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Problems
#
Name
1776L
Controllers
binary search
,
math
1500
x5331
1776K
Uniform Chemistry
dp
,
math
3200
x65
1776J
Italian Data Centers
graphs
,
shortest paths
2500
x612
1776I
Spinach Pizza
games
,
geometry
,
greedy
,
interactive
2500
x642
1776H
Beppa and SwerChat
two pointers
1300
x6077
1776G
Another Wine Tasting Event
combinatorics
,
constructive algorithms
,
math
,
strings
2100
x1966
1776F
Train Splitting
constructive algorithms
,
graphs
,
greedy
1700
x3272
1776E
Crossing the Railways
data structures
,
dp
3500
x63
1776D
Teamwork
constructive algorithms
,
greedy
,
math
2800
x343
1776C
Library game
games
,
greedy
,
interactive
,
sortings
2500
x763
1776B
Vittorio Plays with LEGO Bricks
dp
,
geometry
2200
x1251
1776A
Walking Boy
greedy
800
x6795
1775F
Laboratory on Pluto
constructive algorithms
,
dp
,
greedy
,
math
2500
x745
1775E
The Human Equation
greedy
,
implementation
2100
x3053
1775D
Friendly Spiders
dfs and similar
,
graphs
,
math
,
number theory
,
shortest paths
1800
x5838
1775C
Interesting Sequence
bitmasks
,
math
1600
x9774
1775B
Gardener and the Array
bitmasks
,
constructive algorithms
1300
x12762
1775A2
Gardener and the Capybaras (hard version)
constructive algorithms
,
greedy
900
x18351
1775A1
Gardener and the Capybaras (easy version)
brute force
,
constructive algorithms
,
implementation
800
x19359
1774H
Maximum Permutation
constructive algorithms
3500
x130
1774G
Segment Covering
brute force
,
combinatorics
,
constructive algorithms
,
data structures
,
dp
,
trees
3200
x394
1774F2
Magician and Pigs (Hard Version)
binary search
,
brute force
,
data structures
,
implementation
2700
x645
1774F1
Magician and Pigs (Easy Version)
brute force
,
data structures
,
implementation
2400
x1025
1774E
Two Chess Pieces
dfs and similar
,
dp
,
greedy
,
trees
1900
x3331
1774D
Same Count One
brute force
,
constructive algorithms
,
greedy
,
implementation
,
two pointers
1600
x7477
1774C
Ice and Fire
constructive algorithms
,
dp
,
greedy
1300
x11640
1774B
Coloring
constructive algorithms
,
greedy
,
math
1500
x11683
1774A
Add Plus Minus Sign
constructive algorithms
,
math
800
x22047
1773L
Lisa's Sequences
dp
3500
x29
1773K
King's Puzzle
constructive algorithms
1900
x1385
1773J
Jumbled Trees
constructive algorithms
,
math
2900
x103
1773I
Interactive Factorial Guessing
brute force
,
games
,
implementation
,
interactive
2500
x458
1773H
Hot and Cold
binary search
,
interactive
2600
x343
1773G
Game of Questions
bitmasks
,
combinatorics
,
dp
,
fft
,
math
,
probabilities
2800
x324
1773F
Football
constructive algorithms
800
x3964
1773E
Easy Assembly
greedy
,
sortings
1400
x4693
1773D
Dominoes
combinatorics
,
flows
,
graph matchings
,
greedy
2600
x428
1773C
Cactus Meets Torus
3500
x29
1773B
BinCoin
binary search
,
divide and conquer
,
hashing
,
implementation
,
probabilities
,
trees
2200
x738
1773A
Amazing Trick
constructive algorithms
,
graph matchings
,
math
,
probabilities
1900
x1488
1772G
Gaining Rating
binary search
,
greedy
,
implementation
,
math
,
sortings
,
two pointers
2200
x1281
1772F
Copy of a Copy of a Copy
constructive algorithms
,
dfs and similar
,
graphs
,
implementation
,
sortings
2000
x2247
1772E
Permutation Game
games
1700
x6467
1772D
Absolute Sorting
constructive algorithms
,
math
1400
x15104
1772C
Different Differences
constructive algorithms
,
greedy
,
math
1000
x22809
1772B
Matrix Rotation
brute force
,
implementation
800
x28368
1772A
A+B?
implementation
800
x44583
1771F
Hossam and Range Minimum Query
binary search
,
bitmasks
,
data structures
,
hashing
,
probabilities
,
strings
,
trees
2500
x979
1771E
Hossam and a Letter
brute force
,
dp
,
implementation
,
two pointers
2500
x665
1771D
Hossam and (sub-)palindromic tree
brute force
,
data structures
,
dfs and similar
,
dp
,
strings
,
trees
2100
x2615
1771C
Hossam and Trainees
greedy
,
math
,
number theory
1600
x9141
1771B
Hossam and Friends
binary search
,
constructive algorithms
,
dp
,
two pointers
1400
x13124
1771A
Hossam and Combinatorics
combinatorics
,
math
,
sortings
900
x22174
1770H
Koxia, Mahiru and Winter Festival
constructive algorithms
3500
x100
1770G
Koxia and Bracket
divide and conquer
,
fft
,
math
3400
x155
1770F
Koxia and Sequence
bitmasks
,
combinatorics
,
dp
,
math
,
number theory
3100
x622
1770E
Koxia and Tree
combinatorics
,
dfs and similar
,
dp
,
dsu
,
math
,
probabilities
,
trees
2400
x1306
1770D
Koxia and Game
constructive algorithms
,
data structures
,
dfs and similar
,
dsu
,
flows
,
games
,
graph matchings
,
graphs
,
implementation
2000
x3691
1770C
Koxia and Number Theory
brute force
,
chinese remainder theorem
,
math
,
number theory
1700
x8319
1770B
Koxia and Permutation
constructive algorithms
1000
x19055
1770A
Koxia and Whiteboards
brute force
,
greedy
1000
x22979
1769D3
Игра в Девятку III
*special problem
,
brute force
2300
x118
1769D2
Игра в Девятку II
*special problem
,
brute force
2200
x189
1769D1
Игра в Девятку I
*special problem
,
brute force
,
dp
1800
x370
1769C2
Подкрутка II
*special problem
,
dp
1300
x919
1769C1
Подкрутка I
*special problem
,
brute force
,
dp
,
greedy
1200
x933
1769B2
Копирование файлов II
*special problem
,
binary search
,
brute force
,
math
1400
x859
1769B1
Копирование файлов I
*special problem
,
brute force
,
implementation
,
math
1000
x1318
1769A
Узкая дорога
*special problem
,
math
800
x1911
1768F
Wonderful Jump
dp
,
greedy
2900
x792
1768E
Partial Sorting
combinatorics
,
math
,
number theory
2300
x1795
1768D
Lucky Permutation
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
1800
x6756
1768C
Elemental Decompress
constructive algorithms
,
greedy
,
implementation
,
sortings
1300
x13643
1768B
Quick Sort
greedy
,
math
900
x22173
1768A
Greatest Convex
greedy
,
math
,
number theory
800
x28123
1767F
Two Subtrees
data structures
,
trees
3100
x251
1767E
Algebra Flash
bitmasks
,
brute force
,
dp
,
graphs
,
math
,
meet-in-the-middle
,
trees
2500
x848
1767D
Playoff
combinatorics
,
constructive algorithms
,
dp
,
greedy
,
math
1500
x9507
1767C
Count Binary Strings
data structures
,
dp
2100
x2535
1767B
Block Towers
data structures
,
greedy
,
sortings
800
x19701
1767A
Cut the Triangle
implementation
800
x20187
1766F
MCF
flows
2800
x261
1766E
Decomposition
binary search
,
brute force
,
data structures
,
divide and conquer
,
dp
,
two pointers
2300
x1141
1766D
Lucky Chains
math
,
number theory
1600
x8495
1766C
Hamiltonian Wall
dp
,
implementation
1300
x13198
1766B
Notepad#
implementation
1000
x20278
1766A
Extremely Round
brute force
,
implementation
800
x24347
1765N
Number Reduction
greedy
1500
x4475
1765M
Minimum LCM
math
,
number theory
1000
x13046
1765L
Project Manager
brute force
,
data structures
,
implementation
2400
x564
1765K
Torus Path
greedy
,
math
1500
x5427
1765J
Hero to Zero
graph matchings
,
math
2900
x188
1765I
Infinite Chess
implementation
,
shortest paths
2800
x182
1765H
Hospital Queue
binary search
,
graphs
,
greedy
,
implementation
2200
x1197
1765G
Guess the String
constructive algorithms
,
interactive
,
probabilities
2600
x371
1765F
Chemistry Lab
dp
,
geometry
,
probabilities
2200
x589
1765E
Exchange
brute force
,
math
1000
x9606
1765D
Watch the Videos
binary search
,
constructive algorithms
,
two pointers
1700
x3950
1765C
Card Guessing
combinatorics
,
dp
,
probabilities
2600
x369
1765B
Broken Keyboard
greedy
800
x8743
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