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Codeforces Round 960 (Div. 2)
08:01:38
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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
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Status
Standings
Custom test
Problems
#
Name
1994H
Fortnite
constructive algorithms
,
interactive
,
math
x58
1994G
Minecraft
bitmasks
,
brute force
,
dp
,
math
x461
1994F
Stardew Valley
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
trees
x654
1994E
Wooden Game
bitmasks
,
greedy
,
math
,
sortings
,
trees
x2481
1994D
Funny Game
constructive algorithms
,
dsu
,
graphs
,
greedy
,
math
,
number theory
,
trees
x3297
1994C
Hungry Games
binary search
,
dp
,
two pointers
x7183
1994B
Fun Game
bitmasks
,
constructive algorithms
,
greedy
,
math
x12309
1994A
Diverse Game
constructive algorithms
,
greedy
x15795
1992G
Ultra-Meow
combinatorics
,
dp
,
math
2000
x2049
1992F
Valuable Cards
brute force
,
dp
,
greedy
,
number theory
,
two pointers
1900
x4257
1992E
Novice's Mistake
brute force
,
constructive algorithms
,
implementation
,
math
,
strings
1700
x7160
1992D
Test of Love
dp
,
greedy
,
implementation
1200
x16280
1992C
Gorilla and Permutation
constructive algorithms
,
math
900
x24057
1992B
Angry Monk
greedy
,
math
,
sortings
800
x28071
1992A
Only Pluses
brute force
,
constructive algorithms
,
greedy
,
math
,
sortings
800
x32947
1989F
Simultaneous Coloring
dfs and similar
,
divide and conquer
,
graphs
3000
x254
1989E
Distance to Different
combinatorics
,
dp
,
math
2300
x1494
1989D
Smithing Skill
brute force
,
data structures
,
dp
,
greedy
,
math
,
sortings
,
two pointers
1900
x4805
1989C
Two Movies
greedy
,
math
1400
x15053
1989B
Substring and Subsequence
brute force
,
greedy
,
strings
1200
x17005
1989A
Catch the Coin
implementation
800
x23016
1988F
Heartbeat
combinatorics
,
dp
,
fft
,
math
x78
1988E
Range Minimum Sum
binary search
,
brute force
,
data structures
,
divide and conquer
,
implementation
x910
1988D
The Omnipotent Monster Killer
brute force
,
dfs and similar
,
dp
,
trees
x3498
1988C
Increasing Sequence with Fixed OR
bitmasks
,
constructive algorithms
,
greedy
x12831
1988B
Make Majority
greedy
,
implementation
x17954
1988A
Split the Multiset
brute force
,
greedy
,
math
x18493
1987H
Fumo Temple
interactive
3500
x67
1987G2
Spinning Round (Hard Version)
divide and conquer
,
dp
,
trees
3500
x78
1987G1
Spinning Round (Easy Version)
divide and conquer
,
dp
,
trees
2900
x192
1987F2
Interesting Problem (Hard Version)
dp
2600
x798
1987F1
Interesting Problem (Easy Version)
dp
2500
x907
1987E
Wonderful Tree!
brute force
,
data structures
,
dfs and similar
,
dsu
,
greedy
,
trees
2000
x2677
1987D
World is Mine
dp
,
games
1800
x5824
1987C
Basil's Garden
dp
,
greedy
1200
x14682
1987B
K-Sort
greedy
1000
x17392
1987A
Upload More RAM
greedy
,
math
800
x21904
1986G2
Permutation Problem (Hard Version)
brute force
,
data structures
,
hashing
,
math
,
number theory
2500
x838
1986G1
Permutation Problem (Simple Version)
binary search
,
brute force
,
combinatorics
,
data structures
,
math
,
number theory
2200
x1190
1986F
Non-academic Problem
dfs and similar
,
graphs
,
trees
1900
x3616
1986E
Beautiful Array
greedy
,
math
,
number theory
,
sortings
1700
x7302
1986D
Mathematical Problem
brute force
,
dp
,
greedy
,
implementation
,
math
,
two pointers
1400
x13136
1986C
Update Queries
data structures
,
greedy
,
sortings
1100
x20519
1986B
Matrix Stabilization
brute force
,
data structures
,
greedy
,
sortings
1000
x23839
1986A
X Axis
brute force
,
geometry
,
math
,
sortings
800
x35638
1985H2
Maximize the Largest Component (Hard Version)
data structures
,
dfs and similar
,
dp
,
dsu
,
implementation
2200
x1252
1985H1
Maximize the Largest Component (Easy Version)
brute force
,
data structures
,
dfs and similar
,
dsu
,
graphs
,
implementation
1700
x4598
1985G
D-Function
combinatorics
,
math
,
number theory
1600
x7752
1985F
Final Boss
binary search
,
data structures
1500
x12764
1985E
Secret Box
brute force
,
combinatorics
,
math
1200
x17474
1985D
Manhattan Circle
implementation
,
math
900
x30460
1985C
Good Prefixes
greedy
1000
x27883
1985B
Maximum Multiple Sum
brute force
,
math
,
number theory
800
x39930
1985A
Creating Words
implementation
,
strings
800
x44625
1984H
Tower Capturing
combinatorics
,
dp
,
geometry
3300
x141
1984G
Magic Trick II
constructive algorithms
,
implementation
,
sortings
3200
x201
1984F
Reconstruction
brute force
,
dp
,
math
2500
x793
1984E
Shuffle
dp
,
greedy
,
trees
2400
x1214
1984D
''a'' String Problem
brute force
,
hashing
,
implementation
,
math
,
string suffix structures
,
strings
2000
x2824
1984C2
Magnitude (Hard Version)
combinatorics
,
dp
,
greedy
,
math
1700
x6436
1984C1
Magnitude (Easy Version)
dp
,
greedy
,
math
1300
x14404
1984B
Large Addition
implementation
,
math
1100
x16461
1984A
Strange Splitting
constructive algorithms
800
x19436
1983G
Your Loss
bitmasks
,
brute force
,
dp
,
trees
3000
x160
1983F
array-value
binary search
,
bitmasks
,
data structures
,
greedy
,
two pointers
2500
x926
1983E
I Love Balls
combinatorics
,
math
,
probabilities
2300
x1637
1983D
Swap Dilemma
constructive algorithms
,
data structures
,
divide and conquer
,
greedy
,
math
,
sortings
1700
x6851
1983C
Have Your Cake and Eat It Too
binary search
,
brute force
,
greedy
,
implementation
1400
x10558
1983B
Corner Twist
constructive algorithms
,
greedy
,
implementation
,
math
1200
x14104
1983A
Array Divisibility
constructive algorithms
,
math
800
x23021
1982F
Sorting Problem Again
binary search
,
data structures
,
sortings
2600
x781
1982E
Number of k-good subarrays
bitmasks
,
brute force
,
combinatorics
,
divide and conquer
,
dp
,
math
,
meet-in-the-middle
2300
x1321
1982D
Beauty of the mountains
brute force
,
data structures
,
implementation
,
math
,
number theory
1700
x6054
1982C
Boring Day
binary search
,
data structures
,
dp
,
greedy
,
two pointers
1200
x14958
1982B
Collatz Conjecture
brute force
,
implementation
,
math
,
number theory
1200
x14927
1982A
Soccer
greedy
,
implementation
,
math
,
sortings
800
x22670
1981F
Turtle and Paths on a Tree
data structures
,
dp
,
trees
3000
x206
1981E
Turtle and Intersected Segments
data structures
,
dsu
,
graphs
,
greedy
2600
x697
1981D
Turtle and Multiplication
constructive algorithms
,
dfs and similar
,
graphs
,
number theory
2400
x1359
1981C
Turtle and an Incomplete Sequence
bitmasks
,
brute force
,
constructive algorithms
,
greedy
,
implementation
,
math
1800
x4533
1981B
Turtle and an Infinite Sequence
bitmasks
,
math
1300
x12218
1981A
Turtle and Piggy Are Playing a Game
brute force
,
greedy
,
math
800
x20526
1980G
Yasya and the Mysterious Tree
bitmasks
,
data structures
,
dfs and similar
,
graphs
,
greedy
,
strings
,
trees
2300
x1011
1980F2
Field Division (hard version)
math
,
sortings
2400
x849
1980F1
Field Division (easy version)
data structures
,
math
,
sortings
1900
x3302
1980E
Permutation of Rows and Columns
constructive algorithms
,
data structures
,
greedy
,
hashing
,
implementation
,
math
,
matrices
,
sortings
1600
x9156
1980D
GCD-sequence
greedy
,
implementation
,
math
,
number theory
1400
x12739
1980C
Sofia and the Lost Operations
constructive algorithms
,
greedy
1300
x16861
1980B
Choosing Cubes
sortings
,
sortings
800
x32046
1980A
Problem Generator
math
800
x37103
1979F
Kostyanych's Theorem
brute force
,
constructive algorithms
,
graphs
,
interactive
2900
x248
1979E
Manhattan Triangle
binary search
,
constructive algorithms
,
data structures
,
geometry
,
implementation
,
two pointers
2400
x1224
1979D
Fixing a Binary String
bitmasks
,
brute force
,
constructive algorithms
,
dp
,
greedy
,
hashing
,
strings
1800
x5805
1979C
Earning on Bets
binary search
,
combinatorics
,
constructive algorithms
,
number theory
1200
x16898
1979B
XOR Sequences
bitmasks
,
greedy
1000
x20770
1979A
Guess the Maximum
brute force
,
greedy
,
implementation
800
x27068
1978F
Large Graph
data structures
,
dfs and similar
,
dsu
,
graphs
,
number theory
,
two pointers
2400
x1115
1978E
Computing Machine
brute force
,
data structures
,
dp
,
greedy
,
implementation
2000
x3190
1978D
Elections
data structures
,
greedy
,
implementation
,
math
1600
x9595
1978C
Manhattan Permutations
constructive algorithms
,
data structures
,
greedy
,
implementation
,
math
1300
x13031
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