World Tour

graphs, shortest paths

Water Level

brute force, graphs, greedy, implementation, math

Strictly Positive Matrix

graphs, math

Roma and Poker

dp, graphs

Cycle In Maze

*special problem, dfs and similar, graphs, greedy, shortest paths

Yaroslav and Time

binary search, graphs, shortest paths

Tourists

data structures, dfs and similar, graphs, trees

Autosynthesis

constructive algorithms, dfs and similar, graphs, greedy, sortings

Infinite Maze

dfs and similar, graphs

Turtle Mission: Robot and the Earthquake

dfs and similar, dp, graphs, shortest paths

Vitaly and Cycle

combinatorics, dfs and similar, graphs, math

Subordinates

constructive algorithms, data structures, graphs, greedy, sortings

Ralph and Mushrooms

dp, graphs

Moment of Bloom

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

Cars

2-sat, constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings

Case of Computer Network

dfs and similar, graphs, trees

AND Graph

bitmasks, dfs and similar, dsu, graphs

Privatization of Roads in Treeland

binary search, constructive algorithms, dfs and similar, graphs, greedy, trees

Block Tower

constructive algorithms, dfs and similar, graphs

Envy

data structures, dsu, graphs

Count Seconds

brute force, constructive algorithms, dp, graphs, implementation, math

Copy of a Copy of a Copy

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

Tourist Reform

dfs and similar, graphs

Leha and another game about graph

constructive algorithms, data structures, dfs and similar, dp, graphs

Pattern Matching

bitmasks, data structures, dfs and similar, graphs, hashing, sortings, strings

Bananas in a Microwave

dfs and similar, dp, graphs, implementation

Analysis of Pathes in Functional Graph

data structures, graphs

Find a Number

dp, graphs, number theory, shortest paths

Weird journey

combinatorics, constructive algorithms, dfs and similar, dsu, graphs

Andrew and Taxi

binary search, dfs and similar, graphs

Underground Lab

constructive algorithms, dfs and similar, graphs

Imbalance Value of a Tree

data structures, dsu, graphs, trees

Work Group

dfs and similar, dp, graphs, strings, trees

Delivery Bears

binary search, flows, graphs

The Road to Berland is Paved With Good Intentions

2-sat, dfs and similar, dsu, graphs

Unstable String Sort

data structures, dfs and similar, dsu, graphs, greedy, implementation, strings

Counting Shortcuts

data structures, dfs and similar, dp, graphs, shortest paths

Omkar and Forest

combinatorics, graphs, math, shortest paths

Mars rover

dfs and similar, graphs, implementation, trees

Edges in MST

dfs and similar, dsu, graphs, sortings

Super M

dfs and similar, dp, graphs, trees

Figure Fixing

constructive algorithms, dfs and similar, dsu, graphs, greedy, math

Ring Road 2

2-sat, dfs and similar, dsu, graphs

Arpa’s overnight party and Mehrdad’s silent entering

constructive algorithms, dfs and similar, graphs

Remove Directed Edges

dfs and similar, dp, graphs

1-2-3

graphs, implementation

Mike and Fish

constructive algorithms, dfs and similar, graphs

Tree Constructing

constructive algorithms, graphs

Party

brute force, dfs and similar, dsu, graphs

Cycles

binary search, constructive algorithms, graphs, greedy

Keshi in Search of AmShZ

graphs, greedy, shortest paths

Fox and Minimal path

bitmasks, constructive algorithms, graphs, implementation, math

Party

dfs and similar, dsu, graphs

Jeremy Bearimy

dfs and similar, graphs, greedy, trees

Clique Partition

brute force, constructive algorithms, graphs, greedy, implementation

Tree Array

brute force, combinatorics, dp, graphs, math, probabilities, trees

Garden of the Sun

constructive algorithms, graphs

Petya and Construction Set

constructive algorithms, graphs, math, sortings, trees

Multihedgehog

dfs and similar, graphs, shortest paths

Text Editor

data structures, dfs and similar, graphs, greedy, shortest paths

Online Courses In BSU

*special problem, dfs and similar, graphs, implementation

Mocha and Diana (Hard Version)

brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, trees, two pointers

Tourism

dfs and similar, dp, dsu, graphs, greedy, trees

Cycle

dfs and similar, graphs

MST Unification

binary search, dsu, graphs, greedy

Dungeons and Candies

dsu, graphs, greedy, trees

Returning Home

graphs, shortest paths, sortings

Divisor Paths

combinatorics, graphs, greedy, math, number theory

Breaking Good

dfs and similar, dp, graphs, shortest paths

Speedrun

brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers

Three States

dfs and similar, graphs, shortest paths

Kingdom and its Cities

dfs and similar, divide and conquer, dp, graphs, sortings, trees

Trips

graphs

Time Travel

binary search, graphs, shortest paths

Inna and Dima

dfs and similar, dp, graphs, implementation

The Shortest Statement

graphs, shortest paths, trees

Complete The Graph

binary search, constructive algorithms, graphs, shortest paths

Pathwalks

data structures, dp, graphs

Double Profiles

graphs, hashing, sortings

Robot Rapping Results Report

binary search, dp, graphs

Tree with Small Distances

dp, graphs, greedy

How Many Paths?

dfs and similar, dp, graphs, trees

Paired Payment

binary search, brute force, constructive algorithms, dp, flows, graphs, shortest paths

Euclid's nightmare

bitmasks, dfs and similar, dsu, graphs, greedy, math, sortings

Dima and Bacteria

dsu, graphs, shortest paths

Rudolf and Subway

constructive algorithms, dfs and similar, graphs, shortest paths

Sum Graph

brute force, constructive algorithms, graphs, implementation, interactive, shortest paths, trees

Completely Searching for Inversions

dfs and similar, dp, graphs

Moving Both Hands

dp, graphs, shortest paths

Innokenty and a Football League

2-sat, graphs, greedy, implementation, shortest paths, strings

Vlad and Trouble at MIT

dfs and similar, dp, flows, graphs, greedy, implementation, trees

Vlad and the Mountains

binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers

System Administrator

graphs

Monsters

brute force, data structures, dfs and similar, dsu, graphs, greedy

Spanning Tree with One Fixed Degree

constructive algorithms, dfs and similar, dsu, graphs, greedy

Array Shuffling

constructive algorithms, graphs, greedy

Centroids

data structures, dfs and similar, dp, graphs, greedy, trees

Labyrinth

dfs and similar, graphs

Minimal Labels

data structures, dfs and similar, graphs, greedy

Gourmet choice

dfs and similar, dp, dsu, graphs, greedy