Making a String

greedy, sortings

Birthday

greedy, math, probabilities

Array GCD

dp, greedy, number theory

Ants in Leaves

dfs and similar, greedy, sortings, trees

Pearls in a Row

greedy

Hamiltonian Spanning Tree

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

Dinner with Emma

games, greedy

Running Track

dp, greedy, strings, trees

Skills

binary search, brute force, dp, greedy, sortings, two pointers

The Union of k-Segments

greedy, sortings

New Year and Three Musketeers

data structures, greedy, sortings

Frogs and mosquitoes

data structures, greedy

Gadgets for dollars and pounds

binary search, greedy, two pointers

USB Flash Drives

greedy, implementation, sortings

Sorting Railway Cars

constructive algorithms, greedy

More Cowbell

binary search, greedy

Alternative Thinking

dp, greedy, math

Make Palindrome

constructive algorithms, greedy, strings

Restaurant

dp, greedy, sortings

Wilbur and Points

combinatorics, greedy, sortings

Wilbur and Array

greedy, implementation

Edo and Magnets

brute force, greedy, implementation, two pointers

Duff and Meat

greedy

Duff and Weight Lifting

greedy

Anton and Ira

constructive algorithms, greedy, math

Marina and Vasya

constructive algorithms, greedy, strings

Robot's Task

greedy, implementation

GCD Table

constructive algorithms, greedy, number theory

Kojiro and Furrari

dp, greedy

Walking!

constructive algorithms, greedy

LCS Again

dp, greedy

"Or" Game

brute force, greedy

Points on Plane

constructive algorithms, divide and conquer, geometry, greedy, sortings

Invariance of Tree

constructive algorithms, dfs and similar, greedy, trees

Bulbo

dp, greedy

Bear and Elections

greedy, implementation

Bear and Bowling

data structures, greedy

Order Book

data structures, greedy, implementation, sortings

CNF 2

constructive algorithms, dfs and similar, graphs, greedy

Minimization

dp, greedy, sortings

Simple Game

constructive algorithms, games, greedy, implementation, math

Inventory

greedy, math

New Language

2-sat, greedy

One-Dimensional Battle Ships

binary search, data structures, greedy, sortings

Lineland Mail

greedy, implementation

Replicating Processes

constructive algorithms, greedy

Amr and Chemistry

brute force, graphs, greedy, math, shortest paths

Arthur and Table

brute force, data structures, dp, greedy, math, sortings

Ilya and Diplomas

greedy, implementation, math

Case of the Zeros and Ones

greedy

Case of Fugitive

data structures, greedy, sortings

Ohana Cleans Up

brute force, greedy, strings

Nudist Beach

binary search, graphs, greedy

Kyoya and Permutation

binary search, combinatorics, constructive algorithms, greedy, implementation, math

Vanya and Brackets

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

Vanya and Scales

brute force, dp, greedy, math, meet-in-the-middle, number theory

GukiZ hates Boxes

binary search, greedy

Brackets in Implications

constructive algorithms, greedy, implementation, math

Two Substrings

brute force, dp, greedy, implementation, strings

Happy Line

constructive algorithms, greedy, sortings

Haar Features

greedy, implementation

Looksery Party

constructive algorithms, dfs and similar, graphs, greedy

Mike and Fun

brute force, dp, greedy, implementation

Mike and Frog

brute force, greedy, implementation, math

Soldier and Badges

brute force, greedy, implementation, sortings

Paths and Trees

graphs, greedy, shortest paths

Queue

greedy, implementation, sortings

Woodcutters

dp, greedy

Equidistant String

greedy

Quest

dp, greedy

School Marks

greedy, implementation

Summer Dichotomy

2-sat, data structures, dfs and similar, greedy

Tourist's Notes

binary search, brute force, greedy, implementation, math

Quasi Binary

constructive algorithms, dp, greedy, implementation

Tavas and Malekas

greedy, hashing, string suffix structures, strings

Tavas and Karafs

binary search, greedy, math

Berland Local Positioning System

constructive algorithms, greedy, hashing, implementation

Handshakes

binary search, constructive algorithms, data structures, greedy

Covered Path

dp, greedy, math

Correcting Mistakes

constructive algorithms, dp, greedy, hashing, strings, two pointers

Board Game

games, greedy, implementation, math

Berland Miners

binary search, data structures, dfs and similar, greedy, trees

Group Photo 2 (online mirror version)

brute force, greedy, sortings

Clique Problem

data structures, dp, greedy, implementation, sortings

Error Correct System

greedy

Spiders Evil Plan

greedy, trees

Om Nom and Candies

brute force, greedy, math

Om Nom and Dark Park

dfs and similar, greedy, implementation

Arthur and Walls

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

Ilya and Sticks

greedy, math, sortings

Pasha and String

constructive algorithms, greedy, math, strings

Vitaliy and Pie

greedy, hashing, strings

And Yet Another Bracket Sequence

data structures, greedy, hashing, string suffix structures, strings

Social Network

greedy, two pointers

Фото на память - 2 (round version)

dp, greedy

Name Quest

*special problem, greedy

Chicken or Fish?

greedy

Shop

greedy

Cubes

games, greedy, implementation

Two Buttons

dfs and similar, graphs, greedy, implementation, math, shortest paths