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Problems
#
Name
1418C
Mortal Kombat Tower
dp
,
graphs
,
greedy
,
shortest paths
1500
x18306
676C
Vasya and String
binary search
,
dp
,
strings
,
two pointers
1500
x18191
1516B
AGAGA XOOORRR
bitmasks
,
brute force
,
dp
,
greedy
1500
x18154
839C
Journey
dfs and similar
,
dp
,
graphs
,
probabilities
,
trees
1500
x15952
1272D
Remove One Element
brute force
,
dp
1500
x15865
1304C
Air Conditioner
dp
,
greedy
,
implementation
,
sortings
,
two pointers
1500
x15801
1492C
Maximum width
binary search
,
data structures
,
dp
,
greedy
,
two pointers
1500
x15610
1391C
Cyclic Permutations
combinatorics
,
dp
,
graphs
,
math
1500
x14566
1547E
Air Conditioners
data structures
,
dp
,
implementation
,
shortest paths
,
sortings
,
two pointers
1500
x13880
1253C
Sweets Eating
dp
,
greedy
,
math
,
sortings
1500
x13822
1536C
Diluc and Kaeya
data structures
,
dp
,
hashing
,
number theory
1500
x13591
1553D
Backspace
dp
,
greedy
,
strings
,
two pointers
1500
x13361
1646C
Factorials and Powers of Two
bitmasks
,
brute force
,
constructive algorithms
,
dp
,
math
1500
x13251
1924A
Did We Get Everything Covered?
constructive algorithms
,
dp
,
greedy
,
shortest paths
,
strings
1500
x12436
1234C
Pipes
dp
,
implementation
1500
x12223
1872E
Data Structures Fan
binary search
,
bitmasks
,
data structures
,
dp
1500
x12119
1881E
Block Sequence
dp
1500
x11854
1673C
Palindrome Basis
brute force
,
dp
,
math
,
number theory
1500
x11820
1842C
Tenzing and Balls
dp
1500
x11753
1811E
Living Sequence
binary search
,
dp
,
math
,
number theory
1500
x11613
1307C
Cow and Message
brute force
,
dp
,
math
,
strings
1500
x11554
1461C
Random Events
dp
,
math
,
probabilities
1500
x10867
982C
Cut 'em all!
dfs and similar
,
dp
,
graphs
,
greedy
,
trees
1500
x10863
1858B
The Walkway
brute force
,
dp
,
greedy
,
math
,
number theory
1500
x10682
1738C
Even Number Addicts
dp
,
games
,
greedy
,
math
1500
x10607
1926E
Vlad and an Odd Ordering
binary search
,
bitmasks
,
data structures
,
dp
,
implementation
,
math
,
number theory
1500
x10168
1105C
Ayoub and Lost Array
combinatorics
,
dp
,
math
1500
x10158
1313C1
Skyscrapers (easy version)
brute force
,
data structures
,
dp
,
greedy
1500
x10114
1759E
The Humanoid
brute force
,
dp
,
sortings
1500
x10043
877B
Nikita and string
brute force
,
dp
1500
x9996
1614C
Divan and bitwise operations
bitmasks
,
combinatorics
,
constructive algorithms
,
dp
,
math
1500
x9933
1005D
Polycarp and Div 3
dp
,
greedy
,
number theory
1500
x9849
1753A2
Make Nonzero Sum (hard version)
constructive algorithms
,
dp
,
greedy
1500
x9821
1659C
Line Empire
binary search
,
brute force
,
dp
,
greedy
,
implementation
,
math
1500
x9741
264B
Good Sequences
dp
,
number theory
1500
x9647
891A
Pride
brute force
,
dp
,
greedy
,
math
,
number theory
1500
x9641
1207C
Gas Pipeline
dp
,
greedy
1500
x9568
1851E
Nastya and Potions
dfs and similar
,
dp
,
graphs
,
sortings
1500
x9490
1767D
Playoff
combinatorics
,
constructive algorithms
,
dp
,
greedy
,
math
1500
x9454
1051C
Vasya and Multisets
brute force
,
dp
,
greedy
,
implementation
,
math
1500
x9148
1739C
Card Game
combinatorics
,
constructive algorithms
,
dp
,
games
1500
x8731
1408C
Discrete Acceleration
binary search
,
dp
,
implementation
,
math
,
two pointers
1500
x8646
553A
Kyoya and Colored Balls
combinatorics
,
dp
,
math
1500
x8388
855B
Marvolo Gaunt's Ring
brute force
,
data structures
,
dp
1500
x8377
611C
New Year and Domino
dp
,
implementation
1500
x8330
1789C
Serval and Toxel's Arrays
combinatorics
,
dp
,
implementation
,
math
1500
x8112
332B
Maximum Absurdity
data structures
,
dp
,
implementation
1500
x7824
1084C
The Fair Nut and String
combinatorics
,
dp
,
implementation
1500
x7562
873B
Balanced Substring
dp
,
implementation
1500
x7420
1081C
Colorful Bricks
combinatorics
,
dp
,
math
1500
x7056
991D
Bishwock
dp
,
greedy
1500
x7050
340D
Bubble Sort Graph
binary search
,
data structures
,
dp
1500
x7016
761C
Dasha and Password
brute force
,
dp
,
implementation
1500
x5840
204A
Little Elephant and Interval
binary search
,
combinatorics
,
dp
1500
x5543
858C
Did you mean...
dp
,
greedy
,
implementation
1500
x5447
859C
Pie Rules
dp
,
games
1500
x5273
255C
Almost Arithmetical Progression
brute force
,
dp
1500
x4629
868C
Qualification Rounds
bitmasks
,
brute force
,
constructive algorithms
,
dp
1500
x4530
159D
Palindrome pairs
*special problem
,
brute force
,
dp
,
strings
1500
x4253
22B
Bargaining Table
brute force
,
dp
1500
x4083
191A
Dynasty Puzzles
dp
1500
x3814
566F
Clique in the Divisibility Graph
dp
,
math
,
number theory
1500
x3527
417A
Elimination
dp
,
implementation
,
math
1500
x2878
10B
Cinema Cashier
dp
,
implementation
1500
x1722
212E
IT Restaurants
dfs and similar
,
dp
,
trees
1500
x1670
74B
Train
dp
,
games
,
greedy
1500
x1494
431C
k-Tree
dp
,
implementation
,
trees
1600
x24618
1398C
Good Subarrays
data structures
,
dp
,
math
1600
x24284
1336A
Linova and Kingdom
dfs and similar
,
dp
,
greedy
,
sortings
,
trees
1600
x19407
1389B
Array Walk
brute force
,
dp
,
greedy
1600
x15853
706C
Hard problem
dp
,
strings
1600
x15664
1373D
Maximum Sum on Even Positions
divide and conquer
,
dp
,
greedy
,
implementation
1600
x15026
1519D
Maximum Sum of Products
brute force
,
dp
,
implementation
,
math
,
two pointers
1600
x14621
1528A
Parsa's Humongous Tree
dfs and similar
,
divide and conquer
,
dp
,
greedy
,
trees
1600
x13941
1395C
Boboniu and Bit Operations
bitmasks
,
brute force
,
dp
,
greedy
1600
x13542
1513C
Add One
dp
,
matrices
1600
x13272
1633D
Make Them Equal
dp
,
greedy
1600
x13082
1295C
Obtain The String
dp
,
greedy
,
strings
1600
x12564
1288C
Two Arrays
combinatorics
,
dp
1600
x12319
1537E1
Erase and Extend (Easy Version)
binary search
,
brute force
,
dp
,
greedy
,
hashing
,
implementation
,
string suffix structures
,
strings
,
two pointers
1600
x12301
1632C
Strange Test
binary search
,
bitmasks
,
brute force
,
dp
,
math
1600
x12275
446A
DZY Loves Sequences
dp
,
implementation
,
two pointers
1600
x12259
1455D
Sequence and Swaps
dp
,
greedy
,
sortings
1600
x12004
165C
Another Problem on Strings
binary search
,
brute force
,
dp
,
math
,
strings
,
two pointers
1600
x11894
1567C
Carrying Conundrum
bitmasks
,
combinatorics
,
dp
,
math
1600
x11861
1555D
Say No to Palindromes
brute force
,
constructive algorithms
,
dp
,
strings
1600
x11778
1856C
To Become Max
binary search
,
brute force
,
data structures
,
dp
1600
x11134
1476C
Longest Simple Cycle
dp
,
graphs
,
greedy
1600
x11080
1741E
Sending a Sequence Over the Network
dp
1600
x10913
1151B
Dima and a Bad XOR
bitmasks
,
brute force
,
constructive algorithms
,
dp
1600
x10706
1689C
Infected Tree
dfs and similar
,
dp
,
trees
1600
x10539
1748C
Zero-Sum Prefixes
brute force
,
data structures
,
dp
,
greedy
,
implementation
1600
x10510
1469C
Building a Fence
dp
,
greedy
,
implementation
,
two pointers
1600
x10508
763A
Timofey and a tree
dfs and similar
,
dp
,
dsu
,
graphs
,
implementation
,
trees
1600
x10142
1722E
Counting Rectangles
brute force
,
data structures
,
dp
,
implementation
1600
x10119
1703G
Good Key, Bad Key
bitmasks
,
brute force
,
dp
,
greedy
,
math
1600
x10066
1282B2
K for the Price of One (Hard Version)
dp
,
greedy
,
sortings
1600
x9831
1196D2
RGB Substring (hard version)
data structures
,
dp
,
implementation
,
two pointers
1600
x9488
1829G
Hits Different
data structures
,
dp
,
implementation
,
math
1600
x9471
607A
Chain Reaction
binary search
,
dp
1600
x9360
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Codeforces Round 946 (Div. 3)
02:35:54
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combine-tags-by-or
*combine tags by OR
2-sat
binary search
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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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