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Kotlin Heroes: Practice 6
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constructive algorithms
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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Custom test
Problems
#
Name
814B
An express train to reveries
constructive algorithms
1300
x4926
820B
Mister B and Angle in Polygon
constructive algorithms
,
geometry
,
math
1300
x4438
311A
The Closest Pair
constructive algorithms
,
implementation
1300
x3447
634A
Island Puzzle
constructive algorithms
,
implementation
1300
x2692
1425H
Huge Boxes of Animal Toys
constructive algorithms
1300
x2561
730H
Delete Them
constructive algorithms
,
implementation
1300
x2466
40A
Find Color
constructive algorithms
,
geometry
,
implementation
,
math
1300
x2188
238A
Not Wool Sequences
constructive algorithms
,
math
1300
x1737
85A
Domino
constructive algorithms
,
implementation
1300
x1457
1348B
Phoenix and Beauty
constructive algorithms
,
data structures
,
greedy
,
sortings
1400
x16608
1365C
Rotation Matching
constructive algorithms
,
data structures
,
greedy
,
implementation
1400
x14806
1375C
Element Extermination
constructive algorithms
,
data structures
,
greedy
1400
x13299
1332B
Composite Coloring
brute force
,
constructive algorithms
,
greedy
,
math
,
number theory
1400
x12565
538B
Quasi Binary
constructive algorithms
,
dp
,
greedy
,
implementation
1400
x12515
401C
Team
constructive algorithms
,
greedy
,
implementation
1400
x12512
1355D
Game With Array
constructive algorithms
,
math
1400
x12376
1393B
Applejack and Storages
constructive algorithms
,
data structures
,
greedy
,
implementation
1400
x11800
1108D
Diverse Garland
constructive algorithms
,
dp
,
greedy
1400
x10457
1463B
Find The Array
bitmasks
,
constructive algorithms
,
greedy
1400
x10329
1270C
Make Good
bitmasks
,
constructive algorithms
,
math
1400
x9639
1453B
Suffix Operations
constructive algorithms
,
implementation
1400
x8742
1421C
Palindromifier
constructive algorithms
,
strings
1400
x8369
1316B
String Modification
brute force
,
constructive algorithms
,
implementation
,
sortings
,
strings
1400
x8359
679A
Bear and Prime 100
constructive algorithms
,
interactive
,
math
1400
x7855
1103A
Grid game
constructive algorithms
,
implementation
1400
x7662
1266C
Diverse Matrix
constructive algorithms
,
greedy
,
math
,
number theory
1400
x7363
1144D
Equalize Them All
constructive algorithms
,
greedy
1400
x7353
711B
Chris and Magic Square
constructive algorithms
,
implementation
1400
x7212
525B
Pasha and String
constructive algorithms
,
greedy
,
math
,
strings
1400
x7137
1408B
Arrays Sum
constructive algorithms
,
greedy
,
math
1400
x6862
1088C
Ehab and a 2-operation task
constructive algorithms
,
greedy
,
math
1400
x6317
675B
Restoring Painting
brute force
,
constructive algorithms
,
math
1400
x6103
1004C
Sonya and Robots
constructive algorithms
,
implementation
1400
x5982
544B
Sea and Islands
constructive algorithms
,
implementation
1400
x5856
911C
Three Garlands
brute force
,
constructive algorithms
1400
x5813
479B
Towers
brute force
,
constructive algorithms
,
greedy
,
implementation
,
sortings
1400
x5765
357B
Flag Day
constructive algorithms
,
implementation
1400
x5598
359B
Permutation
constructive algorithms
,
dp
,
math
1400
x5099
369B
Valera and Contest
constructive algorithms
,
implementation
,
math
1400
x4719
689A
Mike and Cellphone
brute force
,
constructive algorithms
,
implementation
1400
x4561
313C
Ilya and Matrix
constructive algorithms
,
greedy
,
implementation
,
sortings
1400
x4352
808C
Tea Party
constructive algorithms
,
greedy
,
sortings
1400
x4295
748C
Santa Claus and Robot
constructive algorithms
,
math
1400
x4052
417C
Football
constructive algorithms
,
graphs
,
implementation
1400
x3750
727C
Guess the Array
constructive algorithms
,
interactive
,
math
1400
x3675
865A
Save the problem!
constructive algorithms
1400
x3670
803A
Maximal Binary Matrix
constructive algorithms
1400
x3442
632B
Alice, Bob, Two Teams
brute force
,
constructive algorithms
1400
x3061
286A
Lucky Permutation
constructive algorithms
,
math
1400
x2657
8B
Obsession with Robots
constructive algorithms
,
graphs
,
implementation
1400
x2558
637C
Promocodes with Mistakes
*special problem
,
brute force
,
constructive algorithms
,
implementation
1400
x2254
335A
Banana
binary search
,
constructive algorithms
,
greedy
1400
x1535
1368B
Codeforces Subsequences
brute force
,
constructive algorithms
,
greedy
,
math
,
strings
1500
x12819
1372C
Omkar and Baseball
constructive algorithms
,
math
1500
x12009
1399D
Binary String To Subsequences
constructive algorithms
,
data structures
,
greedy
,
implementation
1500
x11805
1400C
Binary String Reconstruction
2-sat
,
brute force
,
constructive algorithms
,
greedy
1500
x11778
1368C
Even Picture
constructive algorithms
1500
x10238
1352F
Binary String Reconstruction
constructive algorithms
,
dfs and similar
,
math
1500
x10147
268C
Beautiful Sets of Points
constructive algorithms
,
implementation
1500
x9701
1325C
Ehab and Path-etic MEXs
constructive algorithms
,
dfs and similar
,
greedy
,
trees
1500
x9690
1419D2
Sage's Birthday (hard version)
binary search
,
brute force
,
constructive algorithms
,
greedy
,
sortings
,
two pointers
1500
x9463
1242A
Tile Painting
constructive algorithms
,
math
,
number theory
1500
x9337
1426D
Non-zero Segments
constructive algorithms
,
data structures
,
greedy
,
sortings
1500
x9002
1283C
Friends and Gifts
constructive algorithms
,
data structures
,
math
1500
x8861
1473C
No More Inversions
constructive algorithms
,
math
1500
x8659
441C
Valera and Tubes
constructive algorithms
,
dfs and similar
,
implementation
1500
x8097
743C
Vladik and fractions
brute force
,
constructive algorithms
,
math
,
number theory
1500
x7985
1215C
Swap Letters
constructive algorithms
,
greedy
1500
x7519
414A
Mashmokh and Numbers
constructive algorithms
,
number theory
1500
x7444
1487C
Minimum Ties
brute force
,
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
implementation
,
math
1500
x7324
1114B
Yet Another Array Partitioning Task
constructive algorithms
,
greedy
,
sortings
1500
x7300
1186D
Vus the Cossack and Numbers
constructive algorithms
,
greedy
,
math
1500
x6810
1110C
Meaningless Operations
constructive algorithms
,
math
,
number theory
1500
x6810
1439A1
Binary Table (Easy Version)
constructive algorithms
,
implementation
1500
x6695
282C
XOR and OR
constructive algorithms
,
implementation
,
math
1500
x6482
468A
24 Game
constructive algorithms
,
greedy
,
math
1500
x6352
557B
Pasha and Tea
constructive algorithms
,
implementation
,
math
,
sortings
1500
x6273
496C
Removing Columns
brute force
,
constructive algorithms
,
implementation
1500
x6232
1136C
Nastya Is Transposing Matrices
constructive algorithms
,
sortings
1500
x6209
771B
Bear and Different Names
constructive algorithms
,
greedy
1500
x5824
1119C
Ramesses and Corner Inversion
constructive algorithms
,
greedy
,
implementation
,
math
1500
x5596
409H
A + B Strikes Back
*special problem
,
brute force
,
constructive algorithms
,
dsu
,
implementation
1500
x5591
1209C
Paint the Digits
constructive algorithms
,
greedy
,
implementation
1500
x5559
1178D
Prime Graph
constructive algorithms
,
greedy
,
math
,
number theory
1500
x5402
1167D
Bicolored RBS
constructive algorithms
,
greedy
1500
x5381
1043C
Smallest Word
constructive algorithms
,
greedy
,
implementation
1500
x5368
1158A
The Party and Sweets
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
,
sortings
,
two pointers
1500
x4863
496B
Secret Combination
brute force
,
constructive algorithms
,
implementation
1500
x4523
501C
Misha and Forest
constructive algorithms
,
data structures
,
greedy
,
sortings
,
trees
1500
x4485
940C
Phone Numbers
constructive algorithms
,
implementation
,
strings
1500
x4467
959C
Mahmoud and Ehab and the wrong algorithm
constructive algorithms
,
trees
1500
x4466
901A
Hashing Trees
constructive algorithms
,
trees
1500
x4346
402C
Searching for Graph
brute force
,
constructive algorithms
,
graphs
1500
x4173
710C
Magic Odd Square
constructive algorithms
,
math
1500
x4008
746D
Green and Black Tea
constructive algorithms
,
greedy
,
math
1500
x3993
329A
Purification
constructive algorithms
,
greedy
1500
x3917
1081B
Farewell Party
constructive algorithms
,
implementation
1500
x3731
1054C
Candies Distribution
constructive algorithms
,
implementation
1500
x3599
868C
Qualification Rounds
bitmasks
,
brute force
,
constructive algorithms
,
dp
1500
x3404
231B
Magic, Wizardry and Wonders
constructive algorithms
,
greedy
1500
x2774
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