032
1535C
Unstable String
binary search
,
dp
,
greedy
,
implementation
,
strings
,
two pointers
1400
x16089
1624D
Palindromes Coloring
binary search
,
greedy
,
sortings
,
strings
1400
x16261
816B
Karen and Coffee
binary search
,
data structures
,
implementation
1400
x16443
1490E
Accidental Victory
binary search
,
data structures
,
greedy
1400
x18391
1201C
Maximum Median
binary search
,
greedy
,
math
,
sortings
1400
x21537
1324D
Pair of Topics
binary search
,
data structures
,
sortings
,
two pointers
1400
x26766
279B
Books
binary search
,
brute force
,
implementation
,
two pointers
1400
x47812
181B
Number of Triplets
binary search
,
brute force
1300
x2894
161A
Dress'em in Vests!
binary search
,
brute force
,
greedy
,
two pointers
1300
x4678
152B
Steps
binary search
,
implementation
1300
x6335
932B
Recursive Queries
binary search
,
data structures
,
dfs and similar
1300
x7792
996B
World Cup
binary search
,
math
1300
x8849
1315B
Homecoming
binary search
,
dp
,
greedy
,
strings
1300
x8961
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