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Kotlin Heroes: Episode 11
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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
1051A
Vasya And Password
greedy
,
implementation
,
strings
1200
x8413
1046F
Splitting money
implementation
1400
x2764
1046C
Space Formula
greedy
1400
x3105
1043C
Smallest Word
constructive algorithms
,
greedy
,
implementation
1500
x6867
1043B
Lost Array
implementation
1200
x6275
1042B
Vitamins
bitmasks
,
brute force
,
dp
,
implementation
1200
x15996
1042A
Benches
binary search
,
implementation
1100
x12871
1040B
Shashlik Cooking
dp
,
greedy
,
math
1300
x7064
1038C
Gambling
greedy
,
sortings
1300
x9426
1038B
Non-Coprime Partition
constructive algorithms
,
math
1100
x13538
1037C
Equalize
dp
,
greedy
,
strings
1300
x18810
1037B
Reach Median
greedy
1300
x10374
1037A
Packets
constructive algorithms
,
greedy
,
math
1300
x11136
1033B
Square Difference
math
,
number theory
1100
x9719
1032B
Personalized Cup
1200
x4995
1031B
Curiosity Has No Limits
1500
x3909
1030C
Vasya and Golden Ticket
implementation
1300
x9434
1030B
Vasya and Cornfield
geometry
1100
x12292
1029B
Creating the Contest
dp
,
greedy
,
math
1200
x16863
1029A
Many Equal Substrings
implementation
,
strings
1300
x12295
1028B
Unnatural Conditions
constructive algorithms
,
math
1200
x9044
1027B
Numbers on the Chessboard
implementation
,
math
1200
x8351
1023C
Bracket Subsequence
greedy
1200
x9893
1023A
Single Wildcard Pattern Matching
brute force
,
implementation
,
strings
1200
x8674
1017B
The Bits
implementation
,
math
1200
x9135
1016B
Segment Occurrences
brute force
,
implementation
1300
x9449
1015C
Songs Compression
sortings
1100
x17959
1015B
Obtaining the String
implementation
1200
x11562
1013B
And
greedy
1200
x7637
1012A
Photo of The Sky
brute force
,
implementation
,
math
,
sortings
1500
x6426
1011B
Planning The Expedition
binary search
,
brute force
,
implementation
1200
x10076
1010A
Fly
binary search
,
math
1500
x8058
1009B
Minimum Ternary String
greedy
,
implementation
1400
x10086
1007A
Reorder the Array
combinatorics
,
data structures
,
math
,
sortings
,
two pointers
1300
x12134
1006C
Three Parts of the Array
binary search
,
data structures
,
two pointers
1200
x21074
1006B
Polycarp's Practice
greedy
,
implementation
,
sortings
1200
x13219
1005D
Polycarp and Div 3
dp
,
greedy
,
number theory
1500
x10141
1005C
Summarize to the Power of Two
brute force
,
greedy
,
implementation
1300
x11627
1004C
Sonya and Robots
constructive algorithms
,
implementation
1400
x7530
1004B
Sonya and Exhibition
constructive algorithms
,
greedy
,
implementation
,
math
1300
x9497
1003C
Intense Heat
brute force
,
implementation
,
math
1300
x10570
1003B
Binary String Constructing
constructive algorithms
1300
x11318
1002E1
Bernstein-Vazirani algorithm
1500
x322
1002D2
Oracle for f(x) = b * x + (1 - b) * (1 - x) mod 2
1300
x378
1002D1
Oracle for f(x) = b * x mod 2
1200
x403
1002B1
Distinguish zero state and W state
1300
x477
1002A3
Generate superposition of two basis states
1500
x476
1002A2
Generate superposition of zero state and a basis state
1300
x558
1001H
Oracle for f(x) = parity of the number of 1s in x
*special problem
1200
x532
1001G
Oracle for f(x) = k-th element of x
*special problem
1400
x538
1001F
Distinguish multi-qubit basis states
*special problem
1300
x538
1001D
Distinguish plus state and minus state
*special problem
1400
x682
1001C
Generate GHZ state
*special problem
1400
x654
1001B
Generate Bell state
*special problem
1400
x711
1001A
Generate plus state or minus state
*special problem
1100
x1010
1000B
Light It Up
greedy
1500
x5792
1000A
Codehorses T-shirts
greedy
,
implementation
1200
x8747
999C
Alphabetic Removals
implementation
1200
x18190
998B
Cutting
dp
,
greedy
,
sortings
1200
x13096
997A
Convert to Ones
brute force
,
greedy
,
implementation
,
math
1500
x8304
996B
World Cup
binary search
,
math
1300
x9027
995B
Suit and Tie
greedy
,
implementation
,
math
1400
x7086
994B
Knights of a Polygonal Table
greedy
,
implementation
,
sortings
1400
x5643
991D
Bishwock
dp
,
greedy
1500
x7147
991C
Candies
binary search
,
implementation
1500
x10373
990C
Bracket Sequences Concatenation Problem
implementation
1500
x5893
990B
Micro-World
greedy
,
sortings
1200
x8075
989B
A Tide of Riverscape
constructive algorithms
,
strings
1200
x7045
988C
Equal Sums
implementation
,
sortings
1400
x10179
988B
Substrings Sort
sortings
,
strings
1100
x18418
987C
Three displays
brute force
,
dp
,
implementation
1400
x13469
987B
High School: Become Human
math
1100
x11609
985C
Liebig's Barrels
greedy
1500
x5764
985B
Switches and Lamps
implementation
1200
x7391
985A
Chess Placing
implementation
1100
x8136
984B
Minesweeper
implementation
1100
x7349
982C
Cut 'em all!
dfs and similar
,
dp
,
graphs
,
greedy
,
trees
1500
x11467
982B
Bus of Characters
data structures
,
greedy
,
implementation
1300
x8279
982A
Row
brute force
,
constructive algorithms
1200
x9060
981C
Useful Decomposition
implementation
,
trees
1400
x5391
978F
Mentors
binary search
,
data structures
,
implementation
1500
x8267
978E
Bus Video System
combinatorics
,
math
1400
x9532
978D
Almost Arithmetic Progression
brute force
,
implementation
,
math
1500
x8724
977E
Cyclic Components
dfs and similar
,
dsu
,
graphs
1500
x20544
977D
Divide by three, multiply by two
dfs and similar
,
math
,
sortings
1400
x18302
977C
Less or Equal
sortings
1200
x34468
976C
Nested Segments
greedy
,
implementation
,
sortings
1500
x6864
976B
Lara Croft and the New Game
implementation
,
math
1300
x5720
975C
Valhalla Siege
binary search
1400
x9636
975B
Mancala
brute force
,
implementation
1100
x6835
967A
Mind the Gap
implementation
1100
x4363
965B
Battleship
implementation
1300
x4569
964B
Messages
math
1300
x4351
962C
Make a Square
brute force
,
implementation
,
math
1400
x7825
962B
Students in Railway Carriage
constructive algorithms
,
greedy
,
implementation
1300
x7671
962A
Equator
implementation
1300
x12790
961C
Chessboard
bitmasks
,
brute force
,
implementation
1400
x5297
961B
Lecture Sleep
data structures
,
dp
,
implementation
,
two pointers
1200
x20782
960B
Minimize the error
data structures
,
greedy
,
sortings
1500
x7925
960A
Check the string
implementation
1200
x8173
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