Neverending competitions

implementation, math

Timofey and cubes

constructive algorithms, implementation

Taymyr is calling you

brute force, implementation, math

Timofey and remoduling

brute force, implementation, math, number theory

Timofey and a tree

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

Maximum path

dp, greedy, implementation

USB vs. PS/2

greedy, implementation, sortings, two pointers

Dasha and Photos

brute force, data structures, dp, implementation

Dasha and Password

brute force, dp, implementation

Dasha and friends

brute force, implementation, math

Dasha and Stairs

brute force, constructive algorithms, implementation, math

Petr and a calendar

implementation, math

Unfair Poll

binary search, constructive algorithms, implementation, math

Blown Garland

brute force, implementation, number theory

Holiday Of Equality

implementation, math

Gotta Catch Em' All!

implementation

Vladik and chat

brute force, constructive algorithms, dp, implementation, strings

Ilya and tic-tac-toe game

brute force, implementation

Lesha and array splitting

constructive algorithms, greedy, implementation

Interactive Bulls and Cows (Easy)

brute force, constructive algorithms, implementation

New Year and Finding Roots

constructive algorithms, implementation, interactive, trees

New Year and Fireworks

brute force, data structures, dfs and similar, dp, implementation

New Year and North Pole

geometry, implementation

New Year and Hurry

binary search, brute force, implementation, math

Voting

greedy, implementation, two pointers

Bachgold Problem

greedy, implementation, math, number theory

Santa Claus and Keyboard Check

implementation, strings

Santa Claus and a Place in a Class

implementation, math

Comments

dfs and similar, expression parsing, implementation, strings

Servers

implementation

Mammoth's Genome Decoding

implementation, strings

Numbers Exchange

greedy, implementation, math

Tram

constructive algorithms, implementation, math

Decoding

implementation, strings

Compote

implementation, math

Hongcow Solves A Puzzle

implementation

Hongcow Learns the Cyclic Shift

implementation, strings

Chloe and the sequence

binary search, bitmasks, constructive algorithms, implementation

Vladik and flights

constructive algorithms, greedy, implementation

Arpa’s hard exam and Mehrdad’s naive cheat

implementation, math, number theory

Alyona and copybooks

brute force, implementation

Ostap and Grasshopper

implementation, strings

Anton and School

bitmasks, constructive algorithms, implementation, math

Anton and Chess

implementation

Anton and Digits

brute force, greedy, implementation, math

Anton and Danik

implementation, strings

Grasshopper And the String

implementation

Sanatorium

binary search, constructive algorithms, greedy, implementation, math

Buy a Shovel

brute force, constructive algorithms, implementation, math

Video Cards

brute force, data structures, implementation, math, number theory

Night at the Museum

implementation, strings

Delete Them

constructive algorithms, implementation

Car Repair Shop

implementation

Award Ceremony

greedy, implementation

Running Over The Bridges

greedy, implementation, math

Toda 2

greedy, implementation

Spotlights

dp, implementation

Interview with Oleg

implementation, strings

Bill Total Value

expression parsing, implementation, strings

Hidden Word

brute force, constructive algorithms, implementation, strings

Food on the Plane

implementation, math

Jumping Ball

implementation

Ray Tracing

greedy, hashing, implementation, math, number theory, sortings

Batch Sort

brute force, greedy, implementation, math

Checking the Calendar

implementation

st-Spanning Tree

dsu, graphs, greedy, implementation

Lakes in Berland

dfs and similar, dsu, graphs, greedy, implementation

Text Document Analysis

expression parsing, implementation, strings

The New Year: Meeting Friends

implementation, math, sortings

Cyclic Cipher

chinese remainder theorem, data structures, implementation, number theory, two pointers

Verse Pattern

implementation, strings

Broken Clock

brute force, implementation

Passwords

implementation, math, sortings, strings

One-dimensional Japanese Crossword

implementation

Cipher

implementation

Vitya in the Countryside

implementation

Efim and Strange Grade

dp, implementation, math

Potions Homework

implementation, sortings

Crazy Computer

implementation

Filya and Homework

implementation, sortings

Meeting of Old Friends

implementation, math

Sonya and Queries

data structures, implementation

Memory and Trident

implementation, strings

Memory and Crow

implementation, math

Chris and Magic Square

constructive algorithms, implementation

Bus to Udayland

brute force, implementation

King Moves

implementation

Checkpoints

greedy, implementation, sortings

Juicer

implementation

Recover the String

constructive algorithms, greedy, implementation, math

Letters Cyclic Shift

constructive algorithms, greedy, implementation, strings

Persistent Bookcase

bitmasks, data structures, dfs and similar, implementation

Brain's Photos

implementation

Working routine

data structures, implementation

Interesting drink

binary search, dp, implementation

Beru-taxi

brute force, geometry, implementation

Hulk

implementation

Black Widow

dp, graphs, implementation, math

Thor

brute force, data structures, implementation

Chris and Road

geometry, implementation