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Before contest
Codeforces Round 943 (Div. 3)
23:07:21
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Difficulty:
—
games
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
1375F
Integer Game
constructive algorithms
,
games
,
interactive
,
math
2600
x1929
1628D2
Game on Sum (Hard Version)
combinatorics
,
dp
,
games
,
math
2400
x1977
896B
Ithea Plays With Chtholly
binary search
,
constructive algorithms
,
games
,
greedy
,
interactive
2000
x2048
533C
Board Game
games
,
greedy
,
implementation
,
math
1700
x2145
15C
Industrial Nim
games
2000
x2156
786A
Berzerk
dfs and similar
,
dp
,
games
2000
x2304
1864E
Guess Game
bitmasks
,
data structures
,
games
,
math
,
probabilities
,
sortings
,
strings
,
trees
2100
x2461
768E
Game of Stones
bitmasks
,
dp
,
games
2100
x2630
120E
Put Knight!
games
,
math
1400
x2643
293A
Weird Game
games
,
greedy
1500
x2797
1605D
Treelabeling
bitmasks
,
constructive algorithms
,
dfs and similar
,
games
,
greedy
,
implementation
,
trees
2100
x2835
1628D1
Game on Sum (Easy Version)
combinatorics
,
dp
,
games
,
math
2100
x3013
794C
Naming Company
games
,
greedy
,
sortings
1800
x3026
936B
Sleepy Game
dfs and similar
,
dp
,
games
,
graphs
2100
x3028
388C
Fox and Card Game
games
,
greedy
,
sortings
2000
x3077
1147C
Thanos Nim
games
2000
x3130
917B
MADMAX
dfs and similar
,
dp
,
games
,
graphs
1700
x3480
1333D
Challenges in school №41
brute force
,
constructive algorithms
,
games
,
graphs
,
greedy
,
implementation
,
sortings
2100
x3631
1770D
Koxia and Game
constructive algorithms
,
data structures
,
dfs and similar
,
dsu
,
flows
,
games
,
graph matchings
,
graphs
,
implementation
2000
x3659
1665D
GCD Guess
bitmasks
,
chinese remainder theorem
,
constructive algorithms
,
games
,
interactive
,
math
,
number theory
2000
x3679
980C
Posterized
games
,
greedy
1700
x3722
1383B
GameGame
bitmasks
,
constructive algorithms
,
dp
,
games
,
greedy
,
math
1900
x4759
859C
Pie Rules
dp
,
games
1500
x5238
1372D
Omkar and Circle
brute force
,
dp
,
games
,
greedy
2100
x5285
1033C
Permutation Game
brute force
,
dp
,
games
1600
x5368
1737C
Ela and Crickets
constructive algorithms
,
games
,
implementation
,
math
1500
x5550
1955F
Unfair Game
dp
,
games
,
greedy
,
math
,
schedules
1800
x5601
455B
A Lot of Games
dfs and similar
,
dp
,
games
,
implementation
,
strings
,
trees
1900
x5642
1495B
Let's Go Hiking
games
,
greedy
1900
x5832
1215D
Ticket Game
games
,
greedy
,
math
1700
x5967
197A
Plate Game
constructive algorithms
,
games
,
math
1600
x6031
1190B
Tokitsukaze, CSL and Stone Game
games
1800
x6178
1194D
1-2-K Game
games
,
math
1700
x6186
1425A
Arena of Greed
games
,
greedy
1400
x6348
1772E
Permutation Game
games
1700
x6375
1873H
Mad City
dfs and similar
,
dsu
,
games
,
graphs
,
shortest paths
,
trees
1700
x6534
934A
A Compatible Pair
brute force
,
games
1400
x6699
148D
Bag of mice
dp
,
games
,
math
,
probabilities
1800
x6748
1503B
3-Coloring
constructive algorithms
,
games
,
interactive
1700
x6832
1728D
Letter Picking
constructive algorithms
,
dp
,
games
,
two pointers
1800
x6836
257B
Playing Cubes
games
,
greedy
,
implementation
1300
x6856
3C
Tic-tac-toe
brute force
,
games
,
implementation
1800
x6856
1404B
Tree Tag
dfs and similar
,
dp
,
games
,
trees
1900
x7073
1527B2
Palindrome Game (hard version)
constructive algorithms
,
games
1900
x7524
150A
Win or Freeze
games
,
math
,
number theory
1400
x7565
630R
Game
games
,
math
1200
x8293
1965A
Everything Nim
games
,
greedy
,
math
,
sortings
x8391
346A
Alice and Bob
games
,
math
,
number theory
1600
x8446
914B
Conan and Agasa play a Card Game
games
,
greedy
,
implementation
1200
x8497
1739C
Card Game
combinatorics
,
constructive algorithms
,
dp
,
games
1500
x8688
1921E
Eat the Chip
brute force
,
games
,
greedy
,
math
1600
x8851
705B
Spider Man
games
,
math
1100
x9030
1451D
Circle Game
games
,
geometry
,
math
1700
x9258
493D
Vasya and Chess
constructive algorithms
,
games
,
math
1700
x9502
1220C
Substring Game in the Lesson
games
,
greedy
,
strings
1300
x9890
1867C
Salyg1n and the MEX Game
constructive algorithms
,
data structures
,
games
,
greedy
,
interactive
1300
x10511
1738C
Even Number Addicts
dp
,
games
,
greedy
,
math
1500
x10513
1740C
Bricks and Bags
constructive algorithms
,
games
,
greedy
,
sortings
1400
x10548
1972B
Coin Games
games
,
math
x10682
1396B
Stoned Game
brute force
,
constructive algorithms
,
games
,
greedy
1800
x10860
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x10912
1914E1
Game with Marbles (Easy Version)
brute force
,
games
,
greedy
,
sortings
1400
x11076
1914E2
Game with Marbles (Hard Version)
games
,
greedy
,
sortings
1400
x11171
616B
Dinner with Emma
games
,
greedy
1000
x11259
1155B
Game with Telephone Numbers
games
,
greedy
,
implementation
1200
x11713
1537D
Deleting Divisors
games
,
math
,
number theory
1700
x11830
841B
Godsend
games
,
math
1100
x11952
1860C
Game on Permutation
data structures
,
dp
,
games
,
greedy
1400
x12375
1834C
Game with Reversing
games
,
greedy
,
math
,
strings
1200
x12600
1102C
Doors Breaking and Repairing
games
1200
x12747
1929C
Sasha and the Casino
binary search
,
brute force
,
constructive algorithms
,
games
,
greedy
,
math
1400
x13126
1931E
Anna and the Valentine's Day Gift
games
,
greedy
,
math
,
sortings
1400
x13184
1749C
Number Game
binary search
,
data structures
,
games
,
greedy
,
implementation
1400
x13302
1943A
MEX Game 1
games
,
greedy
1300
x14982
1874A
Jellyfish and Game
brute force
,
games
,
greedy
,
implementation
1200
x15726
570B
Simple Game
constructive algorithms
,
games
,
greedy
,
implementation
,
math
1300
x15755
1672A
Log Chopping
games
,
implementation
,
math
800
x15832
1695A
Subrectangle Guess
games
800
x16101
1848A
Vika and Her Friends
games
,
math
900
x16182
1627B
Not Sitting
games
,
greedy
,
sortings
1300
x16252
1916C
Training Before the Olympiad
constructive algorithms
,
games
,
greedy
,
implementation
,
math
1200
x16595
1270A
Card Game
games
,
greedy
,
math
800
x16608
546C
Soldier and Cards
brute force
,
dfs and similar
,
games
1400
x17049
1363C
Game On Leaves
games
,
trees
1600
x17793
1695B
Circle Game
games
,
greedy
1000
x17994
1956B
Nene and the Card Game
games
,
greedy
800
x18097
1956A
Nene's Game
binary search
,
brute force
,
data structures
,
games
,
greedy
800
x18199
1673A
Subtle Substring Subtraction
games
,
greedy
,
strings
800
x18211
1920B
Summation Game
games
,
greedy
,
math
,
sortings
1100
x19159
1455C
Ping-pong
constructive algorithms
,
games
,
math
1100
x19213
1419A
Digit Game
games
,
greedy
,
implementation
900
x19244
1842A
Tenzing and Tsondu
games
,
math
800
x19424
1747C
Swap Game
games
1200
x20275
832A
Sasha and Sticks
games
,
math
800
x20329
1681A
Game with Cards
games
,
greedy
800
x20707
1684A
Digit Minimization
constructive algorithms
,
games
,
math
,
strings
800
x23451
1370C
Number Game
games
,
math
,
number theory
1400
x23502
1365A
Matrix Game
games
,
greedy
,
implementation
1100
x23544
1844A
Subtraction Game
constructive algorithms
,
games
800
x23830
1382B
Sequential Nim
dp
,
games
1100
x23862
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