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Before contest
Codeforces Round 950 (Div. 3)
46:03:57
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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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Custom test
Problems
#
Name
1411G
No Game No Life
bitmasks
,
games
,
math
,
matrices
2700
x581
1404B
Tree Tag
dfs and similar
,
dp
,
games
,
trees
1900
x7110
1402C
Star Trek
*special problem
,
combinatorics
,
dfs and similar
,
dp
,
games
,
graphs
,
matrices
,
trees
2600
x199
1398B
Substring Removal Game
games
,
greedy
,
sortings
800
x24130
1396B
Stoned Game
brute force
,
constructive algorithms
,
games
,
greedy
1800
x10948
1383B
GameGame
bitmasks
,
constructive algorithms
,
dp
,
games
,
greedy
,
math
1900
x4780
1382B
Sequential Nim
dp
,
games
1100
x23979
1375F
Integer Game
constructive algorithms
,
games
,
interactive
,
math
2600
x1941
1373B
01 Game
games
900
x33227
1372D
Omkar and Circle
brute force
,
dp
,
games
,
greedy
2100
x5305
1370C
Number Game
games
,
math
,
number theory
1400
x23669
1369F
BareLee
dfs and similar
,
dp
,
games
2700
x599
1368F
Lamps on a Circle
games
,
implementation
,
interactive
,
math
2600
x850
1365A
Matrix Game
games
,
greedy
,
implementation
1100
x23617
1363C
Game On Leaves
games
,
trees
1600
x17931
1346H
Game with Segments
*special problem
,
data structures
,
games
2700
x47
1333D
Challenges in school №41
brute force
,
constructive algorithms
,
games
,
graphs
,
greedy
,
implementation
,
sortings
2100
x3699
1312F
Attack on Red Kingdom
games
,
two pointers
2500
x719
1270A
Card Game
games
,
greedy
,
math
800
x16722
1221E
Game With String
games
2500
x1024
1220C
Substring Game in the Lesson
games
,
greedy
,
strings
1300
x10063
1215D
Ticket Game
games
,
greedy
,
math
1700
x5982
1197F
Coloring Game
dp
,
games
,
matrices
2700
x242
1194D
1-2-K Game
games
,
math
1700
x6361
1190C
Tokitsukaze and Duel
brute force
,
games
,
greedy
2300
x1930
1190B
Tokitsukaze, CSL and Stone Game
games
1800
x6337
1155B
Game with Telephone Numbers
games
,
greedy
,
implementation
1200
x11748
1149E
Election Promises
games
,
graphs
3200
x484
1147F
Zigzag Game
games
,
interactive
3500
x240
1147C
Thanos Nim
games
2000
x3165
1110G
Tree-Tac-Toe
constructive algorithms
,
games
,
trees
3100
x609
1102C
Doors Breaking and Repairing
games
1200
x12823
1100D
Dasha and Chess
constructive algorithms
,
games
,
interactive
2500
x837
1099F
Cookies
binary search
,
data structures
,
dfs and similar
,
dp
,
games
,
trees
2400
x909
1091H
New Year and the Tricolore Recreation
games
3200
x426
1090G
Combostone
games
,
implementation
2500
x105
1076G
Array Game
data structures
,
games
3000
x459
1037G
A Game on Strings
games
3200
x297
1033G
Chip Game
games
3500
x359
1033C
Permutation Game
brute force
,
dp
,
games
1600
x5396
980C
Posterized
games
,
greedy
1700
x3727
959A
Mahmoud and Ehab and the even-odd game
games
,
math
800
x44598
936B
Sleepy Game
dfs and similar
,
dp
,
games
,
graphs
2100
x3048
934A
A Compatible Pair
brute force
,
games
1400
x6715
930D
Game with Tokens
data structures
,
games
,
implementation
2500
x395
919F
A Game With Numbers
games
,
graphs
,
shortest paths
2600
x327
917B
MADMAX
dfs and similar
,
dp
,
games
,
graphs
1700
x3494
914H
Ember and Storm's Tree Game
combinatorics
,
dp
,
games
,
trees
3400
x233
914B
Conan and Agasa play a Card Game
games
,
greedy
,
implementation
1200
x8514
896B
Ithea Plays With Chtholly
binary search
,
constructive algorithms
,
games
,
greedy
,
interactive
2000
x2055
859C
Pie Rules
dp
,
games
1500
x5281
850C
Arpa and a game with Mojtaba
bitmasks
,
dp
,
games
2200
x1379
841B
Godsend
games
,
math
1100
x12032
838C
Future Failure
dp
,
games
2800
x281
832A
Sasha and Sticks
games
,
math
800
x20419
819A
Mister B and Boring Game
games
,
greedy
2200
x351
812E
Sagheer and Apple Tree
games
,
trees
2300
x1019
794E
Choosing Carrot
games
,
math
2800
x671
794C
Naming Company
games
,
greedy
,
sortings
1800
x3042
786A
Berzerk
dfs and similar
,
dp
,
games
2000
x2310
768E
Game of Stones
bitmasks
,
dp
,
games
2100
x2654
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x10972
731E
Funny Game
dp
,
games
2200
x1392
725F
Family Photos
games
,
greedy
2900
x486
717D
Dexterina’s Lab
games
,
matrices
,
probabilities
1900
x1380
705B
Spider Man
games
,
math
1100
x9056
630R
Game
games
,
math
1200
x8341
616B
Dinner with Emma
games
,
greedy
1000
x11334
603C
Lieges of Legendre
games
,
math
2200
x1809
594A
Warrior and Archer
games
2300
x1697
570B
Simple Game
constructive algorithms
,
games
,
greedy
,
implementation
,
math
1300
x15800
549C
The Game Of Parity
games
2200
x1719
546C
Soldier and Cards
brute force
,
dfs and similar
,
games
1400
x17118
536D
Tavas in Kansas
dp
,
games
2900
x712
533C
Board Game
games
,
greedy
,
implementation
,
math
1700
x2163
520D
Cubes
games
,
greedy
,
implementation
2100
x1534
494E
Sharti
data structures
,
games
3200
x309
493D
Vasya and Chess
constructive algorithms
,
games
,
math
1700
x9537
457F
An easy problem about trees
dp
,
games
,
greedy
,
trees
3200
x104
455B
A Lot of Games
dfs and similar
,
dp
,
games
,
implementation
,
strings
,
trees
1900
x5710
388C
Fox and Card Game
games
,
greedy
,
sortings
2000
x3103
377C
Captains Mode
bitmasks
,
dp
,
games
2200
x1108
354B
Game with Strings
bitmasks
,
dp
,
games
2400
x449
346A
Alice and Bob
games
,
math
,
number theory
1600
x8479
335C
More Reclamation
games
2100
x519
317D
Game with Powers
dp
,
games
2300
x976
305E
Playing with String
games
2300
x605
293A
Weird Game
games
,
greedy
1500
x2820
282D
Yet Another Number Game
dp
,
games
2100
x1388
279E
Beautiful Decomposition
dp
,
games
,
greedy
,
number theory
1900
x1412
277C
Game
games
,
implementation
2400
x448
276B
Little Girl and Game
games
,
greedy
1300
x27413
273E
Dima and Game
dp
,
games
2600
x362
257B
Playing Cubes
games
,
greedy
,
implementation
1300
x6883
255E
Furlo and Rublo and Game
games
,
implementation
,
math
2200
x832
197A
Plate Game
constructive algorithms
,
games
,
math
1600
x6055
167C
Wizards and Numbers
games
,
math
2300
x658
154D
Flatland Fencing
games
,
math
2400
x419
150A
Win or Freeze
games
,
math
,
number theory
1400
x7607
148D
Bag of mice
dp
,
games
,
math
,
probabilities
1800
x6834
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