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Codeforces Round 940 (Div. 2) and CodeCraft-23
3 days
Register now »
*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
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
1373B
01 Game
games
900
x32536
1372D
Omkar and Circle
brute force
,
dp
,
games
,
greedy
2100
x5282
1370C
Number Game
games
,
math
,
number theory
1400
x23448
1369F
BareLee
dfs and similar
,
dp
,
games
2700
x595
1368F
Lamps on a Circle
games
,
implementation
,
interactive
,
math
2600
x841
1365A
Matrix Game
games
,
greedy
,
implementation
1100
x23521
1363C
Game On Leaves
games
,
trees
1600
x17753
1346H
Game with Segments
*special problem
,
data structures
,
games
2700
x45
1333D
Challenges in school №41
brute force
,
constructive algorithms
,
games
,
graphs
,
greedy
,
implementation
,
sortings
2100
x3626
1312F
Attack on Red Kingdom
games
,
two pointers
2500
x659
1270A
Card Game
games
,
greedy
,
math
800
x16598
1221E
Game With String
games
2500
x1014
1220C
Substring Game in the Lesson
games
,
greedy
,
strings
1300
x9880
1215D
Ticket Game
games
,
greedy
,
math
1700
x5959
1197F
Coloring Game
dp
,
games
,
matrices
2700
x236
1194D
1-2-K Game
games
,
math
1700
x6176
1190C
Tokitsukaze and Duel
brute force
,
games
,
greedy
2300
x1781
1190B
Tokitsukaze, CSL and Stone Game
games
1800
x6167
1155B
Game with Telephone Numbers
games
,
greedy
,
implementation
1200
x11614
1149E
Election Promises
games
,
graphs
3200
x456
1147F
Zigzag Game
games
,
interactive
3500
x235
1147C
Thanos Nim
games
2000
x2996
1110G
Tree-Tac-Toe
constructive algorithms
,
games
,
trees
3100
x572
1102C
Doors Breaking and Repairing
games
1200
x12733
1100D
Dasha and Chess
constructive algorithms
,
games
,
interactive
2500
x827
1099F
Cookies
binary search
,
data structures
,
dfs and similar
,
dp
,
games
,
trees
2400
x905
1091H
New Year and the Tricolore Recreation
games
3200
x398
1090G
Combostone
games
,
implementation
2500
x102
1076G
Array Game
data structures
,
games
3000
x434
1037G
A Game on Strings
games
3200
x294
1033G
Chip Game
games
3500
x353
1033C
Permutation Game
brute force
,
dp
,
games
1600
x5361
980C
Posterized
games
,
greedy
1700
x3707
959A
Mahmoud and Ehab and the even-odd game
games
,
math
800
x43806
936B
Sleepy Game
dfs and similar
,
dp
,
games
,
graphs
2100
x3024
934A
A Compatible Pair
brute force
,
games
1400
x6692
930D
Game with Tokens
data structures
,
games
,
implementation
2500
x392
919F
A Game With Numbers
games
,
graphs
,
shortest paths
2600
x320
917B
MADMAX
dfs and similar
,
dp
,
games
,
graphs
1700
x3473
914H
Ember and Storm's Tree Game
combinatorics
,
dp
,
games
,
trees
3400
x225
914B
Conan and Agasa play a Card Game
games
,
greedy
,
implementation
1200
x8484
896B
Ithea Plays With Chtholly
binary search
,
constructive algorithms
,
games
,
greedy
,
interactive
2000
x2044
859C
Pie Rules
dp
,
games
1500
x5228
850C
Arpa and a game with Mojtaba
bitmasks
,
dp
,
games
2200
x1348
841B
Godsend
games
,
math
1100
x11935
838C
Future Failure
dp
,
games
2800
x275
832A
Sasha and Sticks
games
,
math
800
x20306
819A
Mister B and Boring Game
games
,
greedy
2200
x290
812E
Sagheer and Apple Tree
games
,
trees
2300
x1013
794E
Choosing Carrot
games
,
math
2800
x658
794C
Naming Company
games
,
greedy
,
sortings
1800
x3017
786A
Berzerk
dfs and similar
,
dp
,
games
2000
x2302
768E
Game of Stones
bitmasks
,
dp
,
games
2100
x2626
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x10901
731E
Funny Game
dp
,
games
2200
x1373
725F
Family Photos
games
,
greedy
2900
x480
717D
Dexterina’s Lab
games
,
matrices
,
probabilities
1900
x1353
705B
Spider Man
games
,
math
1100
x9022
630R
Game
games
,
math
1200
x8277
616B
Dinner with Emma
games
,
greedy
1000
x11247
603C
Lieges of Legendre
games
,
math
2200
x1805
594A
Warrior and Archer
games
2300
x1692
570B
Simple Game
constructive algorithms
,
games
,
greedy
,
implementation
,
math
1300
x15720
549C
The Game Of Parity
games
2200
x1715
546C
Soldier and Cards
brute force
,
dfs and similar
,
games
1400
x17011
536D
Tavas in Kansas
dp
,
games
2900
x705
533C
Board Game
games
,
greedy
,
implementation
,
math
1700
x2139
520D
Cubes
games
,
greedy
,
implementation
2100
x1530
494E
Sharti
data structures
,
games
3200
x295
493D
Vasya and Chess
constructive algorithms
,
games
,
math
1700
x9468
457F
An easy problem about trees
dp
,
games
,
greedy
,
trees
3200
x102
455B
A Lot of Games
dfs and similar
,
dp
,
games
,
implementation
,
strings
,
trees
1900
x5633
388C
Fox and Card Game
games
,
greedy
,
sortings
2000
x3072
377C
Captains Mode
bitmasks
,
dp
,
games
2200
x1101
354B
Game with Strings
bitmasks
,
dp
,
games
2400
x447
346A
Alice and Bob
games
,
math
,
number theory
1600
x8436
335C
More Reclamation
games
2100
x514
317D
Game with Powers
dp
,
games
2300
x969
305E
Playing with String
games
2300
x594
293A
Weird Game
games
,
greedy
1500
x2794
282D
Yet Another Number Game
dp
,
games
2100
x1372
279E
Beautiful Decomposition
dp
,
games
,
greedy
,
number theory
1900
x1406
277C
Game
games
,
implementation
2400
x445
276B
Little Girl and Game
games
,
greedy
1300
x27089
273E
Dima and Game
dp
,
games
2600
x357
257B
Playing Cubes
games
,
greedy
,
implementation
1300
x6844
255E
Furlo and Rublo and Game
games
,
implementation
,
math
2200
x826
197A
Plate Game
constructive algorithms
,
games
,
math
1600
x6020
167C
Wizards and Numbers
games
,
math
2300
x655
154D
Flatland Fencing
games
,
math
2400
x414
150A
Win or Freeze
games
,
math
,
number theory
1400
x7554
148D
Bag of mice
dp
,
games
,
math
,
probabilities
1800
x6687
142D
Help Shrek and Donkey 2
games
2600
x336
138D
World of Darkraft
dp
,
games
2500
x467
135C
Zero-One
constructive algorithms
,
games
,
greedy
1900
x1312
120E
Put Knight!
games
,
math
1400
x2639
98E
Help Shrek and Donkey
dp
,
games
,
math
,
probabilities
2700
x441
87C
Interesting Game
dp
,
games
,
math
2000
x1299
78C
Beaver Game
dp
,
games
,
number theory
2000
x1796
74B
Train
dp
,
games
,
greedy
1500
x1485
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