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Codeforces Round (Div. 2)
5 days
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*has extra registration
→ 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
communication
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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Status
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Custom test
Problems
#
Name
1383B
GameGame
bitmasks
,
constructive algorithms
,
dp
,
games
,
greedy
,
math
1900
x5856
1382B
Sequential Nim
dp
,
games
1100
x26624
1375F
Integer Game
constructive algorithms
,
games
,
interactive
,
math
2600
x2609
1373B
01 Game
games
900
x58025
1372D
Omkar and Circle
brute force
,
dp
,
games
,
greedy
2100
x5980
1370C
Number Game
games
,
math
,
number theory
1400
x27969
1369F
BareLee
dfs and similar
,
dp
,
games
2700
x779
1368F
Lamps on a Circle
games
,
implementation
,
interactive
,
math
2600
x1137
1365A
Matrix Game
games
,
greedy
,
implementation
1100
x25315
1363C
Game On Leaves
games
,
trees
1600
x21830
1346H
Game with Segments
*special problem
,
data structures
,
games
2700
x65
1333D
Challenges in school №41
brute force
,
constructive algorithms
,
games
,
graphs
,
greedy
,
implementation
,
sortings
2100
x4194
1312F
Attack on Red Kingdom
games
,
two pointers
2500
x1100
1270A
Card Game
games
,
greedy
,
math
800
x17947
1221E
Game With String
games
2500
x1205
1220C
Substring Game in the Lesson
games
,
greedy
,
strings
1300
x10884
1215D
Ticket Game
games
,
greedy
,
math
1700
x6700
1197F
Coloring Game
dp
,
games
,
matrices
2700
x385
1194D
1-2-K Game
games
,
math
1700
x7511
1190C
Tokitsukaze and Duel
brute force
,
games
,
greedy
2300
x2354
1190B
Tokitsukaze, CSL and Stone Game
games
1800
x6916
1155B
Game with Telephone Numbers
games
,
greedy
,
implementation
1200
x12844
1149E
Election Promises
games
,
graphs
3200
x918
1147F
Zigzag Game
games
,
interactive
3500
x408
1147C
Thanos Nim
games
2000
x3793
1110G
Tree-Tac-Toe
constructive algorithms
,
games
,
trees
3100
x785
1102C
Doors Breaking and Repairing
games
1200
x14419
1100D
Dasha and Chess
constructive algorithms
,
games
,
interactive
2500
x973
1099F
Cookies
binary search
,
data structures
,
dfs and similar
,
dp
,
games
,
trees
2400
x1101
1091H
New Year and the Tricolore Recreation
games
3200
x587
1090G
Combostone
games
,
implementation
2500
x125
1076G
Array Game
data structures
,
games
3000
x813
1037G
A Game on Strings
games
3200
x394
1033G
Chip Game
games
3500
x672
1033C
Permutation Game
brute force
,
dp
,
games
1600
x6453
980C
Posterized
games
,
greedy
1700
x3965
959A
Mahmoud and Ehab and the even-odd game
games
,
math
800
x57330
936B
Sleepy Game
dfs and similar
,
dp
,
games
,
graphs
2100
x3515
934A
A Compatible Pair
brute force
,
games
1400
x7707
930D
Game with Tokens
data structures
,
games
,
implementation
2500
x468
919F
A Game With Numbers
games
,
graphs
,
shortest paths
2600
x475
917B
MADMAX
dfs and similar
,
dp
,
games
,
graphs
1700
x4090
914H
Ember and Storm's Tree Game
combinatorics
,
dp
,
games
,
trees
3400
x352
914B
Conan and Agasa play a Card Game
games
,
greedy
,
implementation
1200
x9150
896B
Ithea Plays With Chtholly
binary search
,
constructive algorithms
,
games
,
greedy
,
interactive
2000
x2370
859C
Pie Rules
dp
,
games
1500
x6311
850C
Arpa and a game with Mojtaba
bitmasks
,
dp
,
games
2200
x2038
841B
Godsend
games
,
math
1100
x13330
838C
Future Failure
dp
,
games
2800
x453
832A
Sasha and Sticks
games
,
math
800
x22421
820C
Mister B and Boring Game
games
,
greedy
2200
x537
812E
Sagheer and Apple Tree
games
,
trees
2300
x1433
794E
Choosing Carrot
games
,
math
2800
x1244
794C
Naming Company
games
,
greedy
,
sortings
1800
x3365
786A
Berzerk
dfs and similar
,
dp
,
games
2000
x2931
768E
Game of Stones
bitmasks
,
dp
,
games
2100
x3764
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x13173
731E
Funny Game
dp
,
games
2200
x1946
725F
Family Photos
games
,
greedy
2900
x808
717D
Dexterina’s Lab
games
,
matrices
,
probabilities
1900
x1661
705B
Spider Man
games
,
math
1100
x9648
630R
Game
games
,
math
1200
x9783
616B
Dinner with Emma
games
,
greedy
1000
x13423
603C
Lieges of Legendre
games
,
math
2200
x2141
594A
Warrior and Archer
games
2300
x1915
570B
Simple Game
constructive algorithms
,
games
,
greedy
,
implementation
,
math
1300
x17050
549C
The Game Of Parity
games
2200
x1873
546C
Soldier and Cards
brute force
,
dfs and similar
,
games
1400
x19802
536D
Tavas in Kansas
dp
,
games
2900
x850
533C
Board Game
games
,
greedy
,
implementation
,
math
1700
x2476
520D
Cubes
games
,
greedy
,
implementation
2100
x1707
494E
Sharti
data structures
,
games
3200
x554
493D
Vasya and Chess
constructive algorithms
,
games
,
math
1700
x10340
457F
An easy problem about trees
dp
,
games
,
greedy
,
trees
3200
x130
455B
A Lot of Games
dfs and similar
,
dp
,
games
,
implementation
,
strings
,
trees
1900
x7332
388C
Fox and Card Game
games
,
greedy
,
sortings
2000
x3985
377C
Captains Mode
bitmasks
,
dp
,
games
2200
x1446
354B
Game with Strings
bitmasks
,
dp
,
games
2400
x544
346A
Alice and Bob
games
,
math
,
number theory
1600
x9502
335C
More Reclamation
games
2100
x644
317D
Game with Powers
dp
,
games
2300
x1330
305E
Playing with String
games
2300
x810
293A
Weird Game
games
,
greedy
1500
x3250
282D
Yet Another Number Game
dp
,
games
2100
x1712
279E
Beautiful Decomposition
dp
,
games
,
greedy
,
number theory
1900
x1647
277C
Game
games
,
implementation
2400
x515
276B
Little Girl and Game
games
,
greedy
1300
x33054
273E
Dima and Game
dp
,
games
2600
x412
257B
Playing Cubes
games
,
greedy
,
implementation
1300
x7903
255E
Furlo and Rublo and Game
games
,
implementation
,
math
2200
x1035
197A
Plate Game
constructive algorithms
,
games
,
math
1600
x6977
167C
Wizards and Numbers
games
,
math
2300
x783
154D
Flatland Fencing
games
,
math
2400
x530
150A
Win or Freeze
games
,
math
,
number theory
1400
x8828
148D
Bag of mice
dp
,
games
,
math
,
probabilities
1800
x9811
142D
Help Shrek and Donkey 2
games
2600
x437
138D
World of Darkraft
dp
,
games
2500
x644
135C
Zero-One
constructive algorithms
,
games
,
greedy
1900
x1469
120E
Put Knight!
games
,
math
1400
x3042
98E
Help Shrek and Donkey
dp
,
games
,
math
,
probabilities
2700
x577
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