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Codeforces Round 943 (Div. 3)
20:38:53
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Difficulty:
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binary search
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
1279B
Verse For Santa
binary search
,
brute force
,
implementation
1300
x13351
1561C
Deep Down Below
binary search
,
greedy
,
sortings
1300
x13468
1913C
Game with Multiset
binary search
,
bitmasks
,
brute force
,
greedy
1300
x13567
1873F
Money Trees
binary search
,
greedy
,
math
,
two pointers
1300
x13729
96B
Lucky Numbers (easy)
binary search
,
bitmasks
,
brute force
1300
x14405
1617C
Paprika and Permutation
binary search
,
greedy
,
math
,
sortings
1300
x14471
1736C1
Good Subarrays (Easy Version)
binary search
,
data structures
,
schedules
,
two pointers
1300
x14474
1217A
Creating a Character
binary search
,
math
1300
x14628
1260B
Obtain Two Zeroes
binary search
,
math
1300
x15091
1612C
Chat Ban
binary search
,
math
1300
x15751
1862D
Ice Cream Balls
binary search
,
combinatorics
,
constructive algorithms
,
math
1300
x15963
1498B
Box Fitting
binary search
,
bitmasks
,
data structures
,
greedy
1300
x16057
1574C
Slay the Dragon
binary search
,
greedy
,
sortings
,
ternary search
1300
x16507
251A
Points on Line
binary search
,
combinatorics
,
two pointers
1300
x16562
1703F
Yet Another Problem About Pairs Satisfying an Inequality
binary search
,
data structures
,
dp
,
greedy
,
sortings
1300
x18089
1927D
Find the Different Ones!
binary search
,
brute force
,
data structures
,
dp
,
dsu
,
greedy
,
two pointers
1300
x18115
1476B
Inflation
binary search
,
brute force
,
greedy
,
math
1300
x19458
1470A
Strange Birthday Party
binary search
,
dp
,
greedy
,
sortings
,
two pointers
1300
x21204
1538C
Number of Pairs
binary search
,
data structures
,
math
,
two pointers
1300
x26932
600B
Queries about less or equal elements
binary search
,
data structures
,
sortings
,
two pointers
1300
x27348
1328B
K-th Beautiful String
binary search
,
brute force
,
combinatorics
,
implementation
,
math
1300
x28056
230B
T-primes
binary search
,
implementation
,
math
,
number theory
1300
x69711
424B
Megacity
binary search
,
greedy
,
implementation
,
sortings
1200
x7325
302B
Eugeny and Play List
binary search
,
implementation
,
two pointers
1200
x7775
732C
Sanatorium
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
1200
x9467
1100C
NN and the Optical Illusion
binary search
,
geometry
,
math
1200
x9718
1011B
Planning The Expedition
binary search
,
brute force
,
implementation
1200
x9803
911B
Two Cakes
binary search
,
brute force
,
implementation
1200
x10916
1951B
Battle Cows
binary search
,
data structures
,
greedy
1200
x11594
1848B
Vika and the Bridge
binary search
,
data structures
,
greedy
,
implementation
,
math
,
sortings
1200
x13303
1763B
Incinerate
binary search
,
brute force
,
data structures
,
implementation
,
math
,
sortings
1200
x13870
743B
Chloe and the sequence
binary search
,
bitmasks
,
constructive algorithms
,
implementation
1200
x14204
1530C
Pursuit
binary search
,
brute force
,
greedy
,
sortings
1200
x14228
1131C
Birthday
binary search
,
greedy
,
sortings
1200
x14474
637B
Chat Order
*special problem
,
binary search
,
constructive algorithms
,
data structures
,
sortings
1200
x15002
1886B
Fear of the Dark
binary search
,
geometry
,
math
1200
x15097
1928B
Equalize
binary search
,
greedy
,
sortings
,
two pointers
1200
x15131
1671C
Dolce Vita
binary search
,
brute force
,
greedy
,
math
1200
x15869
1860B
Fancy Coins
binary search
,
brute force
,
greedy
,
math
1200
x15966
1853B
Fibonaccharsis
binary search
,
brute force
,
math
1200
x16488
1692E
Binary Deque
binary search
,
implementation
,
two pointers
1200
x19850
1221C
Perfect Team
binary search
,
math
1200
x20119
1006C
Three Parts of the Array
binary search
,
data structures
,
two pointers
1200
x20177
1742E
Scuza
binary search
,
greedy
,
math
1200
x21772
1613C
Poisoned Dagger
binary search
1200
x22485
1354B
Ternary String
binary search
,
dp
,
implementation
,
two pointers
1200
x29093
474B
Worms
binary search
,
implementation
1200
x44705
1352C
K-th Not Divisible by n
binary search
,
math
1200
x49682
492B
Vanya and Lanterns
binary search
,
implementation
,
math
,
sortings
1200
x70997
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x10912
1099B
Squares and Segments
binary search
,
constructive algorithms
,
math
1100
x10979
1884B
Haunted House
binary search
,
greedy
,
math
,
two pointers
1100
x11629
1042A
Benches
binary search
,
implementation
1100
x12496
1904B
Collecting Game
binary search
,
dp
,
greedy
,
sortings
,
two pointers
1100
x12738
1902B
Getting Points
binary search
,
brute force
,
greedy
1100
x13276
1293A
ConneR and the A.R.C. Markland-N
binary search
,
brute force
,
implementation
1100
x14958
166A
Rank List
binary search
,
implementation
,
sortings
1100
x16745
1288A
Deadline
binary search
,
brute force
,
math
,
ternary search
1100
x17870
1426C
Increase and Copy
binary search
,
constructive algorithms
,
math
1100
x19009
1862C
Flower City Fence
binary search
,
data structures
,
implementation
,
sortings
1100
x19580
1850E
Cardboard for Pictures
binary search
,
geometry
,
implementation
,
math
1100
x20696
1873E
Building an Aquarium
binary search
,
sortings
1100
x22793
1669F
Eating Candies
binary search
,
data structures
,
greedy
,
two pointers
1100
x22962
1463A
Dungeon
binary search
,
math
1100
x24426
1676E
Eating Queries
binary search
,
greedy
,
sortings
1100
x24568
1345B
Card Constructions
binary search
,
brute force
,
dp
,
math
1100
x25461
919B
Perfect Number
binary search
,
brute force
,
dp
,
implementation
,
number theory
1100
x26820
1324C
Frog Jumps
binary search
,
data structures
,
dfs and similar
,
greedy
,
implementation
1100
x26881
1366A
Shovels and Swords
binary search
,
greedy
,
math
1100
x28918
1490C
Sum of Cubes
binary search
,
brute force
,
brute force
,
math
1100
x31301
1335C
Two Teams Composing
binary search
,
greedy
,
implementation
,
sortings
1100
x33211
706B
Interesting drink
binary search
,
dp
,
implementation
1100
x58219
195A
Let's Watch Football
binary search
,
brute force
,
math
1000
x8475
1725B
Basketball Together
binary search
,
greedy
,
sortings
1000
x11620
1195B
Sport Mafia
binary search
,
brute force
,
math
1000
x18932
1809B
Points on Plane
binary search
,
greedy
,
math
1000
x19007
1419D1
Sage's Birthday (easy version)
binary search
,
constructive algorithms
,
greedy
,
sortings
1000
x23559
1593C
Save More Mice
binary search
,
greedy
,
greedy
1000
x23931
1744C
Traffic Light
binary search
,
implementation
,
two pointers
1000
x24119
978C
Letters
binary search
,
implementation
,
two pointers
1000
x24318
1474B
Different Divisors
binary search
,
constructive algorithms
,
greedy
,
math
,
number theory
1000
x26266
1476A
K-divisible Sum
binary search
,
constructive algorithms
,
greedy
,
math
1000
x34941
1138A
Sushi for Two
binary search
,
greedy
,
implementation
900
x17371
202A
LLPS
binary search
,
bitmasks
,
brute force
,
greedy
,
implementation
,
strings
800
x15853
1956A
Nene's Game
binary search
,
brute force
,
data structures
,
games
,
greedy
800
x18209
1592A
Gamer Hemose
binary search
,
greedy
,
math
,
sortings
800
x21570
1566A
Median Maximization
binary search
,
greedy
,
math
800
x22713
1611B
Team Composition: Programmers and Mathematicians
binary search
,
constructive algorithms
,
math
800
x28394
1915C
Can I Square?
binary search
,
implementation
800
x37243
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x70689
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