Vittorio Plays with LEGO Bricks

dp, geometry

Interactive Treasure Hunt

brute force, constructive algorithms, geometry, interactive, math

Count The Rectangles

bitmasks, brute force, data structures, geometry, sortings

Nezzar and Nice Beatmap

constructive algorithms, geometry, greedy, math, sortings

Equal Binary Subsequences

constructive algorithms, geometry, greedy, implementation, strings

Nature Reserve

binary search, geometry, ternary search

Tricky Function

data structures, divide and conquer, geometry

Points in triangle

*special problem, geometry

Harry Potter and the Golden Snitch

binary search, geometry

Space Rescuers

geometry, ternary search

Area of a Star

geometry

Optimal Polygon Perimeter

dp, geometry

Careful Maneuvering

bitmasks, brute force, geometry

Chris and Road

geometry, implementation

Chip 'n Dale Rescue Rangers

binary search, geometry, math

Maximal Area Quadrilateral

brute force, geometry

Polygons

geometry, sortings

Rain

binary search, brute force, data structures, geometry, greedy, implementation, math

Timofey and rectangles

constructive algorithms, geometry

Points on Plane

constructive algorithms, divide and conquer, geometry, greedy, sortings

Water Balance

data structures, geometry, greedy

Kalila and Dimna in the Logging Industry

dp, geometry

Ancient Berland Circus

geometry, math

Mirror Box

geometry, implementation

Arrow

geometry

Happy Farm 5

geometry

Letter A

geometry, implementation

Robo-Footballer

binary search, geometry

Knights

geometry, graphs, shortest paths, sortings

Rectangle Puzzle

geometry

Circular Mirror

binary search, combinatorics, geometry, math, two pointers

Restore Cube

brute force, geometry

Mike and Geometry Problem

combinatorics, data structures, dp, geometry, implementation

Ghosts

geometry, math

An overnight dance in discotheque

dfs and similar, dp, geometry, greedy, trees

Area of Two Circles' Intersection

geometry

Captain Marmot

brute force, geometry

Pair Of Lines

geometry

Not So Simple Polygon Embedding

binary search, brute force, geometry, math

Special Olympics

geometry

Building Bridge

geometry, ternary search, two pointers

Minimum Sum

divide and conquer, geometry, sortings

Analyzing Polyline

geometry, math, sortings

Rooter's Song

constructive algorithms, data structures, geometry, implementation, sortings, two pointers

Cupboard and Balloons

geometry

Barcelonian Distance

geometry, implementation

Dwarves, Hats and Extrasensory Abilities

binary search, constructive algorithms, geometry, interactive

Peter and Snow Blower

binary search, geometry, ternary search

Power Transmission (Easy Edition)

brute force, geometry

The Butcher

geometry, greedy, implementation, sortings, two pointers

Power Transmission (Hard Edition)

data structures, geometry, implementation, math

Number of Parallelograms

geometry

Lena and Matrix

data structures, dp, geometry, shortest paths

Vanya and Triangles

brute force, combinatorics, data structures, geometry, math, sortings

Turn

geometry, math

Sequence of points

geometry, implementation, math

4-point polyline

brute force, constructive algorithms, geometry, trees

Surrounded

geometry

Connect the Points

brute force, constructive algorithms, geometry

Volatile Kite

geometry

Recycling Bottles

dp, geometry, greedy, implementation

View Angle

brute force, geometry, math

Aerodynamic

geometry

Vasya and Triangle

geometry, number theory

Maximize the Intersections

combinatorics, constructive algorithms, geometry, greedy, sortings

Zoo

brute force, geometry

Pyramids

geometry, math

Hit Ball

geometry, implementation, math

Five Dimensional Points

brute force, geometry, math

Four Segments

brute force, constructive algorithms, geometry, implementation, math

Three Logos

bitmasks, brute force, constructive algorithms, geometry, implementation, math

Full Turn

geometry, hashing, number theory

New Year Table

geometry, math

A Problem about Polyline

geometry, math

Very Suspicious

binary search, brute force, geometry, greedy, implementation, math

Bessie's Birthday Cake (Hard Version)

geometry, greedy, math

Balanced Removals (Easier)

constructive algorithms, geometry, greedy

Find a Mine

binary search, constructive algorithms, geometry, greedy, interactive, math

Aroma's Search

brute force, constructive algorithms, geometry, greedy, implementation

Crazy Town

geometry

Mathematical Problem

brute force, constructive algorithms, geometry, math

Training Session

combinatorics, data structures, geometry, implementation, math

White Sheet

geometry, math

Circle Game

games, geometry, math

Manhattan Subarrays

brute force, geometry, greedy, implementation

Guard Duty (easy)

brute force, geometry, greedy, math

Rectangle and Square

brute force, geometry, math

Tell Your World

brute force, geometry

Two Squares

geometry, implementation

Anton and Lines

geometry, sortings

Magic Box

brute force, geometry

Constellation

geometry, implementation

Rectangles

geometry, implementation, sortings

Fifa and Fafa

geometry

Triangle

brute force, geometry, implementation, math

Polygon for the Angle

brute force, geometry

Gerald's Hexagon

brute force, geometry, math

Meeting on the Line

binary search, geometry, greedy, implementation, math, ternary search

Rotation

*special problem, geometry, math

Garage

binary search, geometry, math