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Codeforces Round #956 (Div. 2) and ByteRace 2024
17:09:28
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Difficulty:
—
sortings
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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Problems
#
Name
1989D
Smithing Skill
brute force
,
data structures
,
dp
,
greedy
,
math
,
sortings
,
two pointers
1900
x4073
1986E
Beautiful Array
greedy
,
math
,
number theory
,
sortings
1700
x6537
1986C
Update Queries
data structures
,
greedy
,
sortings
1100
x19113
1986B
Matrix Stabilization
brute force
,
data structures
,
greedy
,
sortings
1000
x22154
1986A
X Axis
brute force
,
geometry
,
math
,
sortings
800
x33099
1984G
Magic Trick II
constructive algorithms
,
implementation
,
sortings
3200
x190
1982F
Sorting Problem Again
binary search
,
data structures
,
sortings
2600
x681
1982A
Soccer
greedy
,
implementation
,
math
,
sortings
800
x21394
1980F2
Field Division (hard version)
math
,
sortings
2400
x798
1980F1
Field Division (easy version)
data structures
,
math
,
sortings
1900
x3167
1980E
Permutation of Rows and Columns
constructive algorithms
,
data structures
,
greedy
,
hashing
,
implementation
,
math
,
matrices
,
sortings
1600
x8786
1980B
Choosing Cubes
sortings
,
sortings
800
x31294
1978A
Alice and Books
constructive algorithms
,
greedy
,
sortings
800
x22024
1977C
Nikita and LCM
brute force
,
data structures
,
dp
,
greedy
,
math
,
number theory
,
sortings
1900
x5778
1976F
Remove Bridges
data structures
,
dfs and similar
,
dp
,
greedy
,
sortings
,
trees
2800
x424
1976A
Verify Password
implementation
,
sortings
,
strings
800
x25467
1975B
378QAQ and Mocha's Array
brute force
,
greedy
,
math
,
sortings
1000
x15669
1975A
Bazoka and Mocha's Array
brute force
,
greedy
,
implementation
,
sortings
800
x17196
1974G
Money Buys Less Happiness Now
data structures
,
greedy
,
sortings
2000
x3653
1974F
Cutting Game
binary search
,
brute force
,
data structures
,
implementation
,
sortings
,
two pointers
1900
x3104
1974B
Symmetric Encoding
implementation
,
sortings
,
strings
800
x28049
1973E
Cat, Fox and Swaps
graphs
,
math
,
sortings
2500
x688
1973C
Cat, Fox and Double Maximum
constructive algorithms
,
greedy
,
implementation
,
math
,
sortings
1700
x7332
1971G
XOUR
data structures
,
dsu
,
sortings
1700
x8038
1971E
Find the Car
binary search
,
math
,
sortings
1500
x12304
1971D
Binary Cut
dp
,
greedy
,
implementation
,
sortings
,
strings
1100
x23150
1971A
My First Sorting Problem
implementation
,
sortings
800
x39634
1970A1
Balanced Shuffle (Easy)
implementation
,
sortings
1000
x3547
1969D
Shop Game
data structures
,
greedy
,
math
,
sortings
1900
x3960
1967A
Permutation Counting
binary search
,
greedy
,
implementation
,
math
,
sortings
1400
x11023
1965A
Everything Nim
games
,
greedy
,
math
,
sortings
1400
x12035
1956F
Nene and the Passing Game
constructive algorithms
,
data structures
,
dsu
,
graphs
,
sortings
3000
x306
1955E
Long Inversions
brute force
,
greedy
,
implementation
,
sortings
1700
x7837
1955B
Progressive Square
constructive algorithms
,
data structures
,
implementation
,
sortings
1000
x25747
1954D
Colored Balls
combinatorics
,
dp
,
math
,
sortings
1800
x5474
1952J
Help, what does it mean to be "Based"
brute force
,
constructive algorithms
,
expression parsing
,
implementation
,
sortings
x723
1951C
Ticket Hoarding
greedy
,
math
,
sortings
1400
x10656
1949F
Dating
greedy
,
sortings
,
trees
2200
x833
1949B
Charming Meals
binary search
,
brute force
,
greedy
,
sortings
1500
x2491
1946A
Median of an Array
greedy
,
implementation
,
sortings
800
x24866
1945F
Kirill and Mushrooms
data structures
,
sortings
1900
x3843
1942D
Learning to Paint
binary search
,
data structures
,
dfs and similar
,
dp
,
greedy
,
implementation
,
sortings
2100
x2596
1941F
Rudolf and Imbalance
binary search
,
greedy
,
sortings
,
two pointers
1800
x5513
1940D
Almost Certainly
*special problem
,
constructive algorithms
,
data structures
,
sortings
x126
1940C
Burenka and Pether
*special problem
,
data structures
,
dfs and similar
,
divide and conquer
,
dsu
,
graphs
,
sortings
,
trees
x33
1940B
Three Arrays
*special problem
,
constructive algorithms
,
implementation
,
sortings
x181
1936C
Pokémon Arena
data structures
,
graphs
,
greedy
,
implementation
,
shortest paths
,
sortings
2400
x1169
1935C
Messenger in MAC
binary search
,
brute force
,
constructive algorithms
,
data structures
,
dp
,
greedy
,
sortings
1800
x7550
1933D
Turtle Tenacity: Continual Mods
constructive algorithms
,
greedy
,
math
,
number theory
,
sortings
1200
x18836
1933A
Turtle Puzzle: Rearrange and Negate
greedy
,
math
,
sortings
800
x36678
1932F
Feed Cats
data structures
,
dp
,
sortings
1900
x3663
1931E
Anna and the Valentine's Day Gift
games
,
greedy
,
math
,
sortings
1400
x14265
1930C
Lexicographically Largest
binary search
,
constructive algorithms
,
data structures
,
greedy
,
sortings
1700
x6664
1930A
Maximise The Score
greedy
,
sortings
800
x17810
1929A
Sasha and the Beautiful Array
constructive algorithms
,
greedy
,
math
,
sortings
800
x30115
1928B
Equalize
binary search
,
greedy
,
sortings
,
two pointers
1200
x16137
1927F
Microcycle
data structures
,
dfs and similar
,
dsu
,
graphs
,
greedy
,
implementation
,
sortings
,
trees
1900
x4026
1924B
Space Harbour
data structures
,
implementation
,
math
,
sortings
2100
x2367
1922B
Forming Triangles
combinatorics
,
constructive algorithms
,
math
,
sortings
1200
x19666
1921D
Very Different Array
data structures
,
greedy
,
sortings
,
two pointers
1100
x20647
1920B
Summation Game
games
,
greedy
,
math
,
sortings
1100
x19887
1919D
01 Tree
constructive algorithms
,
data structures
,
dsu
,
greedy
,
sortings
,
trees
2100
x3683
1918F
Caterpillar on a Tree
dfs and similar
,
graphs
,
greedy
,
implementation
,
sortings
,
trees
2500
x814
1918E
ace5 and Task Order
constructive algorithms
,
divide and conquer
,
implementation
,
interactive
,
probabilities
,
sortings
2200
x1627
1918B
Minimize Inversions
constructive algorithms
,
data structures
,
greedy
,
implementation
,
sortings
900
x22800
1915G
Bicycles
graphs
,
greedy
,
implementation
,
shortest paths
,
sortings
1800
x5748
1915F
Greetings
data structures
,
divide and conquer
,
sortings
1500
x12403
1914E2
Game with Marbles (Hard Version)
games
,
greedy
,
sortings
1400
x11628
1914E1
Game with Marbles (Easy Version)
brute force
,
games
,
greedy
,
sortings
1400
x11524
1914D
Three Activities
brute force
,
dp
,
greedy
,
implementation
,
sortings
1200
x19449
1912A
Accumulator Apex
data structures
,
implementation
,
sortings
1900
x1945
1909C
Heavy Intervals
constructive algorithms
,
data structures
,
dsu
,
greedy
,
math
,
sortings
1400
x10441
1907F
Shift and Reverse
greedy
,
sortings
1800
x4589
1906F
Maximize The Value
data structures
,
sortings
2100
x978
1904D2
Set To Max (Hard Version)
constructive algorithms
,
data structures
,
divide and conquer
,
greedy
,
implementation
,
sortings
1800
x4060
1904C
Array Game
binary search
,
brute force
,
data structures
,
sortings
,
two pointers
1400
x11487
1904B
Collecting Game
binary search
,
dp
,
greedy
,
sortings
,
two pointers
1100
x13853
1903A
Halloumi Boxes
brute force
,
greedy
,
sortings
800
x27020
1901E
Compressed Tree
dfs and similar
,
dp
,
graphs
,
greedy
,
sortings
,
trees
2200
x1430
1899G
Unusual Entertainment
data structures
,
dfs and similar
,
dsu
,
shortest paths
,
sortings
,
trees
,
two pointers
1900
x3002
1899E
Queue Sort
greedy
,
implementation
,
sortings
1300
x14567
1898E
Sofia and Strings
data structures
,
greedy
,
sortings
,
strings
,
two pointers
2200
x2130
1896G
Pepe Racing
constructive algorithms
,
implementation
,
interactive
,
sortings
3200
x318
1896E
Permutation Sorting
data structures
,
sortings
2100
x2095
1896C
Matching Arrays
binary search
,
constructive algorithms
,
greedy
,
sortings
1400
x9047
1896A
Jagged Swaps
sortings
800
x20544
1895E
Infinite Card Game
binary search
,
brute force
,
data structures
,
dfs and similar
,
dp
,
dsu
,
games
,
graphs
,
greedy
,
sortings
,
two pointers
2300
x1501
1895B
Points and Minimum Distance
greedy
,
math
,
sortings
800
x20019
1893B
Neutral Tonality
constructive algorithms
,
greedy
,
sortings
,
two pointers
1700
x8344
1891E
Brukhovich and Exams
brute force
,
greedy
,
implementation
,
math
,
sortings
2500
x796
1891C
Smilo and Monsters
binary search
,
constructive algorithms
,
greedy
,
sortings
,
two pointers
1500
x12041
1891B
Deja Vu
brute force
,
math
,
sortings
1100
x16672
1891A
Sorting with Twos
constructive algorithms
,
sortings
800
x18769
1889C1
Doremy's Drying Plan (Easy Version)
brute force
,
data structures
,
dp
,
greedy
,
sortings
2000
x3108
1889B
Doremy's Connecting Plan
constructive algorithms
,
greedy
,
math
,
sortings
1700
x6992
1886E
I Wanna be the Team Leader
bitmasks
,
constructive algorithms
,
dp
,
greedy
,
math
,
sortings
,
two pointers
2400
x1374
1884C
Medium Design
brute force
,
data structures
,
dp
,
greedy
,
sortings
1700
x5721
1883G2
Dances (Hard Version)
binary search
,
greedy
,
sortings
,
two pointers
1900
x5074
1876C
Autosynthesis
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
sortings
2100
x2191
1876B
Effects of Anti Pimples
combinatorics
,
number theory
,
sortings
1500
x7840
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