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13 days
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games
combine-tags-by-or
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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
959A
Mahmoud and Ehab and the even-odd game
games
,
math
800
x44113
1899A
Game with Integers
games
,
math
,
number theory
800
x37719
1858A
Buttons
games
,
greedy
,
math
800
x34214
1373B
01 Game
games
900
x32797
1919A
Wallet Exchange
games
,
math
800
x31698
276B
Little Girl and Game
games
,
greedy
1300
x27228
1472D
Even-Odd Game
dp
,
games
,
greedy
,
sortings
1200
x26060
1480A
Yet Another String Game
games
,
greedy
,
strings
800
x25422
1719A
Chip Game
games
,
math
800
x25004
1841A
Game with Board
constructive algorithms
,
games
800
x24214
1527B1
Palindrome Game (easy version)
constructive algorithms
,
games
1200
x24195
1398B
Substring Removal Game
games
,
greedy
,
sortings
800
x24063
1382B
Sequential Nim
dp
,
games
1100
x23885
1844A
Subtraction Game
constructive algorithms
,
games
800
x23856
1365A
Matrix Game
games
,
greedy
,
implementation
1100
x23553
1370C
Number Game
games
,
math
,
number theory
1400
x23526
1684A
Digit Minimization
constructive algorithms
,
games
,
math
,
strings
800
x23471
1681A
Game with Cards
games
,
greedy
800
x20711
832A
Sasha and Sticks
games
,
math
800
x20347
1747C
Swap Game
games
1200
x20303
1842A
Tenzing and Tsondu
games
,
math
800
x19447
1419A
Digit Game
games
,
greedy
,
implementation
900
x19255
1455C
Ping-pong
constructive algorithms
,
games
,
math
1100
x19226
1920B
Summation Game
games
,
greedy
,
math
,
sortings
1100
x19225
1956A
Nene's Game
binary search
,
brute force
,
data structures
,
games
,
greedy
800
x18520
1956B
Nene and the Card Game
games
,
greedy
800
x18437
1673A
Subtle Substring Subtraction
games
,
greedy
,
strings
800
x18216
1695B
Circle Game
games
,
greedy
1000
x18015
1363C
Game On Leaves
games
,
trees
1600
x17819
546C
Soldier and Cards
brute force
,
dfs and similar
,
games
1400
x17069
1270A
Card Game
games
,
greedy
,
math
800
x16689
1916C
Training Before the Olympiad
constructive algorithms
,
games
,
greedy
,
implementation
,
math
1200
x16636
1627B
Not Sitting
games
,
greedy
,
sortings
1300
x16273
1848A
Vika and Her Friends
games
,
math
900
x16209
1695A
Subrectangle Guess
games
800
x16107
1672A
Log Chopping
games
,
implementation
,
math
800
x15841
570B
Simple Game
constructive algorithms
,
games
,
greedy
,
implementation
,
math
1300
x15769
1874A
Jellyfish and Game
brute force
,
games
,
greedy
,
implementation
1200
x15761
1943A
MEX Game 1
games
,
greedy
1300
x15184
1966A
Card Exchange
constructive algorithms
,
games
,
greedy
800
x13453
1749C
Number Game
binary search
,
data structures
,
games
,
greedy
,
implementation
1400
x13335
1931E
Anna and the Valentine's Day Gift
games
,
greedy
,
math
,
sortings
1400
x13262
1929C
Sasha and the Casino
binary search
,
brute force
,
constructive algorithms
,
games
,
greedy
,
math
1400
x13183
1102C
Doors Breaking and Repairing
games
1200
x12782
1834C
Game with Reversing
games
,
greedy
,
math
,
strings
1200
x12626
1972B
Coin Games
games
x12543
1860C
Game on Permutation
data structures
,
dp
,
games
,
greedy
1400
x12396
841B
Godsend
games
,
math
1100
x11964
1537D
Deleting Divisors
games
,
math
,
number theory
1700
x11850
1155B
Game with Telephone Numbers
games
,
greedy
,
implementation
1200
x11716
616B
Dinner with Emma
games
,
greedy
1000
x11275
1914E2
Game with Marbles (Hard Version)
games
,
greedy
,
sortings
1400
x11216
1914E1
Game with Marbles (Easy Version)
brute force
,
games
,
greedy
,
sortings
1400
x11118
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x10917
1396B
Stoned Game
brute force
,
constructive algorithms
,
games
,
greedy
1800
x10873
1740C
Bricks and Bags
constructive algorithms
,
games
,
greedy
,
sortings
1400
x10565
1867C
Salyg1n and the MEX Game
constructive algorithms
,
data structures
,
games
,
greedy
,
interactive
1300
x10534
1738C
Even Number Addicts
dp
,
games
,
greedy
,
math
1500
x10534
1968D
Permutation Game
brute force
,
dfs and similar
,
games
,
graphs
,
greedy
,
math
x9900
1220C
Substring Game in the Lesson
games
,
greedy
,
strings
1300
x9894
493D
Vasya and Chess
constructive algorithms
,
games
,
math
1700
x9514
1451D
Circle Game
games
,
geometry
,
math
1700
x9259
1965A
Everything Nim
games
,
greedy
,
math
,
sortings
1400
x9180
705B
Spider Man
games
,
math
1100
x9040
1921E
Eat the Chip
brute force
,
games
,
greedy
,
math
1600
x8889
1739C
Card Game
combinatorics
,
constructive algorithms
,
dp
,
games
1500
x8698
914B
Conan and Agasa play a Card Game
games
,
greedy
,
implementation
1200
x8502
346A
Alice and Bob
games
,
math
,
number theory
1600
x8448
630R
Game
games
,
math
1200
x8300
150A
Win or Freeze
games
,
math
,
number theory
1400
x7571
1527B2
Palindrome Game (hard version)
constructive algorithms
,
games
1900
x7537
1404B
Tree Tag
dfs and similar
,
dp
,
games
,
trees
1900
x7080
257B
Playing Cubes
games
,
greedy
,
implementation
1300
x6865
3C
Tic-tac-toe
brute force
,
games
,
implementation
1800
x6865
1728D
Letter Picking
constructive algorithms
,
dp
,
games
,
two pointers
1800
x6856
1503B
3-Coloring
constructive algorithms
,
games
,
interactive
1700
x6837
148D
Bag of mice
dp
,
games
,
math
,
probabilities
1800
x6774
934A
A Compatible Pair
brute force
,
games
1400
x6701
1873H
Mad City
dfs and similar
,
dsu
,
games
,
graphs
,
shortest paths
,
trees
1700
x6561
1772E
Permutation Game
games
1700
x6386
1425A
Arena of Greed
games
,
greedy
1400
x6351
1194D
1-2-K Game
games
,
math
1700
x6243
1190B
Tokitsukaze, CSL and Stone Game
games
1800
x6192
197A
Plate Game
constructive algorithms
,
games
,
math
1600
x6032
1215D
Ticket Game
games
,
greedy
,
math
1700
x5969
1495B
Let's Go Hiking
games
,
greedy
1900
x5841
1955F
Unfair Game
dp
,
games
,
greedy
,
math
,
schedules
1800
x5754
455B
A Lot of Games
dfs and similar
,
dp
,
games
,
implementation
,
strings
,
trees
1900
x5648
1737C
Ela and Crickets
constructive algorithms
,
games
,
implementation
,
math
1500
x5556
1033C
Permutation Game
brute force
,
dp
,
games
1600
x5370
1372D
Omkar and Circle
brute force
,
dp
,
games
,
greedy
2100
x5290
859C
Pie Rules
dp
,
games
1500
x5264
1383B
GameGame
bitmasks
,
constructive algorithms
,
dp
,
games
,
greedy
,
math
1900
x4761
980C
Posterized
games
,
greedy
1700
x3722
1665D
GCD Guess
bitmasks
,
chinese remainder theorem
,
constructive algorithms
,
games
,
interactive
,
math
,
number theory
2000
x3691
1770D
Koxia and Game
constructive algorithms
,
data structures
,
dfs and similar
,
dsu
,
flows
,
games
,
graph matchings
,
graphs
,
implementation
2000
x3665
1333D
Challenges in school №41
brute force
,
constructive algorithms
,
games
,
graphs
,
greedy
,
implementation
,
sortings
2100
x3646
917B
MADMAX
dfs and similar
,
dp
,
games
,
graphs
1700
x3480
1147C
Thanos Nim
games
2000
x3148
388C
Fox and Card Game
games
,
greedy
,
sortings
2000
x3086
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