yesterday

Split

data structures
dp
greedy

yesterday

Blue and Red of Our Faculty!

dp

yesterday

Danger of Mad Snakes

combinatorics
dp
math

Sept. 24, 2020

Pokémon Army (easy version)

dp
greedy
constructive algorithms

Sept. 24, 2020

Pokémon Army (hard version)

data structures
dp
greedy
divide and conquer
implementation

Sept. 24, 2020

Battle Lemmings

dp
brute force
geometry

Sept. 14, 2020

Mortal Kombat Tower

dp
greedy
graphs
shortest paths

Sept. 12, 2020

Maximum Product

greedy
sortings
implementation
brute force
dp

Sept. 8, 2020

Discrete Centrifugal Jumps

data structures
dp
graphs

Sept. 8, 2020

Egor in the Republic of Dagestan

constructive algorithms
dp
graphs
shortest paths
greedy
dfs and similar

Sept. 6, 2020

Tree Tag

dfs and similar
dp
games
trees

Sept. 6, 2020

Tree Tag

dfs and similar
dp
games
trees
constructive algorithms
strings

Sept. 4, 2020

Two Platforms

two pointers
dp
sortings
binary search

Sept. 4, 2020

Subsequences of Length Two

dp
strings

Aug. 30, 2020

Monster Invaders

dp
greedy
implementation

Aug. 30, 2020

Monster Invaders

dp
greedy

Aug. 28, 2020

Chess Rush

*special
combinatorics
dp
implementation
math

Aug. 26, 2020

Star Trek

*special
combinatorics
dfs and similar
dp
games
graphs
trees
matrices

Aug. 25, 2020

Clear the Multiset

dp
greedy
divide and conquer
data structures

Aug. 25, 2020

xprime Substrings

dp
strings
string suffix structures
brute force
dfs and similar

Aug. 25, 2020

Mercenaries

bitmasks
combinatorics
two pointers
math
brute force
dsu
dp

Aug. 21, 2020

Free restricted flights

dp
graphs
shortest paths

Aug. 21, 2020

Great dinner

combinatorics
dp
math

Aug. 21, 2020

Incredible photography

data structures
dp

Aug. 21, 2020

Maximum Distributed Tree

greedy
number theory
sortings
trees
dfs and similar
dp
implementation
math

Aug. 16, 2020

Omkar and Bed Wars

greedy
dp

Aug. 16, 2020

Omkar and Pies

bitmasks
math
dp
dfs and similar
shortest paths

Aug. 16, 2020

ZS Shuffles Cards

combinatorics
math
probabilities
dp

Aug. 14, 2020

Good Subarrays

data structures
math
dp

Aug. 14, 2020

Colored Rectangles

dp
greedy
sortings

Aug. 14, 2020

Controversial Rounds

dp
two pointers
binary search
data structures
greedy

Aug. 12, 2020

Boboniu Chats with Du

dp
greedy
two pointers
sortings

Aug. 12, 2020

Boboniu and Jianghu

dp
sortings
trees
greedy

Aug. 12, 2020

Boboniu and Bit Operations

bitmasks
brute force
dp
greedy

Aug. 12, 2020

Boboniu Chats with Du

dp
greedy
brute force
sortings

Aug. 9, 2020

Cyclic Permutations

graphs
math
combinatorics
dp

Aug. 9, 2020

505

bitmasks
brute force
dp
implementation
constructive algorithms
greedy

Aug. 7, 2020

Rarity and New Dress

dp
implementation
dfs and similar
shortest paths

Aug. 7, 2020

Twilight and Ancient Scroll (easier version)

dp
implementation
string suffix structures
strings
hashing

Aug. 7, 2020

Twilight and Ancient Scroll (harder version)

dp
implementation
strings
string suffix structures
hashing
two pointers

Aug. 5, 2020

Yet Another Segments Subset

dp
sortings
data structures
graphs

July 29, 2020

Array Walk

dp
greedy
brute force

July 29, 2020

Good String

brute force
dp
greedy
two pointers

July 29, 2020

Bicolored Segments

data structures
dp
graph matchings
sortings

July 29, 2020

Directing Edges

graphs
trees
dfs and similar
dp

July 24, 2020

GameGame

games
math
constructive algorithms
greedy
bitmasks
dp

July 24, 2020

String Transformation 2

dp
graphs
trees
bitmasks

July 24, 2020

Strange Operation

data structures
dp
combinatorics

July 24, 2020

Koa and the Beach (Easy Version)

greedy
dp
brute force

July 24, 2020

Koa and the Beach (Hard Version)

greedy
constructive algorithms
dp
implementation

more
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