Queue at the School

constructive algorithms, graph matchings, implementation, shortest paths

BerSU Ball

dfs and similar, dp, graph matchings, greedy, sortings, two pointers

Similar Pairs

constructive algorithms, graph matchings, greedy, sortings

Division by Two and Permutation

constructive algorithms, flows, graph matchings, greedy, math

Gregor and the Pawn Game

dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation

Chef Monocarp

dp, flows, graph matchings, greedy, math, sortings

Armchairs

dp, flows, graph matchings, greedy

Two Sets

2-sat, dfs and similar, dsu, graph matchings, greedy

Programming Competition

dfs and similar, dp, graph matchings, greedy, trees

Koxia and Game

constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation

Strange Housing

constructive algorithms, dfs and similar, graph matchings, graphs, greedy

Array and Operations

flows, graph matchings, number theory

New Year's Puzzle

brute force, dp, graph matchings, greedy, sortings

Moment of Bloom

constructive algorithms, dfs and similar, graph matchings, graphs, greedy, trees

Little C Loves 3 II

brute force, constructive algorithms, flows, graph matchings

Star MST

combinatorics, dp, graph matchings, math

Serge and Dining Room

binary search, data structures, graph matchings, greedy, implementation, math, trees

Catowice City

2-sat, dfs and similar, graph matchings, graphs

Tree Modification

brute force, constructive algorithms, dfs and similar, graph matchings, graphs, trees

Valuable Paper

binary search, flows, graph matchings, graphs

Maximize Mex

flows, graph matchings, graphs

Hamiltonian Spanning Tree

dfs and similar, dp, graph matchings, greedy, trees

Fair Share

constructive algorithms, data structures, dfs and similar, graph matchings, graphs

WTF?

*special problem, graph matchings, implementation, trees

Session in BSU

binary search, dfs and similar, dsu, graph matchings, graphs

Disks

dfs and similar, geometry, graph matchings, graphs

Amazing Trick

constructive algorithms, graph matchings, math, probabilities

Mastermind

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

Brevity is Soul of Wit

graph matchings

Replace on Segment

dp, graph matchings

Bricks

flows, graph matchings, graphs

Summoning Minions

constructive algorithms, dp, flows, graph matchings, greedy, sortings

Rectangle Painting 2

flows, graph matchings, graphs

The Most Reckless Defense

bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths

House Planning

constructive algorithms, data structures, graph matchings, greedy

Double Sort II

dfs and similar, flows, graph matchings, graphs

George and Interesting Graph

graph matchings

Exploration plan

binary search, flows, graph matchings, shortest paths

Bicolored Segments

data structures, dp, graph matchings, sortings

Traveling Graph

bitmasks, graph matchings, graphs

Buying Sets

flows, graph matchings

Allowed Letters

bitmasks, flows, graph matchings, graphs, greedy

Beautiful League

constructive algorithms, flows, graph matchings

Birthday

graph matchings, strings

Vasya and Endless Credits

dp, flows, graph matchings, graphs, sortings

Button Lock

flows, graph matchings, graphs

Round Marriage

binary search, graph matchings, greedy

Alice and Recoloring 2

constructive algorithms, flows, graph matchings, greedy

Access Levels

bitmasks, dsu, flows, graph matchings

MST with Matching

bitmasks, brute force, dsu, graph matchings, trees

Robot and Candies

data structures, graph matchings, greedy

Tidying Up

flows, graph matchings

Euclid Guess

constructive algorithms, flows, graph matchings, math, number theory

AquaMoon and Permutations

2-sat, brute force, combinatorics, constructive algorithms, graph matchings, graphs

Privatization of Roads in Berland

flows, graph matchings, graphs

Antichain

dp, graph matchings, greedy

The Doctor Meets Vader (Medium)

flows, graph matchings, graphs, shortest paths, sortings

Making It Bipartite

flows, graph matchings, graphs, number theory

Madoka and The First Session

constructive algorithms, flows, graph matchings, graphs, implementation

Sum of Matchings

brute force, combinatorics, constructive algorithms, dfs and similar, graph matchings, greedy, math

Two Arrays

binary search, games, graph matchings

Bridge Club

flows, graph matchings, graphs, greedy

Dominoes

combinatorics, flows, graph matchings, greedy

Showing Off

flows, graph matchings, greedy, implementation

Random Forest Rank

dp, graph matchings, math, trees

Fishermen

flows, graph matchings, greedy

Deciphering

flows, graph matchings

Tetris revisited

constructive algorithms, graph matchings, greedy, math

Last chance

data structures, flows, graph matchings, graphs, trees

Matching Reduction

brute force, constructive algorithms, dfs and similar, flows, graph matchings, graphs, interactive

Oleg and chess

data structures, divide and conquer, flows, graph matchings

Tree

graph matchings

Shoe Store

dp, graph matchings, greedy, sortings, two pointers

Goblins And Gnomes

brute force, dp, flows, graph matchings

New Year and Social Network

data structures, graph matchings, graphs, math, trees

Permanent

dp, graph matchings, math, meet-in-the-middle

Electric Scheme

flows, graph matchings

Permutation for Burenka

data structures, graph matchings, greedy, math, trees

Party

bitmasks, brute force, graph matchings

Cactus Not Enough

dfs and similar, graph matchings, graphs

Wizards and Roads

data structures, divide and conquer, graph matchings, graphs, greedy

Hero to Zero

graph matchings, math

Recover a functional graph

graph matchings

Sloth

dfs and similar, dp, graph matchings, trees

Good Graph

bitmasks, dfs and similar, graph matchings, graphs, implementation

Maximum Adjacent Pairs

constructive algorithms, graph matchings

Contingency Plan 2

graph matchings

Tanya is 5!

graph matchings, graphs, greedy, schedules

Excursions

*special problem, constructive algorithms, dfs and similar, flows, graph matchings, graphs