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Codeforces Round 943 (Div. 3)
19:24:05
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Difficulty:
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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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Problems
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Name
520B
Two Buttons
dfs and similar
,
graphs
,
greedy
,
implementation
,
math
,
shortest paths
1400
x47805
489C
Given Length and Sum of Digits...
dp
,
greedy
,
implementation
1400
x44335
479C
Exams
greedy
,
sortings
1400
x28490
515C
Drazil and Factorial
greedy
,
math
,
sortings
1400
x24919
1348B
Phoenix and Beauty
constructive algorithms
,
data structures
,
greedy
,
sortings
1400
x24515
1365C
Rotation Matching
constructive algorithms
,
data structures
,
greedy
,
implementation
1400
x22341
1201C
Maximum Median
binary search
,
greedy
,
math
,
sortings
1400
x21305
1506D
Epic Transformation
constructive algorithms
,
data structures
,
greedy
1400
x20686
1375C
Element Extermination
constructive algorithms
,
data structures
,
greedy
1400
x20414
1520E
Arranging The Sheep
greedy
,
math
1400
x19891
1380C
Create The Teams
brute force
,
dp
,
greedy
,
implementation
,
sortings
1400
x19863
401C
Team
constructive algorithms
,
greedy
,
implementation
1400
x19256
1369C
RationalLee
greedy
,
math
,
sortings
,
two pointers
1400
x19013
1463B
Find The Array
bitmasks
,
constructive algorithms
,
greedy
1400
x18722
1490E
Accidental Victory
binary search
,
data structures
,
greedy
1400
x18347
538B
Quasi Binary
constructive algorithms
,
dp
,
greedy
,
implementation
1400
x17580
26B
Regular Bracket Sequence
greedy
1400
x17433
1332B
Composite Coloring
brute force
,
constructive algorithms
,
greedy
,
math
,
number theory
1400
x17020
1362C
Johnny and Another Rating Drop
bitmasks
,
greedy
,
math
1400
x16990
1919C
Grouping Increases
data structures
,
dp
,
greedy
1400
x16726
1515C
Phoenix and Towers
constructive algorithms
,
data structures
,
greedy
1400
x16463
1605C
Dominant Character
brute force
,
greedy
,
implementation
,
strings
1400
x16303
1393B
Applejack and Storages
constructive algorithms
,
data structures
,
greedy
,
implementation
1400
x16239
1624D
Palindromes Coloring
binary search
,
greedy
,
sortings
,
strings
1400
x16224
1462D
Add to Neighbour and Remove
greedy
,
math
,
number theory
1400
x16204
1535C
Unstable String
binary search
,
dp
,
greedy
,
implementation
,
strings
,
two pointers
1400
x16060
1548A
Web of Lies
brute force
,
graphs
,
greedy
1400
x16007
1519C
Berland Regional
brute force
,
data structures
,
greedy
,
number theory
,
sortings
1400
x15933
1312C
Adding Powers
bitmasks
,
greedy
,
implementation
,
math
,
number theory
,
ternary search
1400
x15811
1095C
Powers Of Two
bitmasks
,
greedy
1400
x15701
1701C
Schedule Management
binary search
,
greedy
,
implementation
,
two pointers
1400
x15690
1320A
Journey Planning
data structures
,
dp
,
greedy
,
math
,
sortings
1400
x15421
1579D
Productive Meeting
constructive algorithms
,
graphs
,
greedy
1400
x15372
1451C
String Equality
dp
,
greedy
,
hashing
,
implementation
,
strings
1400
x15198
1628A
Meximum Array
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
,
two pointers
1400
x15180
1728C
Digital Logarithm
data structures
,
greedy
,
sortings
1400
x15071
1691C
Sum of Substrings
brute force
,
constructive algorithms
,
greedy
,
math
,
strings
1400
x15069
1551B2
Wonderful Coloring - 2
binary search
,
constructive algorithms
,
data structures
,
greedy
1400
x15033
1443C
The Delivery Dilemma
binary search
,
greedy
,
sortings
1400
x14938
1108D
Diverse Garland
constructive algorithms
,
dp
,
greedy
1400
x14690
1452B
Toy Blocks
binary search
,
greedy
,
math
,
sortings
1400
x14427
1706C
Qpwoeirut And The City
dp
,
flows
,
greedy
,
implementation
1400
x14421
1380B
Universal Solution
greedy
1400
x14218
1573B
Swaps
greedy
,
math
,
sortings
1400
x14137
1682C
LIS or Reverse LIS?
constructive algorithms
,
greedy
,
implementation
,
math
1400
x14099
1494B
Berland Crossword
bitmasks
,
brute force
,
greedy
,
implementation
1400
x13926
1697C
awoo's Favorite Problem
binary search
,
constructive algorithms
,
data structures
,
greedy
,
implementation
,
strings
,
two pointers
1400
x13922
1606C
Banknotes
greedy
,
number theory
1400
x13719
492C
Vanya and Exams
greedy
,
sortings
1400
x13682
1540A
Great Graphs
constructive algorithms
,
graphs
,
greedy
,
shortest paths
,
sortings
1400
x13666
1197C
Array Splitting
greedy
,
sortings
1400
x13534
437C
The Child and Toy
graphs
,
greedy
,
sortings
1400
x13490
1644C
Increase Subarray Sums
brute force
,
dp
,
greedy
,
implementation
1400
x13327
1749C
Number Game
binary search
,
data structures
,
games
,
greedy
,
implementation
1400
x13304
1845C
Strong Password
binary search
,
dp
,
greedy
,
strings
1400
x13297
1183D
Candy Box (easy version)
greedy
,
sortings
1400
x13286
1837D
Bracket Coloring
constructive algorithms
,
greedy
1400
x13273
1559D1
Mocha and Diana (Easy Version)
brute force
,
constructive algorithms
,
dsu
,
graphs
,
greedy
,
trees
1400
x13192
1931E
Anna and the Valentine's Day Gift
games
,
greedy
,
math
,
sortings
1400
x13185
1654C
Alice and the Cake
data structures
,
greedy
,
implementation
,
sortings
1400
x13145
1929C
Sasha and the Casino
binary search
,
brute force
,
constructive algorithms
,
games
,
greedy
,
math
1400
x13127
1517C
Fillomino 2
constructive algorithms
,
dfs and similar
,
greedy
,
implementation
1400
x13054
363C
Fixing Typos
greedy
,
implementation
1400
x13053
1923C
Find B
constructive algorithms
,
greedy
1400
x13004
1721C
Min-Max Array Transformation
binary search
,
greedy
,
two pointers
1400
x12958
1733D1
Zero-One (Easy Version)
constructive algorithms
,
greedy
,
math
1400
x12884
1758C
Almost All Multiples
greedy
,
number theory
1400
x12875
1256B
Minimize the Permutation
greedy
1400
x12773
1840D
Wooden Toy Festival
binary search
,
greedy
,
sortings
1400
x12756
1833D
Flipper
brute force
,
constructive algorithms
,
greedy
1400
x12651
1918C
XOR-distance
bitmasks
,
greedy
,
implementation
,
math
1400
x12455
1860C
Game on Permutation
data structures
,
dp
,
games
,
greedy
1400
x12375
1847C
Vampiric Powers, anyone?
bitmasks
,
brute force
,
dp
,
greedy
1400
x12190
1800E1
Unforgivable Curse (easy version)
brute force
,
constructive algorithms
,
dsu
,
graphs
,
greedy
,
strings
1400
x12112
445B
DZY Loves Chemistry
dfs and similar
,
dsu
,
greedy
1400
x12085
1276A
As Simple as One and Two
dp
,
greedy
1400
x12033
1684C
Column Swapping
brute force
,
constructive algorithms
,
greedy
,
implementation
,
sortings
1400
x12005
1844D
Row Major
constructive algorithms
,
greedy
,
math
,
number theory
,
strings
1400
x11593
388A
Fox and Box Accumulation
greedy
,
sortings
1400
x11332
1696C
Fishingprince Plays With Array
constructive algorithms
,
greedy
,
implementation
,
math
1400
x11297
1914E2
Game with Marbles (Hard Version)
games
,
greedy
,
sortings
1400
x11175
1282B1
K for the Price of One (Easy Version)
dp
,
greedy
,
sortings
1400
x11166
1263B
PIN Codes
greedy
,
implementation
1400
x11118
1914E1
Game with Marbles (Easy Version)
brute force
,
games
,
greedy
,
sortings
1400
x11080
1905C
Largest Subsequence
greedy
,
strings
1400
x10987
1878E
Iva & Pav
binary search
,
bitmasks
,
data structures
,
greedy
1400
x10950
1253B
Silly Mistake
greedy
,
implementation
1400
x10904
1824A
LuoTianyi and the Show
greedy
,
implementation
1400
x10771
1875C
Jellyfish and Green Apple
bitmasks
,
greedy
,
math
,
number theory
1400
x10749
1251B
Binary Palindromes
greedy
,
strings
1400
x10721
1427B
Chess Cheater
greedy
,
implementation
,
sortings
1400
x10687
1901C
Add, Divide and Floor
constructive algorithms
,
greedy
,
math
1400
x10625
1110B
Tape
greedy
,
sortings
1400
x10606
1740C
Bricks and Bags
constructive algorithms
,
games
,
greedy
,
sortings
1400
x10549
1903C
Theofanis' Nightmare
constructive algorithms
,
greedy
1400
x10307
1102B
Array K-Coloring
greedy
,
sortings
1400
x10146
797B
Odd sum
dp
,
greedy
,
implementation
1400
x10140
1144D
Equalize Them All
constructive algorithms
,
greedy
1400
x9979
1909C
Heavy Intervals
constructive algorithms
,
data structures
,
dsu
,
greedy
,
math
,
sortings
1400
x9899
1009B
Minimum Ternary String
greedy
,
implementation
1400
x9891
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