ABC String

bitmasks, brute force, implementation

Symmetric Matrix

implementation

Wrong Addition

implementation

Binary Removals

brute force, dp, greedy, implementation

Han Solo and Lazer Gun

brute force, data structures, geometry, implementation, math

Tom Riddle's Diary

brute force, implementation, strings

A Cookie for You

greedy, implementation, math

Notepad#

implementation

Angry Students

greedy, implementation

String Building

implementation

Binary Deque

binary search, implementation, two pointers

Cut the Triangle

implementation

Marin and Photoshoot

constructive algorithms, implementation, math

In-game Chat

implementation

Delete Two Elements

data structures, dp, implementation, math, two pointers

Hotelier

brute force, data structures, implementation

The Rank

implementation

DZY Loves Strings

greedy, implementation

Create The Teams

brute force, dp, greedy, implementation, sortings

Partial Replacement

greedy, implementation

Robot Cleaner

brute force, implementation, math

Card Trick

implementation, math

Increasing and Decreasing

constructive algorithms, greedy, implementation, math

Destroyer

implementation, sortings

Common Divisors

implementation, math

Flower City Fence

binary search, data structures, implementation, sortings

Conveyor Belts

implementation, math

Wet Shark and Odd and Even

implementation

Is it rated?

implementation, sortings

Petya and Countryside

brute force, implementation

Chess For Three

brute force, dp, implementation, math

A-B Palindrome

constructive algorithms, implementation, strings

Buy the String

implementation, math

Special Elements

brute force, implementation, two pointers

Next Test

implementation, sortings

Even Subset Sum Problem

brute force, dp, greedy, implementation

Lecture Sleep

data structures, dp, implementation, two pointers

Showstopper

greedy, implementation, sortings

A and B and Team Training

greedy, implementation, math, number theory

Gardener and the Capybaras (easy version)

brute force, constructive algorithms, implementation

Snacktower

data structures, implementation

Sum of Two Numbers

constructive algorithms, greedy, implementation, math, probabilities

Team

constructive algorithms, greedy, implementation

Digit Game

games, greedy, implementation

Roma and Lucky Numbers

implementation

Scenes From a Memory

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

Array and Peaks

constructive algorithms, implementation

Cards

greedy, implementation

Barrels

greedy, implementation, sortings

Exercising Walk

greedy, implementation, math

Strange List

brute force, greedy, implementation, math

Nastya and Door

greedy, implementation

Specific Tastes of Andre

constructive algorithms, implementation

Three Strings

implementation, strings

New Colony

brute force, greedy, implementation

Non-Substring Subsequence

dp, greedy, implementation, strings

IQ Test

brute force, implementation

Diverse Strings

implementation, strings

New Password

*special problem, implementation

Permutation Transformation

dfs and similar, divide and conquer, implementation

Between the Offices

implementation

The Clock

brute force, implementation

Two Subsequences

implementation

Balanced Rating Changes

implementation, math

Andryusha and Socks

implementation

A and B and Chess

implementation

Typical Interview Problem

brute force, implementation, strings

Three Activities

brute force, dp, greedy, implementation, sortings

Contrast Value

greedy, implementation

Napoleon Cake

dp, implementation, sortings

The Lakes

dfs and similar, dsu, graphs, implementation

Inhabitant of the Deep Sea

greedy, implementation, math

Maximum Cake Tastiness

brute force, greedy, implementation, sortings

Find Divisible

greedy, implementation, math

a-Good String

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

Social Network (easy version)

implementation

Ania and Minimizing

greedy, implementation

Dreamoon and Ranking Collection

implementation

Grade Allocation

implementation

Omkar and Infinity Clock

implementation, math

250 Thousand Tons of TNT

brute force, implementation, number theory

Omkar and Waterslide

greedy, implementation

Palindromic Numbers

constructive algorithms, implementation, math

Update Files

greedy, implementation, math

Chips

implementation, math

Got Any Grapes?

brute force, greedy, implementation

Two Bags of Potatoes

greedy, implementation, math

Valera and Antique Items

implementation

Secret Sport

implementation, strings

Shooting

greedy, implementation, sortings

Candy Bags

implementation

One-dimensional Japanese Crossword

implementation

Robots

implementation

Carrot Cakes

brute force, implementation

K-th Largest Value

brute force, greedy, implementation

Subsequence Addition (Easy Version)

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

Tokitsukaze and All Zero Sequence

implementation

Domino

implementation, math

Little Pony and Sort by Shift

implementation

Subsequence Addition (Hard Version)

bitmasks, dp, greedy, implementation, sortings