Alpha planetary system

constructive algorithms, graphs, shortest paths

Railway Construction

brute force, constructive algorithms, data structures, graphs, shortest paths

Gnomes of Might and Magic

data structures, graphs, implementation, shortest paths

Viruses

*special problem, dp, shortest paths, string suffix structures

Trains and Airplanes

dfs and similar, graphs, shortest paths, trees

Knightmare (easy)

graphs, interactive, shortest paths

Knightmare (hard)

graphs, interactive, shortest paths

Show Must Go On

binary search, brute force, greedy, shortest paths

Princess and Her Shadow

constructive algorithms, shortest paths

The Doctor Meets Vader (Hard)

flows, shortest paths

Iqea

data structures, dfs and similar, divide and conquer, dsu, shortest paths, trees

Snowy Mountain

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

Reindeer Games

binary search, constructive algorithms, data structures, divide and conquer, flows, graphs, shortest paths

Chess

math, shortest paths

Dirty Arkady's Kitchen

data structures, dp, graphs, shortest paths

Four Vertices

constructive algorithms, data structures, graphs, greedy, implementation, shortest paths

Doe Graphs

constructive algorithms, divide and conquer, dp, graphs, shortest paths

Ship's Shortest Path

geometry, shortest paths

Battlefield

geometry, graphs, implementation, shortest paths

A Game With Numbers

games, graphs, shortest paths

Winning Strategy

binary search, graphs, math, shortest paths

Anti-Tetris

constructive algorithms, graphs, shortest paths

Appleman and a Game

binary search, shortest paths, strings

Cow and Exercise

flows, graphs, shortest paths

Down Below

binary search, dfs and similar, graphs, greedy, meet-in-the-middle, shortest paths

Oppa Funcan Style Remastered

graphs, math, number theory, shortest paths

Monsters and Diamonds

dfs and similar, graphs, shortest paths

Ones

dp, greedy, shortest paths

Double Tree

data structures, divide and conquer, shortest paths, trees

Shortest path

brute force, geometry, math, shortest paths

Meeting Her

dp, graphs, shortest paths

Game with Points

dp, graphs, implementation, shortest paths

Omkar and Pies

bitmasks, dfs and similar, dp, math, shortest paths

Track

graphs, greedy, shortest paths

Timofey and a flat tree

data structures, graphs, hashing, shortest paths, trees

Antennas

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

Armor and Weapons

brute force, dp, greedy, shortest paths

Rats

brute force, dfs and similar, graphs, implementation, shortest paths

Indecisive Taxi Fee

data structures, graphs, shortest paths

Evacuation

flows, graphs, shortest paths

Circling Round Treasures

bitmasks, shortest paths

Trial for Chief

graphs, greedy, shortest paths

Fetch the Treasure

brute force, data structures, graphs, shortest paths

Not Splitting

geometry, graphs, greedy, implementation, shortest paths

Dynamic Shortest Path

graphs, shortest paths

Jumping Around

binary search, data structures, divide and conquer, dp, dsu, graphs, shortest paths

Levko and Game

graphs, greedy, shortest paths

Perishable Roads

dp, graphs, shortest paths

Treeland and Viruses

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

The Doctor Meets Vader (Medium)

flows, graph matchings, graphs, shortest paths, sortings

Serious Business

data structures, divide and conquer, dp, implementation, shortest paths

An unavoidable detour for home

combinatorics, dp, graphs, shortest paths

Robot Control

dp, graphs, shortest paths

BerDonalds

graphs, math, shortest paths

Opening Portals

dsu, graphs, shortest paths

Christmas Chocolates

dfs and similar, dp, games, graphs, implementation, math, number theory, shortest paths, trees

Distance Tree (hard version)

binary search, dfs and similar, shortest paths, trees

Quarrel

graphs, shortest paths

Petya and Pipes

flows, graphs, shortest paths

Playing on Graph

graphs, shortest paths

Flights

graphs, shortest paths

Take-off Ramps

graphs, shortest paths

The Classic Problem

data structures, graphs, shortest paths

Logical Expression

bitmasks, dp, shortest paths

PolandBall and White-Red graph

constructive algorithms, graphs, shortest paths

Exploration plan

binary search, flows, graph matchings, shortest paths

Password

bitmasks, dp, shortest paths

Capitalism

constructive algorithms, dfs and similar, graphs, shortest paths

Daleks' Invasion (medium)

dfs and similar, graphs, shortest paths, trees

Run for beer

dfs and similar, shortest paths

Elevator

dp, graphs, shortest paths

Koala and Notebook

data structures, dfs and similar, graphs, shortest paths, strings, trees

Distance Tree (easy version)

binary search, data structures, dfs and similar, graphs, shortest paths, trees

Sonya and Ice Cream

binary search, data structures, dp, greedy, shortest paths, trees

Job Lookup

constructive algorithms, dp, shortest paths, trees

Team Rocket Rises Again

data structures, graphs, shortest paths

Super Jaber

dfs and similar, graphs, implementation, shortest paths

BFS Trees

combinatorics, dfs and similar, graphs, math, shortest paths, trees

Intergalaxy Trips

probabilities, shortest paths

Knights

geometry, graphs, shortest paths, sortings

Hyakugoku and Ladders

dp, probabilities, shortest paths

Valera and Fools

dfs and similar, dp, graphs, shortest paths

The Hidden Pair (Hard Version)

binary search, dfs and similar, graphs, interactive, shortest paths, trees

Cheap Robot

binary search, dsu, graphs, shortest paths, trees

It's a bird! No, it's a plane! No, it's AaParsa!

constructive algorithms, graphs, shortest paths

Dima and Trap Graph

binary search, data structures, dfs and similar, dsu, shortest paths, two pointers

Okabe and City

dfs and similar, graphs, shortest paths

The Hidden Pair (Easy Version)

binary search, dfs and similar, graphs, interactive, shortest paths, trees

Three Pieces

dfs and similar, dp, shortest paths

President's Path

dp, graphs, shortest paths

Culture Code

binary search, combinatorics, data structures, dp, shortest paths, sortings

Useful Edges

graphs, shortest paths

Berland and the Shortest Paths

brute force, dfs and similar, graphs, shortest paths

Graph Transpositions

dfs and similar, graphs, greedy, shortest paths

Arson In Berland Forest

binary search, graphs, graphs, shortest paths

Egor in the Republic of Dagestan

constructive algorithms, dfs and similar, dp, graphs, greedy, shortest paths

President and Roads

dfs and similar, graphs, hashing, shortest paths

Vanya and Treasure

data structures, dp, graphs, shortest paths

Arthur and Walls

constructive algorithms, data structures, graphs, greedy, shortest paths

Presents in Bankopolis

dp, graphs, shortest paths