Uncowed Forces

implementation

Polycarp and Letters

brute force, implementation, strings

Karen and Morning

brute force, implementation

Odds and Ends

implementation

Infinite Sequence

implementation, math

Saitama Destroys Hotel

implementation, math

Balloons

constructive algorithms, implementation

Palindromic Times

implementation, strings

Grandfather Dovlet’s calculator

implementation

Chat Servers Outgoing Traffic

implementation

Crossword solving

brute force, implementation, strings

Vanya and Table

implementation, math

Mahmoud and Ehab and the MEX

greedy, implementation

Vasily the Bear and Triangle

implementation, math

Fashion in Berland

implementation

Queue on Bus Stop

implementation

Roman and Browser

implementation

Unimodal Array

implementation

Shell Game

constructive algorithms, implementation, math

Inbox (100500)

implementation

Hamster Farm

implementation

If at first you don't succeed...

implementation

Vasya and Books

implementation, math

Diversity

greedy, implementation, strings

Commentary Boxes

implementation, math

Beautiful Divisors

brute force, implementation

Game of Robots

implementation

Div. 64

implementation

Gotta Catch Em' All!

implementation

Asphalting Roads

implementation

Yellow Cards

greedy, implementation, math

Fair Game

implementation, sortings

TV Subscriptions (Easy Version)

implementation

Tavas and Nafas

brute force, implementation

Lucky Substring

brute force, implementation

Detective Book

implementation

Ehab and subtraction

implementation, sortings

Cashier

implementation

Settlement of Guinea Pigs

greedy, implementation, math

Happy Birthday, Polycarp!

implementation

King Escape

dfs and similar, graphs, implementation

Elimination of a Ring

constructive algorithms, greedy, implementation

Reverse a Substring

implementation, sortings, strings

Pillars

greedy, implementation

Watching a movie

greedy, implementation

Vaccination

greedy, implementation

City Day

implementation

Dasha and Stairs

brute force, constructive algorithms, implementation, math

Bestie

brute force, combinatorics, constructive algorithms, implementation, math, number theory

Little Elephant and Function

implementation, math

Diverse Substring

implementation, strings

Rooms and Staircases

brute force, implementation

Launch of Collider

implementation

Round House

implementation, math

Palindromic Twist

implementation, strings

Chocolates

greedy, implementation

Groups

brute force, implementation

Shuffle Hashing

brute force, implementation, strings

Three Sevens

brute force, data structures, greedy, implementation

Grasshopper And the String

implementation

Asterisk-Minor Template

implementation, strings

Bear and Raspberry

brute force, greedy, implementation

Luke is a Foodie

brute force, greedy, implementation

Circle of Students

implementation

Middle of the Contest

implementation

Appleman and Easy Task

brute force, implementation

Superhero Transformation

implementation, strings

Lucky Sum of Digits

brute force, implementation

Currency System in Geraldion

implementation, sortings

Roadside Trees (Simplified Edition)

greedy, implementation

Red Versus Blue

constructive algorithms, greedy, implementation, math

Different is Good

constructive algorithms, implementation, strings

Amr and Music

greedy, implementation, sortings

Single Push

implementation

Candy Bags

implementation

Valera and Antique Items

implementation

Ania and Minimizing

greedy, implementation

Social Network (easy version)

implementation

Balanced Rating Changes

implementation, math

Scenes From a Memory

brute force, constructive algorithms, implementation, math, number theory

Conveyor Belts

implementation, math

DZY Loves Strings

greedy, implementation

Notepad#

implementation

Binary Removals

brute force, dp, greedy, implementation

Keep it Beautiful

implementation

Array Cancellation

constructive algorithms, implementation

Absent Remainder

greedy, implementation, sortings

Shoe Shuffling

constructive algorithms, greedy, implementation, two pointers

Deadly Laser

implementation

Assigning to Classes

greedy, implementation, sortings

Challenging Valleys

implementation, two pointers

Johnny and Ancient Computer

implementation

Supercentral Point

implementation

Infinite Replacement

combinatorics, implementation, strings

Valera and X

implementation

Premutation

brute force, implementation, math

Numbers on Whiteboard

constructive algorithms, data structures, greedy, implementation, math

YetnotherrokenKeoard

data structures, implementation, strings

Bear and Finding Criminals

constructive algorithms, implementation

Double-ended Strings

brute force, implementation, strings