Aramic script

implementation, strings

Borya's Diagnosis

implementation

Find The Bone

implementation

Thor

brute force, data structures, implementation

Joty and Chocolate

implementation, math, number theory

Yet Another Yet Another Task

data structures, dp, implementation, two pointers

Cinema

implementation, sortings

Odds and Ends

implementation

Eugeny and Array

implementation

Karen and Morning

brute force, implementation

Divide and Summarize

binary search, brute force, data structures, divide and conquer, implementation, sortings

The Child and Homework

implementation

Polycarp and Letters

brute force, implementation, strings

Cd and pwd commands

*special problem, data structures, implementation

Neverending competitions

implementation, math

Letters Cyclic Shift

constructive algorithms, greedy, implementation, strings

Mountain Scenery

brute force, constructive algorithms, implementation

Maximum Distributed Tree

dfs and similar, dp, greedy, implementation, math, number theory, sortings, trees

Uncowed Forces

implementation

Garland

implementation

Seat Arrangements

brute force, implementation

Alyona and copybooks

brute force, implementation

Lucky Sum

implementation

The Best Gift

constructive algorithms, implementation

Dreamoon Likes Coloring

constructive algorithms, greedy, implementation, math

Mashmokh and Lights

implementation

Difference Row

constructive algorithms, implementation, sortings

New Bus Route

implementation, sortings

Straight <<A>>

implementation, math

Squares

greedy, implementation, sortings

Divisiblity of Differences

implementation, math, number theory

Polo the Penguin and Segments

brute force, implementation

Wrath

greedy, implementation, two pointers

A Prank

greedy, implementation

Santa Claus and a Place in a Class

implementation, math

Photo to Remember

*special problem, data structures, dp, implementation

Guess a number!

greedy, implementation, two pointers

A + B Strikes Back

*special problem, brute force, constructive algorithms, dsu, implementation

MEX and Increments

constructive algorithms, data structures, dp, greedy, implementation, math, sortings

Unary

implementation

Robot's Task

greedy, implementation

Discrete Acceleration

binary search, dp, implementation, math, two pointers

Tree Cutting

binary search, dp, greedy, implementation, trees

Compression and Expansion

brute force, data structures, greedy, implementation, trees

Codehorses T-shirts

greedy, implementation

Mike and Children

brute force, implementation

Mammoth's Genome Decoding

implementation, strings

Lesha and array splitting

constructive algorithms, greedy, implementation

Thanos Sort

implementation

A Prosperous Lot

constructive algorithms, implementation

Going Home

brute force, hashing, implementation, math

Single Wildcard Pattern Matching

brute force, implementation, strings

Co-prime Array

greedy, implementation, math, number theory

Bark to Unlock

brute force, implementation, strings

The Festive Evening

data structures, implementation

Book

binary search, brute force, data structures, dp, graphs, implementation, sortings

Conan and Agasa play a Card Game

games, greedy, implementation

The Useless Toy

implementation

Mikasa

binary search, bitmasks, greedy, implementation

Jamie and Alarm Snooze

brute force, implementation, math

Phoenix and Science

binary search, constructive algorithms, greedy, implementation, math

Recover an RBS

constructive algorithms, greedy, implementation, strings

Count Subrectangles

binary search, greedy, implementation

Art Union

brute force, dp, implementation

Remove the Substring (easy version)

greedy, implementation

Vasya and Book

implementation, math

Journey

dfs and similar, dp, dsu, implementation

Training Session

combinatorics, data structures, geometry, implementation, math

Ball Game

brute force, implementation

Table

constructive algorithms, greedy, implementation

T-shirt buying

data structures, implementation

Chris and Magic Square

constructive algorithms, implementation

Gargari and Bishops

greedy, hashing, implementation

Almost Arithmetic Progression

brute force, implementation, math

Two Bases

brute force, implementation

Berland National Library

implementation

The King's Race

implementation, math

Sonya and Queries

data structures, implementation

New Year and Domino

dp, implementation

Bar

implementation

Multiplicity

data structures, dp, implementation, math, number theory

Vasya And Password

greedy, implementation, strings

Monoblock

combinatorics, data structures, implementation, math

Yuhao and a Parenthesis

greedy, implementation

Mind Control

brute force, data structures, implementation

Digital Counter

implementation

Slime Combining

implementation

Long Beautiful Integer

constructive algorithms, greedy, implementation, strings

System Administrator

implementation

Mike and Fun

brute force, dp, greedy, implementation

Colored Boots

greedy, implementation

123-sequence

implementation

Sasha and a Bit of Relax

dp, implementation

Balance (Easy version)

brute force, data structures, implementation, number theory

Strongly Connected City

brute force, dfs and similar, graphs, implementation

Ilya and Diplomas

greedy, implementation, math

Skier

data structures, implementation

Hate "A"

implementation, strings

Squats

implementation

Good Matrix Elements

implementation