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Before contest
CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
22:07:36
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→ Filter Problems
Difficulty:
—
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
1505I
Mysterious language again, seriously?
*special problem
2200
x560
1505H
L BREAK into program
*special problem
2500
x514
1505G
Encoded message
*special problem
,
implementation
2600
x307
1505F
Math
*special problem
,
math
2200
x1515
1505E
Cakewalk
*special problem
,
greedy
,
implementation
,
shortest paths
1800
x1808
1505D
Xenolith? Hippodrome?
*special problem
,
number theory
1800
x800
1505C
Fibonacci Words
*special problem
,
implementation
1400
x6465
1505B
DMCA
*special problem
,
implementation
,
number theory
1600
x6198
1505A
Is it rated - 2
*special problem
,
implementation
,
interactive
900
x14619
1488J
Flower Shop
*special problem
,
data structures
,
fft
,
math
3100
x35
1488I
Demonic Invasion
*special problem
,
flows
3100
x37
1488H
Build From Suffixes
*special problem
,
combinatorics
,
data structures
2800
x58
1488G
Painting Numbers
*special problem
,
data structures
,
greedy
,
number theory
2500
x123
1488F
Dogecoin
*special problem
,
*special problem
,
binary search
,
data structures
2300
x176
1488E
Palindromic Doubles
*special problem
,
data structures
,
dp
2200
x215
1488D
Problemsolving Marathon
*special problem
,
binary search
,
greedy
1900
x339
1488C
Two Policemen
*special problem
,
binary search
,
brute force
,
math
1900
x425
1488B
RBS Deletion
*special problem
,
greedy
1800
x568
1488A
From Zero To Y
*special problem
,
math
900
x1433
1431J
Zero-XOR Array
*special problem
,
dp
3400
x44
1431I
Cyclic Shifts
*special problem
,
strings
2900
x46
1431H
Rogue-like Game
*special problem
,
brute force
,
greedy
,
two pointers
2600
x67
1431G
Number Deletion Game
*special problem
,
dp
,
games
,
greedy
2100
x189
1431F
Neural Network Problem
*special problem
,
binary search
,
greedy
2100
x156
1431E
Chess Match
*special problem
2000
x224
1431D
Used Markers
*special problem
,
greedy
1500
x457
1431C
Black Friday
*special problem
,
implementation
1600
x707
1431B
Polycarp and the Language of Gods
*special problem
,
implementation
,
two pointers
1400
x1014
1431A
Selling Hamburgers
*special problem
800
x1909
1403C
Chess Rush
*special problem
,
combinatorics
,
dp
,
implementation
,
math
3200
x53
1403B
Spring cleaning
*special problem
,
data structures
,
dfs and similar
,
graphs
,
trees
2300
x369
1403A
The Potion of Great Power
*special problem
,
2-sat
,
binary search
,
data structures
,
graphs
,
interactive
,
sortings
,
two pointers
2400
x293
1402C
Star Trek
*special problem
,
combinatorics
,
dfs and similar
,
dp
,
games
,
graphs
,
matrices
,
trees
2600
x205
1402B
Roads
*special problem
,
geometry
,
sortings
2900
x113
1402A
Fancy Fence
*special problem
,
data structures
,
dsu
,
implementation
,
math
,
sortings
1800
x1202
1387C
Viruses
*special problem
,
dp
,
shortest paths
,
string suffix structures
2900
x143
1387B2
Village (Maximum)
*special problem
,
dfs and similar
,
trees
2500
x930
1387B1
Village (Minimum)
*special problem
,
dp
,
greedy
,
trees
2100
x1491
1387A
Graph
*special problem
,
binary search
,
dfs and similar
,
dp
,
math
,
ternary search
2100
x729
1386C
Joker
*special problem
,
bitmasks
,
data structures
,
divide and conquer
,
dsu
2800
x559
1386B
Mixture
*special problem
,
data structures
,
geometry
,
math
,
sortings
2900
x122
1386A
Colors
*special problem
,
binary search
,
constructive algorithms
,
interactive
2700
x307
1356D2
Quantum Classification - 2
*special problem
x128
1356D1
Quantum Classification - 1
*special problem
x137
1356C
Prepare state |01⟩ + |10⟩ + |11⟩
*special problem
x303
1356B2
Decrement
*special problem
x283
1356B1
Increment
*special problem
x283
1356A5
Distinguish Z from -Z
*special problem
x331
1356A4
Distinguish I ⊗ X from CNOT
*special problem
x459
1356A3
Distinguish Z from S
*special problem
x461
1356A2
Distinguish I from Z
*special problem
x488
1356A1
Distinguish I from X
*special problem
x603
1346I
Pac-Man 2.0
*special problem
,
dp
2900
x49
1346H
Game with Segments
*special problem
,
data structures
,
games
2700
x50
1346G
Two IP Cameras
*special problem
,
math
,
number theory
2300
x135
1346F
Dune II: Battle For Arrakis
*special problem
,
data structures
,
greedy
,
math
2000
x228
1346E
Magic Tricks
*special problem
,
dp
,
graphs
1700
x380
1346D
Constructing the Dungeon
*special problem
,
graphs
,
greedy
1600
x506
1346C
Spring Cleaning
*special problem
,
greedy
,
sortings
1600
x608
1346B
Boot Camp
*special problem
,
greedy
1400
x1211
1346A
Color Revolution
*special problem
,
math
1000
x2043
1331H
It's showtime
*special problem
x626
1331G
Lingua Romana
*special problem
x505
1331F
Elementary!
*special problem
,
brute force
,
dp
,
strings
x569
1331E
Jordan Smiley
*special problem
,
dfs and similar
,
geometry
,
implementation
x1212
1331D
Again?
*special problem
,
implementation
x11900
1331C
...And after happily lived ever they
*special problem
,
bitmasks
x3156
1331B
Limericks
*special problem
,
math
,
number theory
x7012
1331A
Is it rated?
*special problem
x17120
1297I
Falling Blocks
*special problem
,
data structures
x31
1297H
Paint the String
*special problem
,
dp
,
strings
x44
1297G
M-numbers
*special problem
,
dp
,
math
x70
1297F
Movie Fan
*special problem
,
data structures
,
greedy
,
implementation
,
sortings
x117
1297E
Modernization of Treeland
*special problem
,
dfs and similar
,
trees
x205
1297D
Bonus Distribution
*special problem
,
binary search
,
greedy
,
sortings
x262
1297C
Dream Team
*special problem
,
greedy
x400
1297B
Cartoons
*special problem
,
implementation
,
sortings
x414
1297A
Likes Display
*special problem
,
implementation
x942
1275F
Шардирование постов
*special problem
,
binary search
,
interactive
x92
1275E3
Контрольная сумма
*special problem
x56
1275E2
Контрольная сумма
*special problem
x130
1275E1
Контрольная сумма
*special problem
x254
1275D
Storage2
*special problem
x421
1275C
#define Задача B ...
*special problem
x669
1275B
Code Review
*special problem
x821
1275A
Скрытый друг
*special problem
x887
1211I
Unusual Graph
*special problem
,
graphs
3000
x40
1211H
Road Repair in Treeland
*special problem
,
binary search
,
dp
,
trees
3100
x45
1211G
King's Path
*special problem
,
math
,
trees
2500
x71
1211F
kotlinkotlinkotlinkotlin...
*special problem
,
graphs
,
implementation
,
strings
2300
x124
1211E
Double Permutation Inc.
*special problem
,
binary search
,
greedy
2000
x194
1211D
Teams
*special problem
,
binary search
,
greedy
,
math
2000
x230
1211C
Ice Cream
*special problem
,
greedy
,
sortings
1700
x489
1211B
Traveling Around the Golden Ring of Berland
*special problem
,
implementation
1500
x765
1211A
Three Problems
*special problem
,
implementation
1000
x1425
1193C
Scissors and Tape
*special problem
,
constructive algorithms
,
geometry
x40
1193B
Magic Tree
*special problem
,
data structures
,
dp
,
trees
x441
1193A
Amusement Park
*special problem
,
dp
,
math
x278
1192C
Cubeword
*special problem
,
brute force
,
dp
,
meet-in-the-middle
x334
1192B
Dynamic Diameter
*special problem
,
data structures
,
dfs and similar
,
divide and conquer
,
trees
x1234
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