Breaking Good

dfs and similar, graphs, shortest paths

The Maths Lecture

dp, implementation

Guess Your Way Out!

implementation

Amr and Pins

geometry, math

Amr and Music

implementation, sortings

Mr. Kitayuta's Gift

combinatorics, dp, matrices, strings

Mr. Kitayuta's Colorful Graph

dfs and similar, dsu

Mr. Kitayuta vs. Bamboos

binary search, greedy

Mr. Kitayuta's Technology

dfs and similar

Mr. Kitayuta, the Treasure Hunter

dp, two pointers

Mr. Kitayuta's Colorful Graph

dfs and similar, dp, dsu, graphs

Mr. Kitayuta's Gift

brute force, implementation, strings

Misha and LCP on Tree

binary search, dfs and similar, hashing, string suffix structures, trees

Misha and XOR

bitmasks

Misha and Palindrome Degree

binary search, combinatorics, implementation

Misha and Permutations Summation

data structures

Misha and Forest

constructive algorithms, data structures, greedy, sortings, trees

Misha and Changing Handles

data structures, dsu, strings

Contest

implementation

New Year Running

number theory, trees

New Year Shopping

divide and conquer, dp

New Year Domino

data structures, dp, dsu

New Year Santa Network

combinatorics, dfs and similar, graphs, trees

New Year Book Reading

constructive algorithms, greedy, implementation, math

New Year Permutation

dfs and similar, dsu, graphs, greedy, math, sortings

New Year Transportation

dfs and similar, graphs, implementation

Lecture

strings

Watching a movie

implementation

Stairs and Lines

dp, matrices

Traffic Jams in the Land

data structures, dp, number theory

Array and Operations

flows, graph matchings, number theory

Name That Tune

dp, probabilities, two pointers

Crazy Town

geometry

Subsequences Return

dp, matrices

Gears

brute force, geometry, math

Distributing Parts

greedy, sortings

Tennis Game

binary search

Removing Columns

brute force, constructive algorithms, implementation

Secret Combination

brute force, constructive algorithms, implementation

Minimum Difficulty

brute force, implementation, math

Modular Equations

math

Digital Counter

implementation

Sharti

games

Birthday

data structures, dfs and similar, dp, trees

Helping People

dp, probabilities

Obsessive String

dp, strings

Treasure

greedy

Vasya and Polynomial

math

Vasya and Chess

constructive algorithms, games

Vasya and Basketball

binary search, brute force, implementation, sortings, two pointers

Vasya and Wrestling

implementation

Vasya and Football

implementation

Vanya and Field

math

Vanya and Computer Game

binary search, implementation, math, sortings

Vanya and Exams

greedy, sortings

Vanya and Lanterns

binary search, math, sortings

Vanya and Cubes

implementation

Deciphering

flows, graph matchings

New York Hotel

greedy, math

Up the hill

implementation

Treeland Tour

data structures, dfs and similar, dp, trees

Restoring Increasing Sequence

binary search, brute force, greedy, implementation

Chocolate

brute force, dfs and similar, math, meet-in-the-middle, number theory

Hacking Cypher

brute force, math, strings

Queue

dsu, implementation

Team Olympiad

greedy, implementation, sortings

Special Matrices

combinatorics, dp

Hiking

binary search, dp

Unbearable Controversy of Being

brute force, combinatorics, dfs and similar, graphs

Given Length and Sum of Digits...

dp, greedy, implementation

BerSU Ball

dfs and similar, dp, graph matchings, greedy, sortings, two pointers

SwapSort

implementation, sortings

Candy Boxes

brute force, constructive algorithms

Giga Tower

brute force

Tourists

data structures, dfs and similar, graphs, trees

Conveyor Belts

data structures

Prefix Product Sequence

constructive algorithms, number theory

Strip

binary search, data structures, dp, two pointers

Fight the Monster

binary search, brute force

LIS of Sequence

data structures, dp, greedy, hashing, math

Valid Sets

dfs and similar, dp, math, trees

Palindrome Transformation

greedy, implementation

OR in Matrix

greedy, hashing, implementation

Calculating Function

implementation, math

Valuable Resources

brute force, greedy

Factory

implementation, math, matrices

Sign on Fence

binary search, constructive algorithms, data structures

Kindergarten

data structures, dp, greedy

Strange Sorting

implementation, math

Maximum Value

binary search, math, sortings, two pointers

Bits

bitmasks, constructive algorithms

Friends and Presents

binary search, math

Counterexample

brute force, implementation

ELCA

data structures, trees

Random Function and Tree

combinatorics, dp, trees

Game with Strings

bitmasks, dp, probabilities

Interesting Array

constructive algorithms, data structures, trees

Diverse Permutation

constructive algorithms, greedy

Parking Lot

data structures, divide and conquer

Parcels

dp, graphs