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Codeforces Round 878 (Div. 3)
32:09:41
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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
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x58297
1611B
Team Composition: Programmers and Mathematicians
binary search
,
constructive algorithms
,
math
800
x24919
1566A
Median Maximization
binary search
,
greedy
,
math
800
x20427
1592A
Gamer Hemose
binary search
,
greedy
,
math
,
sortings
800
x19603
202A
LLPS
binary search
,
bitmasks
,
brute force
,
greedy
,
implementation
,
strings
800
x14018
1138A
Sushi for Two
binary search
,
greedy
,
implementation
900
x15333
1476A
K-divisible Sum
binary search
,
constructive algorithms
,
greedy
,
math
1000
x29691
1474B
Different Divisors
binary search
,
constructive algorithms
,
greedy
,
math
,
number theory
1000
x23249
1419D1
Sage's Birthday (easy version)
binary search
,
constructive algorithms
,
greedy
,
sortings
1000
x21343
1593C
Save More Mice
binary search
,
greedy
,
greedy
1000
x21168
978C
Letters
binary search
,
implementation
,
two pointers
1000
x21110
1744C
Traffic Light
binary search
,
implementation
,
two pointers
1000
x19180
1195B
Sport Mafia
binary search
,
brute force
,
math
1000
x17390
1809B
Points on Plane
binary search
,
greedy
,
math
1000
x16085
1725B
Basketball Together
binary search
,
greedy
,
sortings
1000
x9007
195A
Let's Watch Football
binary search
,
brute force
,
math
1000
x7561
706B
Interesting drink
binary search
,
dp
,
implementation
1100
x46871
1335C
Two Teams Composing
binary search
,
greedy
,
implementation
,
sortings
1100
x30380
1490C
Sum of Cubes
binary search
,
brute force
,
brute force
,
math
1100
x27054
1366A
Shovels and Swords
binary search
,
greedy
,
math
1100
x26325
1324C
Frog Jumps
binary search
,
data structures
,
dfs and similar
,
greedy
,
implementation
1100
x24622
1345B
Card Constructions
binary search
,
brute force
,
dp
,
math
1100
x23605
919B
Perfect Number
binary search
,
brute force
,
dp
,
implementation
,
number theory
1100
x23361
1463A
Dungeon
binary search
,
math
1100
x21997
1676E
Eating Queries
binary search
,
greedy
,
sortings
1100
x20164
1669F
Eating Candies
binary search
,
data structures
,
greedy
,
two pointers
1100
x18228
1426C
Increase and Copy
binary search
,
constructive algorithms
,
math
1100
x17937
1288A
Deadline
binary search
,
brute force
,
math
,
ternary search
1100
x16965
1293A
ConneR and the A.R.C. Markland-N
binary search
,
brute force
,
implementation
1100
x14423
166A
Rank List
binary search
,
implementation
,
sortings
1100
x14345
1042A
Benches
binary search
,
implementation
1100
x11593
1099B
Squares and Segments
binary search
,
constructive algorithms
,
math
1100
x10170
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x10135
492B
Vanya and Lanterns
binary search
,
implementation
,
math
,
sortings
1200
x61444
1352C
K-th Not Divisible by n
binary search
,
math
1200
x39793
474B
Worms
binary search
,
implementation
1200
x36622
1354B
Ternary String
binary search
,
dp
,
implementation
,
two pointers
1200
x25895
1613C
Poisoned Dagger
binary search
1200
x18710
1221C
Perfect Team
binary search
,
math
1200
x18310
1006C
Three Parts of the Array
binary search
,
data structures
,
two pointers
1200
x17941
1742E
Scuza
binary search
,
greedy
,
math
1200
x16357
1692E
Binary Deque
binary search
,
implementation
,
two pointers
1200
x16028
1671C
Dolce Vita
binary search
,
brute force
,
greedy
,
math
1200
x13964
1131C
Birthday
binary search
,
greedy
,
sortings
1200
x13422
1530C
Pursuit
binary search
,
brute force
,
greedy
,
sortings
1200
x13378
743B
Chloe and the sequence
binary search
,
bitmasks
,
constructive algorithms
,
implementation
1200
x12920
637B
Chat Order
*special problem
,
binary search
,
constructive algorithms
,
data structures
,
sortings
1200
x12306
1763B
Incinerate
binary search
,
brute force
,
data structures
,
implementation
,
math
,
sortings
1200
x11648
911B
Two Cakes
binary search
,
brute force
,
implementation
1200
x10190
1100C
NN and the Optical Illusion
binary search
,
geometry
,
math
1200
x9392
1011B
Planning The Expedition
binary search
,
brute force
,
implementation
1200
x9291
732C
Sanatorium
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
1200
x8743
302B
Eugeny and Play List
binary search
,
implementation
,
two pointers
1200
x7043
424B
Megacity
binary search
,
greedy
,
implementation
,
sortings
1200
x6729
230B
T-primes
binary search
,
implementation
,
math
,
number theory
1300
x58553
1328B
K-th Beautiful String
binary search
,
brute force
,
combinatorics
,
implementation
,
math
1300
x25816
1538C
Number of Pairs
binary search
,
data structures
,
math
,
two pointers
1300
x23408
600B
Queries about less or equal elements
binary search
,
data structures
,
sortings
,
two pointers
1300
x22811
1470A
Strange Birthday Party
binary search
,
dp
,
greedy
,
sortings
,
two pointers
1300
x19360
1476B
Inflation
binary search
,
brute force
,
greedy
,
math
1300
x17940
1574C
Slay the Dragon
binary search
,
greedy
,
sortings
,
ternary search
1300
x14933
251A
Points on Line
binary search
,
combinatorics
,
two pointers
1300
x14721
1703F
Yet Another Problem About Pairs Satisfying an Inequality
binary search
,
data structures
,
dp
,
greedy
,
sortings
1300
x14642
1498B
Box Fitting
binary search
,
bitmasks
,
data structures
,
greedy
1300
x14610
1260B
Obtain Two Zeroes
binary search
,
math
1300
x14319
1217A
Creating a Character
binary search
,
math
1300
x13898
1612C
Chat Ban
binary search
,
math
1300
x13559
1617C
Paprika and Permutation
binary search
,
greedy
,
math
,
sortings
1300
x13127
1279B
Verse For Santa
binary search
,
brute force
,
implementation
1300
x12748
96B
Lucky Numbers (easy)
binary search
,
bitmasks
,
brute force
1300
x12525
1736C1
Good Subarrays (Easy Version)
binary search
,
data structures
,
schedules
,
two pointers
1300
x12379
1561C
Deep Down Below
binary search
,
greedy
,
sortings
1300
x12314
1076C
Meme Problem
binary search
,
math
1300
x11284
1187B
Letters Shop
binary search
,
implementation
,
strings
1300
x11262
271B
Prime Matrix
binary search
,
brute force
,
math
,
number theory
1300
x11229
1794C
Scoring Subsequences
binary search
,
greedy
,
math
,
two pointers
1300
x9666
192A
Funky Numbers
binary search
,
brute force
,
implementation
1300
x9281
1119B
Alyona and a Narrow Fridge
binary search
,
flows
,
greedy
,
sortings
1300
x8980
1807E
Interview
binary search
,
implementation
,
interactive
1300
x8929
1315B
Homecoming
binary search
,
dp
,
greedy
,
strings
1300
x8596
996B
World Cup
binary search
,
math
1300
x8210
1737B
Ela's Fitness and the Luxury Number
binary search
,
implementation
,
math
1300
x8206
932B
Recursive Queries
binary search
,
data structures
,
dfs and similar
1300
x7317
152B
Steps
binary search
,
implementation
1300
x5747
161A
Dress'em in Vests!
binary search
,
brute force
,
greedy
,
two pointers
1300
x4374
181B
Number of Triplets
binary search
,
brute force
1300
x2528
279B
Books
binary search
,
brute force
,
implementation
,
two pointers
1400
x38208
1324D
Pair of Topics
binary search
,
data structures
,
sortings
,
two pointers
1400
x23081
1201C
Maximum Median
binary search
,
greedy
,
math
,
sortings
1400
x17355
1490E
Accidental Victory
binary search
,
data structures
,
greedy
1400
x15990
1535C
Unstable String
binary search
,
dp
,
greedy
,
implementation
,
strings
,
two pointers
1400
x14727
1354C1
Simple Polygon Embedding
binary search
,
geometry
,
math
,
ternary search
1400
x14705
1624D
Palindromes Coloring
binary search
,
greedy
,
sortings
,
strings
1400
x14198
1628A
Meximum Array
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
,
two pointers
1400
x13894
1551B2
Wonderful Coloring - 2
binary search
,
constructive algorithms
,
data structures
,
greedy
1400
x13816
1443C
The Delivery Dilemma
binary search
,
greedy
,
sortings
1400
x13565
816B
Karen and Coffee
binary search
,
data structures
,
implementation
1400
x13557
1452B
Toy Blocks
binary search
,
greedy
,
math
,
sortings
1400
x13527
1701C
Schedule Management
binary search
,
greedy
,
implementation
,
two pointers
1400
x13523
1183C
Computer Game
binary search
,
math
1400
x12747
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