MST Unification

binary search, dsu, graphs, greedy

Gadgets for dollars and pounds

binary search, greedy, two pointers

Gold Transfer

binary search, data structures, dp, greedy, interactive, trees

Sereja and Prefixes

binary search, brute force

Complete The Graph

binary search, constructive algorithms, graphs, shortest paths

The Great Equalizer

binary search, data structures, math, sortings

Time Travel

binary search, graphs, shortest paths

Levko and Array

binary search, dp

Packmen

binary search, dp

Anya and Cubes

binary search, bitmasks, brute force, dp, math, meet-in-the-middle

Robot Rapping Results Report

binary search, dp, graphs

Arithmetic Progression

binary search, interactive, number theory, probabilities

Telepanting

binary search, data structures, dp, sortings

Dwarves, Hats and Extrasensory Abilities

binary search, constructive algorithms, geometry, interactive

Paired Payment

binary search, brute force, constructive algorithms, dp, flows, graphs, shortest paths

Red-Blue Operations (Easy Version)

binary search, greedy, implementation, math

The Tower is Going Home

binary search, two pointers

The Parade

binary search, greedy

Pasha and Phone

binary search, math

Number of Triplets

binary search, brute force

Guess the K-th Zero (Hard version)

binary search, constructive algorithms, data structures, interactive

Read Time

binary search, greedy, two pointers

New Year and Conference

binary search, data structures, hashing, sortings

String Manipulation 1.0

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

Vlad and the Mountains

binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers

Robin Hood

binary search, greedy

Tennis Game

binary search

Blood Cousins Return

binary search, data structures, dfs and similar, dp, sortings

Exposition

binary search, data structures, dsu, trees, two pointers

Single-use Stones

binary search, flows, greedy, two pointers

Maximize!

binary search, greedy, ternary search, two pointers

MEX vs DIFF

binary search, brute force, constructive algorithms, data structures, greedy, two pointers

Friends and Subsequences

binary search, data structures

Magazine Ad

binary search, greedy

Generating Sets

binary search, data structures, dfs and similar, greedy, strings, trees

Well-known Numbers

binary search, greedy, number theory

Common Number

binary search, combinatorics, dp, math

Vanya and Computer Game

binary search, implementation, math, sortings

Pillars

binary search, data structures, dp, sortings, trees

Division + LCP (easy version)

binary search, data structures, dp, hashing, string suffix structures, strings

As Fast As Possible

binary search, math

Enduring Exodus

binary search, two pointers

Game with modulo

binary search, constructive algorithms, interactive

Suitable Replacement

binary search, greedy, implementation

Peter and Snow Blower

binary search, geometry, ternary search

Interacdive Problem

binary search, constructive algorithms, interactive

Best Pair

binary search, brute force, implementation

Travelling Salesman Problem

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

Vitya and Strange Lesson

binary search, data structures

Music Festival

binary search, data structures, dp, greedy, sortings

Pencils and Boxes

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

Count the Trains

binary search, data structures, greedy, sortings

Constructing Tests

binary search, brute force, constructive algorithms

Image Preview

binary search, brute force, dp, two pointers

Travel Card

binary search, dp

Make It Increasing

binary search, constructive algorithms, data structures, dp, implementation

Nephren gives a riddle

binary search, dfs and similar

Strip

binary search, data structures, dp, two pointers

Stairs and Elevators

binary search

Numerical Sequence (easy version)

binary search, brute force, math

Xor Tree

binary search, bitmasks, data structures, divide and conquer, dp, trees

XK Segments

binary search, math, sortings, two pointers

GukiZ hates Boxes

binary search, greedy

Stars Drawing (Hard Edition)

binary search, dp, greedy

Carrots for Rabbits

binary search, data structures, greedy, math, sortings

Guess the Permutation

binary search, combinatorics, interactive, math

MUH and House of Cards

binary search, brute force, greedy, math

Petya and Divisors

binary search, data structures, number theory

Ciel and Robot

binary search, implementation, math

Alena And The Heater

binary search, implementation

Pchelyonok and Segments

binary search, data structures, dp, greedy, math

A Game with Traps

binary search, dp, greedy, sortings

Jeopardy of Dropped Balls

binary search, brute force, dsu, implementation

Fountains

binary search, data structures, implementation

Fight the Monster

binary search, brute force, implementation

Range Sorting (Easy Version)

binary search, dp, dsu, greedy, trees, two pointers

Fixed Points

binary search, brute force, dp

Robot Queries

binary search, data structures, dp, implementation

Tavas and Karafs

binary search, greedy, math

All Possible Digits

binary search, data structures, greedy, math, number theory

Suspicious logarithms

binary search, brute force, math

Moving Dots

binary search, brute force, combinatorics, math, two pointers

Renting Bikes

binary search, greedy

Martial Arts Tournament

binary search, brute force, greedy, math

Balanced Playlist

binary search, data structures, implementation

Array Partition

binary search, data structures, greedy, two pointers

Unfair Poll

binary search, constructive algorithms, implementation, math

Guess The Maximums

binary search, implementation, interactive, math

Almost Sorted

binary search, combinatorics, constructive algorithms, implementation

Road to Cinema

binary search, greedy, sortings

Equal XOR Segments

binary search, data structures

Watch the Videos

binary search, constructive algorithms, two pointers

Dasha and Very Difficult Problem

binary search, brute force, constructive algorithms, greedy, sortings

Present

binary search, bitmasks, constructive algorithms, data structures, math, sortings

Two Arrays

binary search, brute force, combinatorics, constructive algorithms, dp, two pointers

Friends and Presents

binary search, math

Rescheduling the Exam

binary search, data structures, greedy, implementation, math, sortings

Divide The Students

binary search, greedy, math

Increasing Frequency

binary search, dp, greedy

Voltage Keepsake

binary search, math