Heroes

brute force, implementation

Big Maximum Sum

data structures, dp, greedy, implementation, math, trees

Is It Flower?

dfs and similar, graphs, implementation

Schedule

implementation

Cakewalk

*special problem, greedy, implementation, shortest paths

GukiZ and Binary Operations

combinatorics, implementation, math, matrices, number theory

Restoration of string

constructive algorithms, graphs, implementation

Cinema Cashier

dp, implementation

F1 Champions

implementation

New School

binary search, data structures, dp, greedy, implementation, sortings

Numbers Exchange

greedy, implementation, math

Too Many Impostors (hard version)

constructive algorithms, implementation, interactive, math

Genetic Engineering

implementation, two pointers

Evolution of Weasels

greedy, implementation, strings

Colorful Points

data structures, greedy, implementation

The Maths Lecture

dp, implementation

Full Binary Tree Queries

brute force, implementation, trees

Spyke Chatting

implementation

Greedy Shopping

binary search, data structures, divide and conquer, greedy, implementation

Train Maintenance

brute force, data structures, implementation

Door Frames

greedy, implementation

Network Mask

*special problem, bitmasks, brute force, implementation

Yet Another Inversions Problem

combinatorics, data structures, dp, implementation, math, number theory

Points

implementation, math

Insertion Sort

data structures, dp, implementation, math

GukiZ and GukiZiana

binary search, data structures, implementation

Alice and the Doll

brute force, data structures, greedy, implementation

Hockey

implementation, strings

Sum Queries?

data structures, greedy, implementation, math

Death Stars (easy)

implementation

Bulls and Cows

brute force, implementation

Scrambled

*special problem, implementation

Non-Intersecting Subpermutations

combinatorics, dp, implementation, math

AmShZ and G.O.A.T.

binary search, brute force, greedy, implementation, math

Bear and Up-Down

brute force, implementation

Mister B and PR Shifts

data structures, implementation, math

Diana and Liana

greedy, implementation, two pointers

International Olympiad

constructive algorithms, greedy, implementation, math

Username

*special problem, implementation

Nastya and a Game

brute force, implementation, math

Chris and Road

geometry, implementation

Biathlon

binary search, implementation

Lightsabers (easy)

implementation

Serval and Shift-Shift-Shift

bitmasks, brute force, constructive algorithms, implementation

Draw Brackets!

*special problem, implementation

Palindromic Cut

brute force, implementation, strings

ace5 and Task Order

constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings

Toda 2

greedy, implementation

Restoring Increasing Sequence

binary search, brute force, greedy, implementation

Ants

brute force, implementation

Cubes

games, greedy, implementation

Fibonacci Additions

brute force, data structures, hashing, implementation, math

Drazil Likes Heap

constructive algorithms, data structures, greedy, implementation

Hexagonal numbers

*special problem, implementation

Olya and magical square

constructive algorithms, implementation, math

Follow Traffic Rules

implementation, math

WTF?

*special problem, graph matchings, implementation, trees

Cinema

implementation

Logging

implementation, strings

Permutation Sum

bitmasks, combinatorics, dp, implementation, meet-in-the-middle

Vasya's Function

binary search, implementation, math

Walk the Runway

bitmasks, brute force, data structures, dp, graphs, implementation, sortings

Tesla

constructive algorithms, implementation

Noise Level

dfs and similar, implementation, math

Vlad and Avoiding X

bitmasks, brute force, dfs and similar, dp, implementation

Pacifist frogs

implementation

Travel Cards

greedy, implementation, sortings

New Year Cards

brute force, greedy, implementation

Washer, Dryer, Folder

greedy, implementation

Plan of Lectures

constructive algorithms, dfs and similar, dsu, graphs, implementation, sortings, trees

Practice

constructive algorithms, divide and conquer, implementation

Ehab and the Big Finale

constructive algorithms, divide and conquer, graphs, implementation, interactive, trees

Rubik's Cube Coloring (hard version)

brute force, dp, implementation, math, trees

Divisors

brute force, dfs and similar, implementation, number theory

Зингер | color

*special problem, implementation

st-Spanning Tree

dsu, graphs, greedy, implementation

Four Points

brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search

MinimizOR

bitmasks, brute force, data structures, divide and conquer, greedy, implementation, two pointers

Fractal

implementation

Vanya and Brackets

brute force, dp, expression parsing, greedy, implementation, strings

Red-Blue Matrix

brute force, constructive algorithms, implementation, sortings

Hit Ball

geometry, implementation, math

The Fox and the Complete Tree Traversal

constructive algorithms, dp, implementation, math, trees

Police Patrol

greedy, implementation, math, ternary search

Возможно, вы знаете этих людей?

implementation

Sonya and Matrix

brute force, constructive algorithms, implementation

Mastermind

constructive algorithms, graph matchings, greedy, implementation, sortings, two pointers

Vitaly and Advanced Useless Algorithms

dp, greedy, implementation

Brackets in Implications

constructive algorithms, greedy, implementation, math

New Year and Rainbow Roads

graphs, greedy, implementation

Blog Photo

binary search, implementation

Chips

constructive algorithms, implementation

Plane of Tanks: Pro

implementation

Easy Tape Programming

brute force, implementation

Robot Cleaner Revisit

implementation, math, probabilities

Oh Sweet Beaverette

brute force, implementation

Rectangle Puzzle II

implementation, math

Columns Swaps

2-sat, dfs and similar, dsu, graphs, implementation

Harry Potter and the History of Magic

brute force, greedy, implementation

Exotic Queries

data structures, implementation, sortings