a-Good String

bitmasks, brute force, divide and conquer, dp, implementation

Codeforces Subsequences

brute force, constructive algorithms, greedy, math, strings

Special Elements

brute force, implementation, two pointers

Potions (Easy Version)

brute force, data structures, dp, greedy

Divisibility by Eight

brute force, dp, math

Two Substrings

brute force, dp, greedy, implementation, strings

Копирование файлов II

*special problem, binary search, brute force, math

Binary Blocks

brute force

Oh Sweet Beaverette

brute force, implementation

Heroes

brute force, implementation

DDoS

*special problem, brute force

Three Sons

brute force

Blinds

brute force

Fly, freebies, fly!

binary search, brute force, implementation

Robot Bicorn Attack

brute force, implementation

Promocodes with Mistakes

*special problem, brute force, constructive algorithms, implementation

String Manipulation 1.0

*special problem, binary search, brute force, data structures, strings

Accounting

brute force, math

Two Tables

brute force, implementation

Shopping

brute force

Permutations

brute force

Balls Game

brute force, two pointers

Trees in a Row

brute force, implementation

Permutations

brute force, combinatorics, implementation

Martian Dollar

brute force

Alice, Bob, Two Teams

brute force, constructive algorithms

Mike and Cellphone

brute force, constructive algorithms, implementation

Chessboard

bitmasks, brute force, implementation

Point on Spiral

brute force, geometry, implementation

Barnicle

brute force, implementation, math, strings

Double Matrix

brute force, greedy

Little Elephant and Sorting

brute force, greedy

A Compatible Pair

brute force, games

Vile Grasshoppers

brute force, math, number theory

Three Garlands

brute force, constructive algorithms

Cutting Banner

brute force, implementation

Restoring Painting

brute force, constructive algorithms, math

Non-square Equation

binary search, brute force, math

Towers

brute force, constructive algorithms, greedy, implementation, sortings

Dima and Continuous Line

brute force, implementation

Make a Square

brute force, implementation, math

Common Divisors

brute force, hashing, implementation, math, strings

Strongly Connected City

brute force, dfs and similar, graphs, implementation

Mike and Fun

brute force, dp, greedy, implementation

Connect

brute force, dfs and similar, dsu

Optimal Point on a Line

brute force, sortings

Optimal Currency Exchange

brute force, math

Torn Lucky Ticket

brute force, dp, hashing, implementation, math

Reverse Card (Easy Version)

brute force, math, number theory

Bouncing Ball

brute force, dp, implementation

Sereja and Bottles

brute force

Lost Numbers

brute force, divide and conquer, interactive, math

Array Game

binary search, brute force, data structures, sortings, two pointers

String Modification

brute force, constructive algorithms, implementation, sortings, strings

Game with Marbles (Easy Version)

brute force, games, greedy, sortings

Anonymous Informant

brute force, dfs and similar, graphs, implementation

Column Swapping

brute force, constructive algorithms, greedy, implementation, sortings

Unforgivable Curse (easy version)

brute force, constructive algorithms, dsu, graphs, greedy, strings

Vampiric Powers, anyone?

bitmasks, brute force, dp, greedy

Find the Spruce

brute force, dp, implementation

Make It Round

brute force, number theory

Flipper

brute force, constructive algorithms, greedy

Mark and His Unfinished Essay

brute force, implementation

Three displays

brute force, dp, implementation

Mocha and Diana (Easy Version)

brute force, constructive algorithms, dsu, graphs, greedy, trees

Maximum Crossings (Easy Version)

brute force

Increase Subarray Sums

brute force, dp, greedy, implementation

Sasha and the Casino

binary search, brute force, constructive algorithms, games, greedy, math

LR-remainders

brute force, data structures, implementation, math, two pointers

Berland Crossword

bitmasks, brute force, greedy, implementation

Diverse Substrings

brute force, implementation, strings

Sum of Substrings

brute force, constructive algorithms, greedy, math, strings

Add Modulo 10

brute force, math, number theory

Web of Lies

brute force, graphs, greedy

Berland Regional

brute force, data structures, greedy, number theory, sortings

Magic Powder - 1

binary search, brute force, implementation

Dominant Character

brute force, greedy, implementation, strings

Polo the Penguin and Matrix

brute force, dp, implementation, sortings, ternary search

Soldier and Cards

brute force, dfs and similar, games

Composite Coloring

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

Preparing Olympiad

bitmasks, brute force

Create The Teams

brute force, dp, greedy, implementation, sortings

Han Solo and Lazer Gun

brute force, data structures, geometry, implementation, math

Fadi and LCM

brute force, math, number theory

Books

binary search, brute force, implementation, two pointers

Broken checker

*special problem, brute force

Game on Paper

brute force, implementation

Number of Triplets

binary search, brute force

Calendar

brute force, implementation

T-Shirt Hunt

brute force, implementation

Counting Rhombi

brute force, math

Lucky Mask

brute force, implementation

Dress'em in Vests!

binary search, brute force, greedy, two pointers

King of Thieves

brute force, implementation

Bear and Compressing

brute force, dfs and similar, dp, strings

Tournament

bitmasks, brute force, dfs and similar, greedy

Finding Team Member

brute force, implementation, sortings

Cubes for Masha

brute force, implementation

Masha and Bears

brute force, implementation

Okabe and Banana Trees

brute force, math