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Codeforces Round 940 (Div. 2) and CodeCraft-23
42:13:21
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Difficulty:
—
greedy
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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Status
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Custom test
Problems
#
Name
1660C
Get an Even String
dp
,
greedy
,
strings
1300
x18667
1341B
Nastya and Door
greedy
,
implementation
1300
x18937
519C
A and B and Team Training
greedy
,
implementation
,
math
,
number theory
1300
x19300
1476B
Inflation
binary search
,
brute force
,
greedy
,
math
1300
x19424
1371C
A Cookie for You
greedy
,
implementation
,
math
1300
x20134
1285B
Just Eat It!
dp
,
greedy
,
implementation
1300
x20848
1470A
Strange Birthday Party
binary search
,
dp
,
greedy
,
sortings
,
two pointers
1300
x21144
893C
Rumor
dfs and similar
,
graphs
,
greedy
1300
x21462
508B
Anton and currency you all know
greedy
,
math
,
strings
1300
x22026
1367C
Social Distance
constructive algorithms
,
greedy
,
math
1300
x22558
545D
Queue
greedy
,
implementation
,
sortings
1300
x23878
1372B
Omkar and Last Class of Math
greedy
,
math
,
number theory
1300
x25994
276B
Little Girl and Game
games
,
greedy
1300
x27094
1294C
Product of Three Numbers
greedy
,
math
,
number theory
1300
x32063
478B
Random Teams
combinatorics
,
constructive algorithms
,
greedy
,
math
1300
x35104
1769C1
Подкрутка I
*special problem
,
brute force
,
dp
,
greedy
1200
x926
176A
Trading Business
greedy
,
sortings
1200
x1401
802M
April Fools' Problem (easy)
greedy
,
sortings
1200
x3009
69B
Bets
greedy
,
implementation
1200
x3180
769B
News About Credit
*special problem
,
greedy
,
two pointers
1200
x3230
645B
Mischievous Mess Makers
greedy
,
math
1200
x3329
101A
Homework
greedy
1200
x3685
33A
What is for dinner?
greedy
,
implementation
1200
x3835
79A
Bus Game
greedy
1200
x3960
774C
Maximum Number
*special problem
,
constructive algorithms
,
greedy
,
implementation
1200
x4017
401B
Sereja and Contests
greedy
,
implementation
,
math
1200
x4375
23A
You're Given a String...
brute force
,
greedy
1200
x5047
186B
Growing Mushrooms
greedy
,
sortings
1200
x5275
569B
Inventory
greedy
,
math
1200
x6941
145A
Lucky Conversion
greedy
,
implementation
1200
x6949
424B
Megacity
binary search
,
greedy
,
implementation
,
sortings
1200
x7319
1013B
And
greedy
1200
x7456
903B
The Modcrab
greedy
,
implementation
1200
x7523
1084B
Kvass and the Fair Nut
greedy
,
implementation
1200
x7680
1130B
Two Cakes
greedy
1200
x7693
990B
Micro-World
greedy
,
sortings
1200
x7973
940A
Points on the line
brute force
,
greedy
,
sortings
1200
x8122
1051A
Vasya And Password
greedy
,
implementation
,
strings
1200
x8300
914B
Conan and Agasa play a Card Game
games
,
greedy
,
implementation
1200
x8485
660A
Co-prime Array
greedy
,
implementation
,
math
,
number theory
1200
x8503
754A
Lesha and array splitting
constructive algorithms
,
greedy
,
implementation
1200
x8524
1000A
Codehorses T-shirts
greedy
,
implementation
1200
x8566
583B
Robot's Task
greedy
,
implementation
1200
x8608
892B
Wrath
greedy
,
implementation
,
two pointers
1200
x8650
708A
Letters Cyclic Shift
constructive algorithms
,
greedy
,
implementation
,
strings
1200
x8838
1153B
Serval and Toy Bricks
constructive algorithms
,
greedy
1200
x8882
574A
Bear and Elections
greedy
,
implementation
1200
x8957
959B
Mahmoud and Ehab and the message
dsu
,
greedy
,
implementation
1200
x9062
870B
Maximum of Maximums of Minimums
greedy
1200
x9089
732C
Sanatorium
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
1200
x9461
385B
Bear and Strings
brute force
,
greedy
,
implementation
,
math
,
strings
1200
x9489
482A
Diverse Permutation
constructive algorithms
,
greedy
1200
x9497
1023C
Bracket Subsequence
greedy
1200
x9578
554B
Ohana Cleans Up
brute force
,
greedy
,
strings
1200
x9659
1315C
Restoring Permutation
greedy
1200
x9733
489A
SwapSort
greedy
,
implementation
,
sortings
1200
x9792
625B
War of the Corporations
constructive algorithms
,
greedy
,
strings
1200
x10047
902B
Coloring a Tree
dfs and similar
,
dsu
,
greedy
1200
x10433
1091B
New Year and the Treasure Geolocation
brute force
,
constructive algorithms
,
greedy
,
implementation
1200
x10465
1799B
Equalize by Divide
brute force
,
constructive algorithms
,
greedy
,
math
1200
x10772
743A
Vladik and flights
constructive algorithms
,
greedy
,
implementation
1200
x10840
262B
Roma and Changing Signs
greedy
1200
x10871
1951B
Battle Cows
binary search
,
data structures
,
greedy
1200
x10957
1581B
Diameter of Graph
constructive algorithms
,
graphs
,
greedy
,
math
1200
x11004
1185C1
Exam in BerSU (easy version)
greedy
,
sortings
1200
x11045
1903B
StORage room
bitmasks
,
brute force
,
constructive algorithms
,
greedy
1200
x11176
1305B
Kuroni and Simple Strings
constructive algorithms
,
greedy
,
strings
,
two pointers
1200
x11241
651B
Beautiful Paintings
greedy
,
sortings
1200
x11365
659C
Tanya and Toys
greedy
,
implementation
1200
x11373
1608B
Build the Permutation
constructive algorithms
,
greedy
1200
x11409
432B
Football Kit
brute force
,
greedy
,
implementation
1200
x11431
779C
Dishonest Sellers
constructive algorithms
,
greedy
,
sortings
1200
x11609
1155B
Game with Telephone Numbers
games
,
greedy
,
implementation
1200
x11640
387B
George and Round
brute force
,
greedy
,
two pointers
1200
x11895
342A
Xenia and Divisors
greedy
,
implementation
1200
x12081
1140D
Minimum Triangulation
dp
,
greedy
,
math
1200
x12353
1834C
Game with Reversing
games
,
greedy
,
math
,
strings
1200
x12547
998B
Cutting
dp
,
greedy
,
sortings
1200
x12721
1006B
Polycarp's Practice
greedy
,
implementation
,
sortings
1200
x12752
1214C
Bad Sequence
data structures
,
greedy
1200
x12800
1076A
Minimizing the String
greedy
,
strings
1200
x12811
6C
Alice, Bob and Chocolate
greedy
,
two pointers
1200
x12869
1207B
Square Filling
constructive algorithms
,
greedy
,
implementation
1200
x12932
1517B
Morning Jogging
constructive algorithms
,
greedy
,
sortings
1200
x13041
1848B
Vika and the Bridge
binary search
,
data structures
,
greedy
,
implementation
,
math
,
sortings
1200
x13226
1870B
Friendly Arrays
bitmasks
,
greedy
,
math
1200
x13256
1954C
Long Multiplication
greedy
,
math
,
number theory
1200
x13328
1245B
Restricted RPS
constructive algorithms
,
dp
,
greedy
1200
x13421
1272B
Snow Walking Robot
constructive algorithms
,
greedy
,
implementation
1200
x13464
298B
Sail
brute force
,
greedy
,
implementation
1200
x13481
1200B
Block Adventure
dp
,
greedy
1200
x13574
1205A
Almost Equal
constructive algorithms
,
greedy
,
math
1200
x13798
1530C
Pursuit
binary search
,
brute force
,
greedy
,
sortings
1200
x14205
1582C
Grandma Capa Knits a Scarf
brute force
,
data structures
,
greedy
,
strings
,
two pointers
1200
x14207
1704C
Virus
greedy
,
implementation
,
sortings
1200
x14288
1131C
Birthday
binary search
,
greedy
,
sortings
1200
x14369
1826A
Trust Nobody
brute force
,
greedy
,
implementation
,
sortings
1200
x14437
1149A
Prefix Sum Primes
constructive algorithms
,
greedy
,
math
,
number theory
1200
x14514
1277B
Make Them Odd
greedy
,
number theory
1200
x14586
1738B
Prefix Sum Addicts
constructive algorithms
,
greedy
,
math
,
sortings
1200
x14696
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