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Before contest
Codeforces Round #956 (Div. 2) and ByteRace 2024
02:03:22
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Difficulty:
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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
1986E
Beautiful Array
greedy
,
math
,
number theory
,
sortings
1700
x6570
1985H1
Maximize the Largest Component (Easy Version)
brute force
,
data structures
,
dfs and similar
,
dsu
,
graphs
,
implementation
1700
x4293
1984C2
Magnitude (Hard Version)
combinatorics
,
dp
,
greedy
,
math
1700
x6171
1982D
Beauty of the mountains
brute force
,
data structures
,
implementation
,
math
,
number theory
1700
x5568
1975D
Paint the Tree
brute force
,
dfs and similar
,
dp
,
greedy
,
shortest paths
,
trees
1700
x5071
1973C
Cat, Fox and Double Maximum
constructive algorithms
,
greedy
,
implementation
,
math
,
sortings
1700
x7340
1971G
XOUR
data structures
,
dsu
,
sortings
1700
x8046
1970C2
Game on Tree (Medium)
dfs and similar
,
dp
,
games
,
trees
1700
x1961
1969C
Minimizing the Sum
dp
,
implementation
1700
x7483
1955E
Long Inversions
brute force
,
greedy
,
implementation
,
sortings
1700
x7839
1950F
0, 1, 2, Tree!
bitmasks
,
brute force
,
greedy
,
implementation
,
trees
1700
x8327
1948D
Tandem Repeats?
brute force
,
strings
,
two pointers
1700
x8680
1945E
Binary Search
binary search
,
constructive algorithms
,
greedy
1700
x7483
1942C2
Bessie's Birthday Cake (Hard Version)
geometry
,
greedy
,
math
1700
x5796
1936A
Bitwise Operation Wizard
bitmasks
,
constructive algorithms
,
greedy
,
interactive
,
math
1700
x6907
1934C
Find a Mine
binary search
,
constructive algorithms
,
geometry
,
greedy
,
interactive
,
math
1700
x6319
1931F
Chat Screenshots
combinatorics
,
dfs and similar
,
graphs
1700
x7363
1930C
Lexicographically Largest
binary search
,
constructive algorithms
,
data structures
,
greedy
,
sortings
1700
x6668
1916D
Mathematical Problem
brute force
,
constructive algorithms
,
geometry
,
math
1700
x8124
1906M
Triangle Construction
greedy
,
math
1700
x2439
1903D1
Maximum And Queries (easy version)
binary search
,
bitmasks
,
brute force
,
greedy
1700
x5324
1901D
Yet Another Monster Fight
binary search
,
dp
,
greedy
,
implementation
,
math
1700
x6465
1898C
Colorful Grid
constructive algorithms
1700
x5144
1896D
Ones and Twos
binary search
,
data structures
,
divide and conquer
,
math
,
two pointers
1700
x5409
1893B
Neutral Tonality
constructive algorithms
,
greedy
,
sortings
,
two pointers
1700
x8348
1889B
Doremy's Connecting Plan
constructive algorithms
,
greedy
,
math
,
sortings
1700
x6993
1884C
Medium Design
brute force
,
data structures
,
dp
,
greedy
,
sortings
1700
x5724
1883E
Look Back
bitmasks
,
greedy
1700
x7485
1881F
Minimum Maximum Distance
dfs and similar
,
dp
,
graphs
,
shortest paths
,
trees
1700
x6324
1879D
Sum of XOR Functions
bitmasks
,
combinatorics
,
divide and conquer
,
dp
,
math
1700
x6966
1873H
Mad City
dfs and similar
,
dsu
,
games
,
graphs
,
shortest paths
,
trees
1700
x6897
1868B1
Candy Party (Easy Version)
bitmasks
,
constructive algorithms
,
graphs
,
greedy
,
implementation
,
math
1700
x6686
1864D
Matrix Cascade
brute force
,
constructive algorithms
,
data structures
,
dp
,
greedy
,
math
1700
x6506
1850H
The Third Letter
dfs and similar
,
dsu
,
graphs
,
greedy
,
implementation
1700
x7809
1849D
Array Painting
constructive algorithms
,
greedy
,
two pointers
1700
x8095
1835A
k-th equality
brute force
,
implementation
,
math
1700
x7604
1833F
Ira and Flamenco
combinatorics
,
constructive algorithms
,
data structures
,
implementation
,
math
,
sortings
,
two pointers
1700
x6999
1829H
Don't Blame Me
bitmasks
,
combinatorics
,
dp
,
math
1700
x7358
1826D
Running Miles
brute force
,
dp
,
greedy
1700
x9024
1822G1
Magic Triples (Easy Version)
brute force
,
data structures
,
math
,
number theory
1700
x6784
1822F
Gardening Friends
brute force
,
dfs and similar
,
dp
,
graphs
,
trees
1700
x5791
1814B
Long Legs
brute force
,
math
1700
x9746
1810D
Climbing the Tree
binary search
,
math
1700
x7249
1807F
Bouncy Ball
brute force
,
dfs and similar
,
implementation
1700
x6039
1799C
Double Lexicographically Minimum
greedy
,
strings
1700
x5645
1798C
Candy Store
greedy
,
math
,
number theory
1700
x7951
1792D
Fixed Prefix Permutations
binary search
,
bitmasks
,
data structures
,
hashing
,
math
,
sortings
1700
x6019
1783C
Yet Another Tournament
binary search
,
greedy
,
sortings
1700
x9031
1779D
Boris and His Amazing Haircut
constructive algorithms
,
data structures
,
dp
,
dsu
,
greedy
,
sortings
1700
x7655
1777C
Quiz Master
binary search
,
math
,
number theory
,
sortings
,
two pointers
1700
x8154
1776F
Train Splitting
constructive algorithms
,
graphs
,
greedy
1700
x3318
1772E
Permutation Game
games
1700
x6566
1770C
Koxia and Number Theory
brute force
,
chinese remainder theorem
,
math
,
number theory
1700
x8397
1765D
Watch the Videos
binary search
,
constructive algorithms
,
two pointers
1700
x4014
1760G
SlavicG's Favorite Problem
bitmasks
,
dfs and similar
,
graphs
1700
x7102
1743D
Problem with Random Tests
brute force
,
dp
,
greedy
,
probabilities
1700
x7431
1735D
Meta-set
brute force
,
combinatorics
,
data structures
,
hashing
,
math
1700
x5384
1731D
Valiant's New Map
binary search
,
brute force
,
data structures
,
dp
,
two pointers
1700
x6906
1731C
Even Subarrays
bitmasks
,
brute force
,
hashing
,
math
,
number theory
1700
x9203
1722F
L-shapes
dfs and similar
,
implementation
1700
x6693
1715C
Monoblock
combinatorics
,
data structures
,
implementation
,
math
1700
x8468
1714G
Path Prefixes
binary search
,
data structures
,
dfs and similar
,
trees
1700
x7333
1709D
Rorororobot
binary search
,
data structures
,
greedy
,
math
1700
x8216
1706D1
Chopping Carrots (Easy Version)
binary search
,
brute force
,
constructive algorithms
,
greedy
,
number theory
1700
x6766
1702F
Equate Multisets
constructive algorithms
,
data structures
,
greedy
,
math
,
number theory
1700
x8130
1700C
Helping the Nature
constructive algorithms
,
data structures
,
greedy
1700
x10643
1699C
The Third Problem
combinatorics
,
constructive algorithms
,
math
1700
x9537
1695C
Zero Path
brute force
,
data structures
,
dp
,
graphs
,
greedy
,
shortest paths
1700
x10627
1693B
Fake Plastic Trees
dfs and similar
,
dp
,
greedy
,
trees
1700
x8208
1692H
Gambling
data structures
,
dp
,
greedy
,
math
1700
x7227
1690F
Shifting String
graphs
,
math
,
number theory
,
strings
1700
x6946
1688C
Manipulating History
constructive algorithms
,
greedy
,
strings
1700
x8016
1687B
Railway System
constructive algorithms
,
graphs
,
greedy
,
interactive
,
sortings
1700
x3531
1684D
Traps
constructive algorithms
,
greedy
,
sortings
1700
x9452
1681D
Required Length
brute force
,
dfs and similar
,
dp
,
hashing
,
shortest paths
1700
x9424
1677B
Tokitsukaze and Meeting
data structures
,
implementation
,
math
1700
x4086
1672D
Cyclic Rotation
constructive algorithms
,
greedy
,
implementation
,
two pointers
1700
x6120
1670D
Very Suspicious
binary search
,
brute force
,
geometry
,
greedy
,
implementation
,
math
1700
x5016
1661C
Water the Trees
binary search
,
greedy
,
math
1700
x9134
1660F1
Promising String (easy version)
brute force
,
implementation
,
math
,
strings
1700
x7100
1658C
Shinju and the Lost Permutation
constructive algorithms
,
math
1700
x9185
1644D
Cross Coloring
data structures
,
implementation
,
math
1700
x7071
1628B
Peculiar Movie Preferences
greedy
,
strings
1700
x11350
1626C
Monsters And Spells
binary search
,
data structures
,
dp
,
greedy
,
implementation
,
math
,
two pointers
1700
x10736
1625C
Road Optimization
dp
1700
x10312
1621C
Hidden Permutations
dfs and similar
,
interactive
,
math
1700
x6805
1619E
MEX and Increments
constructive algorithms
,
data structures
,
dp
,
greedy
,
implementation
,
math
,
sortings
1700
x8898
1618E
Singers' Tour
constructive algorithms
,
math
1700
x7042
1611E1
Escape The Maze (easy version)
dfs and similar
,
greedy
,
shortest paths
,
trees
,
two pointers
1700
x7085
1608C
Game Master
data structures
,
dfs and similar
,
dp
,
graphs
,
greedy
,
two pointers
1700
x6503
1598D
Training Session
combinatorics
,
data structures
,
geometry
,
implementation
,
math
1700
x8485
1594D
The Number of Imposters
constructive algorithms
,
dfs and similar
,
dp
,
dsu
,
graphs
1700
x7231
1592C
Bakry and Partitioning
bitmasks
,
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
trees
1700
x7752
1583C
Omkar and Determination
data structures
,
dp
1700
x6857
1580A
Portal
brute force
,
data structures
,
dp
,
greedy
,
implementation
1700
x3599
1579F
Array Stabilization (AND version)
brute force
,
graphs
,
math
,
number theory
,
shortest paths
1700
x4653
1579E2
Array Optimization by Deque
data structures
,
greedy
1700
x6509
1578H
Higher Order Functions
implementation
,
strings
1700
x2003
1571E
Fix the String
*special problem
,
bitmasks
,
dp
,
greedy
1700
x331
1562D1
Two Hundred Twenty One (easy version)
data structures
,
dp
,
math
1700
x6238
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