Sept. 19, 2020

Digit Game

games
implementation
greedy

Sept. 19, 2020

Stairs

constructive algorithms
implementation
brute force
greedy
math

Sept. 19, 2020

Killjoy

implementation
math
greedy

Sept. 19, 2020

Sage's Birthday (easy version)

binary search
sortings
greedy
constructive algorithms

Sept. 19, 2020

Sage's Birthday (hard version)

binary search
sortings
greedy
two pointers
brute force
constructive algorithms

Sept. 19, 2020

Decryption

constructive algorithms
math
number theory
implementation

Sept. 19, 2020

Rain of Fire

binary search
graphs
dsu
dfs and similar
implementation
data structures

Sept. 14, 2020

Buying Torches

math

Sept. 14, 2020

Negative Prefixes

greedy
sortings

Sept. 14, 2020

Mortal Kombat Tower

dp
greedy
graphs
shortest paths

Sept. 14, 2020

Trash Problem

data structures
implementation

Sept. 14, 2020

Expected Damage

binary search
probabilities
combinatorics

Sept. 14, 2020

Equal Product

two pointers
data structures
math
number theory

Sept. 14, 2020

Three Occurrences

hashing
two pointers
data structures
probabilities

Sept. 12, 2020

Subset Mex

math
greedy
implementation

Sept. 12, 2020

Maximum Product

greedy
sortings
implementation
brute force
dp

Sept. 12, 2020

Link Cut Centroids

dfs and similar
graphs
constructive algorithms
trees

Sept. 12, 2020

Three Sequences

math
data structures
greedy
constructive algorithms

Sept. 12, 2020

Deleting Numbers

interactive
number theory
math

Sept. 8, 2020

Ahahahahahahahaha

constructive algorithms
math
fft
string suffix structures

Sept. 8, 2020

Big Vova

math
greedy
number theory
brute force

Sept. 8, 2020

Chocolate Bunny

interactive
math
constructive algorithms
two pointers

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

Balanced Bitstring

implementation
strings

Sept. 6, 2020

Tree Tag

dfs and similar
dp
games
trees

Sept. 6, 2020

Fixed Point Removal

data structures
binary search
greedy
two pointers
constructive algorithms

Sept. 6, 2020

Game of Pairs

interactive
math
constructive algorithms
dfs and similar
number theory

Sept. 6, 2020

Bricks

flows
graph matchings
graphs

Sept. 6, 2020

Permutation Forgery

constructive algorithms

Sept. 6, 2020

Array Cancellation

constructive algorithms
implementation

Sept. 6, 2020

Balanced Bitstring

implementation
strings
greedy

Sept. 6, 2020

Tree Tag

dfs and similar
dp
games
trees
constructive algorithms
strings

Sept. 6, 2020

Fixed Point Removal

data structures
sortings
binary search

Sept. 4, 2020

Yet Another Two Integers Problem

math
greedy

Sept. 4, 2020

Minimum Product

math
brute force
greedy

Sept. 4, 2020

Yet Another Array Restoration

math
brute force
number theory

Sept. 4, 2020

Decrease the Sum of Digits

math
greedy

Sept. 4, 2020

Two Platforms

two pointers
dp
sortings
binary search

Sept. 4, 2020

Subsequences of Length Two

dp
strings

Aug. 30, 2020

Multiples of Length

greedy
number theory
constructive algorithms

Aug. 30, 2020

Stoned Game

games
greedy
brute force
constructive algorithms

Aug. 30, 2020

Monster Invaders

dp
greedy
implementation

Aug. 30, 2020

Rainbow Rectangles

data structures
two pointers
sortings

Aug. 30, 2020

Distance Matching

constructive algorithms
dfs and similar
trees

Aug. 30, 2020

Juggling Letters

greedy
strings

Aug. 30, 2020

Power Sequence

brute force
math
number theory
sortings

Aug. 30, 2020

Multiples of Length

greedy
number theory
constructive algorithms
math

Aug. 30, 2020

Stoned Game

games
greedy
implementation
brute force

Aug. 30, 2020

Monster Invaders

dp
greedy

more
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