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Before contest
Codeforces Round #956 (Div. 2) and ByteRace 2024
23:52:06
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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
1760G
SlavicG's Favorite Problem
bitmasks
,
dfs and similar
,
graphs
1700
x7098
1760F
Quests
binary search
,
greedy
,
sortings
1500
x11714
1760E
Binary Inversions
data structures
,
greedy
,
math
1100
x19678
1760D
Challenging Valleys
implementation
,
two pointers
1000
x22929
1760C
Advantage
data structures
,
implementation
,
sortings
800
x35884
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x42884
1760A
Medium Number
implementation
,
sortings
800
x55903
1759G
Restore the Permutation
binary search
,
constructive algorithms
,
data structures
,
greedy
,
math
1900
x4333
1759F
All Possible Digits
binary search
,
data structures
,
greedy
,
math
,
number theory
1800
x3798
1759E
The Humanoid
brute force
,
dp
,
sortings
1500
x10399
1759D
Make It Round
brute force
,
number theory
1400
x12805
1759C
Thermostat
greedy
,
math
,
shortest paths
1100
x17258
1759B
Lost Permutation
math
800
x21906
1759A
Yes-Yes?
implementation
,
strings
800
x29327
1758F
Decent Division
constructive algorithms
,
data structures
3000
x162
1758E
Tick, Tock
combinatorics
,
dfs and similar
,
dsu
,
graphs
2500
x815
1758D
Range = √Sum
binary search
,
brute force
,
constructive algorithms
,
math
,
two pointers
1800
x7075
1758C
Almost All Multiples
greedy
,
number theory
1400
x13258
1758B
XOR = Average
constructive algorithms
900
x20769
1758A
SSeeeeiinngg DDoouubbllee
constructive algorithms
,
strings
800
x24885
1754B
Kevin and Permutation
constructive algorithms
,
greedy
,
math
800
x18714
1754A
Technical Support
greedy
800
x22861
1753F
Minecraft Series
brute force
,
two pointers
3500
x194
1753E
N Machines
binary search
,
brute force
,
greedy
3300
x311
1753D
The Beach
constructive algorithms
,
dfs and similar
,
graphs
,
shortest paths
2400
x1691
1753C
Wish I Knew How to Sort
dp
,
math
,
probabilities
2000
x4245
1753B
Factorial Divisibility
math
,
number theory
1600
x12374
1753A2
Make Nonzero Sum (hard version)
constructive algorithms
,
dp
,
greedy
1500
x10021
1753A1
Make Nonzero Sum (easy version)
constructive algorithms
,
dp
,
greedy
1300
x14565
1750H
BinaryStringForces
constructive algorithms
,
data structures
,
dp
3500
x77
1750G
Doping
combinatorics
,
dp
,
math
3300
x232
1750F
Majority
combinatorics
,
dp
,
math
,
strings
2700
x873
1750E
Bracket Cost
binary search
,
data structures
,
divide and conquer
,
dp
,
greedy
,
strings
2400
x1375
1750D
Count GCD
combinatorics
,
math
,
number theory
1800
x5708
1750C
Complementary XOR
constructive algorithms
,
implementation
1400
x9392
1750B
Maximum Substring
brute force
,
greedy
,
implementation
800
x16110
1750A
Indirect Sort
constructive algorithms
,
implementation
,
math
800
x16925
1749F
Distance to the Path
data structures
,
dfs and similar
,
trees
2800
x489
1749E
Cactus Wall
constructive algorithms
,
dfs and similar
,
graphs
,
shortest paths
2400
x1647
1749D
Counting Arrays
combinatorics
,
dp
,
math
,
number theory
1900
x5422
1749C
Number Game
binary search
,
data structures
,
games
,
greedy
,
implementation
1400
x13645
1749B
Death's Blessing
greedy
900
x20749
1749A
Cowardly Rooks
greedy
,
implementation
800
x22165
1748F
Circular Xor Reversal
bitmasks
,
constructive algorithms
3000
x328
1748E
Yet Another Array Counting Problem
binary search
,
data structures
,
divide and conquer
,
dp
,
flows
,
math
,
trees
2300
x1771
1748D
ConstructOR
bitmasks
,
chinese remainder theorem
,
combinatorics
,
constructive algorithms
,
math
,
number theory
2100
x2710
1748C
Zero-Sum Prefixes
brute force
,
data structures
,
dp
,
greedy
,
implementation
1600
x10759
1748B
Diverse Substrings
brute force
,
implementation
,
strings
1400
x14726
1748A
The Ultimate Square
math
800
x23781
1747E
List Generation
combinatorics
,
dp
,
math
2900
x491
1747D
Yet Another Problem
binary search
,
bitmasks
,
constructive algorithms
,
data structures
1900
x4563
1747C
Swap Game
games
1200
x20749
1747B
BAN BAN
constructive algorithms
900
x22429
1747A
Two Groups
constructive algorithms
,
greedy
800
x24629
1746G
Olympiad Training
binary search
,
data structures
,
dp
,
flows
,
geometry
,
implementation
,
sortings
3500
x91
1746F
Kazaee
data structures
,
hashing
,
probabilities
2800
x1606
1746E2
Joking (Hard Version)
dp
,
interactive
3200
x382
1746E1
Joking (Easy Version)
binary search
,
constructive algorithms
,
interactive
,
ternary search
2500
x1390
1746D
Paths on the Tree
dfs and similar
,
dp
,
greedy
,
sortings
,
trees
1900
x4508
1746C
Permutation Operations
constructive algorithms
,
greedy
,
implementation
,
math
1300
x12590
1746B
Rebellion
constructive algorithms
,
greedy
,
two pointers
800
x16981
1746A
Maxmina
constructive algorithms
,
greedy
800
x19692
1744F
MEX vs MED
math
,
two pointers
2000
x2977
1744E2
Divisible Numbers (hard version)
brute force
,
math
,
number theory
1900
x5421
1744E1
Divisible Numbers (easy version)
brute force
,
math
,
number theory
1500
x10521
1744D
Divisibility by 2^n
greedy
,
math
,
sortings
1200
x20833
1744C
Traffic Light
binary search
,
implementation
,
two pointers
1000
x25522
1744B
Even-Odd Increments
implementation
,
math
800
x23159
1744A
Number Replacement
greedy
,
implementation
800
x26743
1743G
Antifibonacci Cut
bitmasks
,
combinatorics
,
constructive algorithms
,
data structures
,
dp
,
hashing
,
math
3000
x249
1743F
Intersection and Union
data structures
,
dp
,
matrices
,
probabilities
2300
x1443
1743E
FTL
binary search
,
dp
2400
x1506
1743D
Problem with Random Tests
brute force
,
dp
,
greedy
,
probabilities
1700
x7429
1743C
Save the Magazines
constructive algorithms
,
dp
,
greedy
1100
x18840
1743B
Permutation Value
constructive algorithms
,
greedy
800
x22046
1743A
Password
brute force
,
combinatorics
,
implementation
,
math
800
x26411
1742G
Orray
bitmasks
,
brute force
,
greedy
,
math
,
sortings
1500
x10261
1742F
Smaller
constructive algorithms
,
greedy
,
strings
1500
x11179
1742E
Scuza
binary search
,
greedy
,
math
1200
x23076
1742D
Coprime
brute force
,
greedy
,
number theory
1100
x22548
1742C
Stripes
implementation
900
x31839
1742B
Increasing
greedy
,
implementation
,
sortings
800
x45769
1742A
Sum
implementation
800
x67395
1741G
Kirill and Company
bitmasks
,
brute force
,
dfs and similar
,
dp
,
flows
,
graphs
,
shortest paths
2200
x1452
1741F
Multi-Colored Segments
binary search
,
data structures
,
math
,
sortings
2000
x2279
1741E
Sending a Sequence Over the Network
dp
1600
x11336
1741D
Masha and a Beautiful Tree
dfs and similar
,
divide and conquer
,
graphs
,
sortings
,
trees
1300
x14785
1741C
Minimize the Thickness
brute force
,
greedy
,
math
,
two pointers
1100
x17434
1741B
Funny Permutation
constructive algorithms
,
math
800
x25064
1741A
Compare T-Shirt Sizes
implementation
,
implementation
,
strings
800
x30252
1740I
Arranging Crystal Balls
data structures
,
divide and conquer
,
divide and conquer
,
dp
,
geometry
,
graphs
,
number theory
3500
x109
1740H
MEX Tree Manipulation
data structures
,
trees
3300
x207
1740G
Dangerous Laser Power
constructive algorithms
,
dsu
,
sortings
3100
x184
1740F
Conditional Mix
combinatorics
,
dp
,
math
2600
x777
1740E
Hanging Hearts
constructive algorithms
,
data structures
,
dfs and similar
,
dp
,
greedy
,
trees
1800
x4201
1740D
Knowledge Cards
constructive algorithms
,
data structures
1500
x7870
1740C
Bricks and Bags
constructive algorithms
,
games
,
greedy
,
sortings
1400
x10764
1740B
Jumbo Extra Cheese 2
geometry
,
greedy
,
sortings
800
x13644
1740A
Factorise N+M
constructive algorithms
,
number theory
800
x19850
1739F
Keyboard Design
bitmasks
,
data structures
,
dp
,
string suffix structures
,
strings
2600
x517
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