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Codeforces Round 940 (Div. 2) and CodeCraft-23
3 days
Register now »
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→ Filter Problems
Difficulty:
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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
1628D2
Game on Sum (Hard Version)
combinatorics
,
dp
,
games
,
math
2400
x1965
896B
Ithea Plays With Chtholly
binary search
,
constructive algorithms
,
games
,
greedy
,
interactive
2000
x2044
533C
Board Game
games
,
greedy
,
implementation
,
math
1700
x2139
15C
Industrial Nim
games
2000
x2153
786A
Berzerk
dfs and similar
,
dp
,
games
2000
x2302
1864E
Guess Game
bitmasks
,
data structures
,
games
,
math
,
probabilities
,
sortings
,
strings
,
trees
2100
x2454
768E
Game of Stones
bitmasks
,
dp
,
games
2100
x2626
120E
Put Knight!
games
,
math
1400
x2639
293A
Weird Game
games
,
greedy
1500
x2794
1605D
Treelabeling
bitmasks
,
constructive algorithms
,
dfs and similar
,
games
,
greedy
,
implementation
,
trees
2100
x2830
1147C
Thanos Nim
games
2000
x2996
1628D1
Game on Sum (Easy Version)
combinatorics
,
dp
,
games
,
math
2100
x3003
794C
Naming Company
games
,
greedy
,
sortings
1800
x3017
936B
Sleepy Game
dfs and similar
,
dp
,
games
,
graphs
2100
x3024
388C
Fox and Card Game
games
,
greedy
,
sortings
2000
x3072
917B
MADMAX
dfs and similar
,
dp
,
games
,
graphs
1700
x3473
1333D
Challenges in school №41
brute force
,
constructive algorithms
,
games
,
graphs
,
greedy
,
implementation
,
sortings
2100
x3626
1770D
Koxia and Game
constructive algorithms
,
data structures
,
dfs and similar
,
dsu
,
flows
,
games
,
graph matchings
,
graphs
,
implementation
2000
x3644
1665D
GCD Guess
bitmasks
,
chinese remainder theorem
,
constructive algorithms
,
games
,
interactive
,
math
,
number theory
2000
x3670
980C
Posterized
games
,
greedy
1700
x3707
1383B
GameGame
bitmasks
,
constructive algorithms
,
dp
,
games
,
greedy
,
math
1900
x4736
1955F
Unfair Game
dp
,
games
,
greedy
,
math
,
schedules
1800
x4971
859C
Pie Rules
dp
,
games
1500
x5228
1372D
Omkar and Circle
brute force
,
dp
,
games
,
greedy
2100
x5282
1033C
Permutation Game
brute force
,
dp
,
games
1600
x5361
1737C
Ela and Crickets
constructive algorithms
,
games
,
implementation
,
math
1500
x5536
455B
A Lot of Games
dfs and similar
,
dp
,
games
,
implementation
,
strings
,
trees
1900
x5633
1495B
Let's Go Hiking
games
,
greedy
1900
x5825
1215D
Ticket Game
games
,
greedy
,
math
1700
x5959
197A
Plate Game
constructive algorithms
,
games
,
math
1600
x6020
1190B
Tokitsukaze, CSL and Stone Game
games
1800
x6167
1194D
1-2-K Game
games
,
math
1700
x6176
1425A
Arena of Greed
games
,
greedy
1400
x6324
1772E
Permutation Game
games
1700
x6342
1873H
Mad City
dfs and similar
,
dsu
,
games
,
graphs
,
shortest paths
,
trees
1700
x6472
148D
Bag of mice
dp
,
games
,
math
,
probabilities
1800
x6687
934A
A Compatible Pair
brute force
,
games
1400
x6692
1728D
Letter Picking
constructive algorithms
,
dp
,
games
,
two pointers
1800
x6802
1503B
3-Coloring
constructive algorithms
,
games
,
interactive
1700
x6824
3C
Tic-tac-toe
brute force
,
games
,
implementation
1800
x6841
257B
Playing Cubes
games
,
greedy
,
implementation
1300
x6844
1404B
Tree Tag
dfs and similar
,
dp
,
games
,
trees
1900
x7055
1527B2
Palindrome Game (hard version)
constructive algorithms
,
games
1900
x7507
150A
Win or Freeze
games
,
math
,
number theory
1400
x7553
630R
Game
games
,
math
1200
x8277
346A
Alice and Bob
games
,
math
,
number theory
1600
x8436
914B
Conan and Agasa play a Card Game
games
,
greedy
,
implementation
1200
x8483
1739C
Card Game
combinatorics
,
constructive algorithms
,
dp
,
games
1500
x8664
1921E
Eat the Chip
brute force
,
games
,
greedy
,
math
1600
x8752
705B
Spider Man
games
,
math
1100
x9021
1451D
Circle Game
games
,
geometry
,
math
1700
x9228
493D
Vasya and Chess
constructive algorithms
,
games
,
math
1700
x9467
1220C
Substring Game in the Lesson
games
,
greedy
,
strings
1300
x9880
1738C
Even Number Addicts
dp
,
games
,
greedy
,
math
1500
x10444
1867C
Salyg1n and the MEX Game
constructive algorithms
,
data structures
,
games
,
greedy
,
interactive
1300
x10472
1740C
Bricks and Bags
constructive algorithms
,
games
,
greedy
,
sortings
1400
x10510
1396B
Stoned Game
brute force
,
constructive algorithms
,
games
,
greedy
1800
x10831
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x10901
1914E1
Game with Marbles (Easy Version)
brute force
,
games
,
greedy
,
sortings
1400
x10984
1914E2
Game with Marbles (Hard Version)
games
,
greedy
,
sortings
1400
x11061
616B
Dinner with Emma
games
,
greedy
1000
x11247
1155B
Game with Telephone Numbers
games
,
greedy
,
implementation
1200
x11614
1537D
Deleting Divisors
games
,
math
,
number theory
1700
x11808
841B
Godsend
games
,
math
1100
x11935
1860C
Game on Permutation
data structures
,
dp
,
games
,
greedy
1400
x12301
1834C
Game with Reversing
games
,
greedy
,
math
,
strings
1200
x12539
1102C
Doors Breaking and Repairing
games
1200
x12733
1929C
Sasha and the Casino
binary search
,
brute force
,
constructive algorithms
,
games
,
greedy
,
math
1400
x12981
1931E
Anna and the Valentine's Day Gift
games
,
greedy
,
math
,
sortings
1400
x12997
1749C
Number Game
binary search
,
data structures
,
games
,
greedy
,
implementation
1400
x13223
1943A
MEX Game 1
games
,
greedy
1300
x14582
1956B
Nene and the Card Game
games
,
greedy
800
x15589
1874A
Jellyfish and Game
brute force
,
games
,
greedy
,
implementation
1200
x15643
570B
Simple Game
constructive algorithms
,
games
,
greedy
,
implementation
,
math
1300
x15719
1956A
Nene's Game
binary search
,
brute force
,
data structures
,
games
,
greedy
800
x15792
1672A
Log Chopping
games
,
implementation
,
math
800
x15812
1695A
Subrectangle Guess
games
800
x16092
1848A
Vika and Her Friends
games
,
math
900
x16131
1627B
Not Sitting
games
,
greedy
,
sortings
1300
x16228
1916C
Training Before the Olympiad
constructive algorithms
,
games
,
greedy
,
implementation
,
math
1200
x16513
1270A
Card Game
games
,
greedy
,
math
800
x16598
546C
Soldier and Cards
brute force
,
dfs and similar
,
games
1400
x17011
1363C
Game On Leaves
games
,
trees
1600
x17750
1695B
Circle Game
games
,
greedy
1000
x17970
1673A
Subtle Substring Subtraction
games
,
greedy
,
strings
800
x18191
1920B
Summation Game
games
,
greedy
,
math
,
sortings
1100
x19042
1455C
Ping-pong
constructive algorithms
,
games
,
math
1100
x19197
1419A
Digit Game
games
,
greedy
,
implementation
900
x19223
1842A
Tenzing and Tsondu
games
,
math
800
x19388
1747C
Swap Game
games
1200
x20196
832A
Sasha and Sticks
games
,
math
800
x20305
1681A
Game with Cards
games
,
greedy
800
x20692
1684A
Digit Minimization
constructive algorithms
,
games
,
math
,
strings
800
x23433
1370C
Number Game
games
,
math
,
number theory
1400
x23447
1365A
Matrix Game
games
,
greedy
,
implementation
1100
x23521
1844A
Subtraction Game
constructive algorithms
,
games
800
x23748
1382B
Sequential Nim
dp
,
games
1100
x23832
1398B
Substring Removal Game
games
,
greedy
,
sortings
800
x24022
1527B1
Palindrome Game (easy version)
constructive algorithms
,
games
1200
x24035
1841A
Game with Board
constructive algorithms
,
games
800
x24147
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