Beautiful Rectangle

brute force, combinatorics, constructive algorithms, data structures, greedy, math

As Simple as One and Two

dp, greedy

Snow Walking Robot

constructive algorithms, greedy, implementation

Three Friends

brute force, greedy, math, sortings

Portals

data structures, dp, greedy, implementation, sortings

Shawarma Tent

brute force, geometry, greedy, implementation

Blocks

greedy, math

Suits

brute force, greedy, math

Interesting Subarray

constructive algorithms, greedy, math

Card Game

games, greedy, math

Domino for Young

dp, greedy, math

Long Beautiful Integer

constructive algorithms, greedy, implementation, strings

Just Arrange the Icons

greedy, implementation, math

Elections

greedy

Spaceship Solitaire

data structures, greedy, implementation

Decreasing Debts

constructive algorithms, data structures, graphs, greedy, implementation, math, two pointers

Diverse Matrix

constructive algorithms, greedy, math, number theory

Beautiful String

constructive algorithms, greedy

Beautiful Sequence

brute force, constructive algorithms, greedy

Beautiful Regional Contest

greedy, implementation

PIN Codes

greedy, implementation

Tournament

brute force, dp, greedy

A Game with Traps

binary search, dp, greedy, sortings

Infinite Fence

greedy, math, number theory

Divisor Set

divide and conquer, fft, greedy, math, number theory

The Contest

data structures, dp, greedy

Yet Another Monster Killing Problem

binary search, data structures, dp, greedy, sortings, two pointers

Dominated Subarray

greedy, implementation, sortings, strings, two pointers

Two Rival Students

greedy, math

Yet Another Division Into Teams

dp, greedy, sortings

Binary String Minimizing

greedy

Platforms Jumping

greedy

Minimize the Permutation

greedy

Send Boxes to Alice (Hard Version)

constructive algorithms, greedy, math, number theory, ternary search, two pointers

Send Boxes to Alice (Easy Version)

constructive algorithms, greedy, math, number theory, ternary search, two pointers

Feeding Chicken

constructive algorithms, greedy, implementation

Antenna Coverage

data structures, dp, greedy, sortings

Harmonious Graph

constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings

Sweets Eating

dp, greedy, math, sortings

Silly Mistake

greedy, implementation

Twin Buildings

greedy, implementation

Songwriter

greedy, two pointers

Voting (Hard Version)

binary search, data structures, greedy

Voting (Easy Version)

data structures, dp, greedy

Salary Changing

binary search, greedy, sortings

Minimize The Integer

greedy, two pointers

Binary Palindromes

greedy, strings

Wires

dfs and similar, graphs, greedy

Divide The Students

binary search, greedy, math

The Parade

binary search, greedy

Show Must Go On

binary search, brute force, greedy, shortest paths

Discarding Game

dp, greedy, two pointers

The Feast and the Bus

brute force, constructive algorithms, greedy, math

Too Many Segments (hard version)

data structures, greedy, sortings

Too Many Segments (easy version)

greedy

Good Numbers (hard version)

binary search, greedy, math, meet-in-the-middle

Good Numbers (easy version)

brute force, greedy, implementation

The World Is Just a Programming Task (Easy Version)

brute force, dp, greedy, implementation

Grow The Tree

greedy, math, sortings

Shichikuji and Power Grid

dsu, graphs, greedy, shortest paths, trees

Restricted RPS

constructive algorithms, dp, greedy

Running in Pairs

constructive algorithms, greedy, math

Minimizing Difference

binary search, constructive algorithms, greedy, sortings, ternary search, two pointers

Queue in the Train

data structures, greedy, implementation

Adilbek and the Watering System

data structures, greedy, sortings

Standard Free2play

dp, greedy, math

Kill `Em All

greedy, sortings

Balanced Distribution

data structures, dp, greedy

Balanced Removals (Harder)

binary search, constructive algorithms, divide and conquer, greedy, implementation, sortings

Balanced Removals (Easier)

constructive algorithms, geometry, greedy

Alice and the Doll

brute force, data structures, greedy, implementation

Labs

constructive algorithms, greedy, implementation

Stones

brute force, greedy, math

Middle-Out

constructive algorithms, greedy, strings

Increasing Matrix

greedy

Ania and Minimizing

greedy, implementation

Optimal Subsequences (Hard Version)

data structures, greedy

Optimal Subsequences (Easy Version)

data structures, greedy

To Make 1

bitmasks, constructive algorithms, dp, greedy, number theory

Tree Factory

constructive algorithms, greedy, trees

Sequence Sorting

dp, greedy, two pointers

Save the Nature

binary search, greedy

Knights

constructive algorithms, greedy

2048 Game

brute force, greedy, math

Tourism

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

Substring Game in the Lesson

games, greedy, strings

The Light Square

2-sat, dfs and similar, greedy

Workout plan

data structures, greedy

Sum Queries?

data structures, greedy, implementation, math

Zmei Gorynich

greedy, math

Wi-Fi

data structures, dp, greedy

Shooting

greedy, implementation, sortings

Ticket Game

games, greedy, math

Swap Letters

constructive algorithms, greedy

Yellow Cards

greedy, implementation, math

Employment

greedy, sortings

Bad Sequence

data structures, greedy

Unstable String Sort

data structures, dfs and similar, dsu, graphs, greedy, implementation, strings

Double Permutation Inc.

*special problem, binary search, greedy

Teams

*special problem, binary search, greedy, math