Pair Of Lines

geometry

Recycling Bottles

dp, geometry, greedy, implementation

Nearest vectors

geometry, sortings

New Year Table

geometry, math

Where do I Turn?

geometry

Lena and Matrix

data structures, dp, geometry, shortest paths

Magic Box

brute force, geometry

Not a Geometry Problem

*special problem, *special problem, constructive algorithms, geometry, math

Anton and Lines

geometry, sortings

Two Squares

geometry, implementation

Find Color

constructive algorithms, geometry, implementation, math

Number of Parallelograms

geometry

The Fair Nut and Rectangles

data structures, dp, geometry

Water Balance

data structures, geometry, greedy

Full Turn

geometry, hashing, number theory

Power Transmission (Hard Edition)

data structures, geometry, implementation, math

Tell Your World

brute force, geometry

The Butcher

geometry, greedy, implementation, sortings, two pointers

Three Logos

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

Power Transmission (Easy Edition)

brute force, geometry

Points on Plane

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

Peter and Snow Blower

binary search, geometry, ternary search

Volatile Kite

geometry

Four Segments

brute force, constructive algorithms, geometry, implementation, math

Connect the Points

brute force, constructive algorithms, geometry

Captain Marmot

brute force, geometry

Five Dimensional Points

brute force, geometry, math

Dwarves, Hats and Extrasensory Abilities

binary search, constructive algorithms, geometry, interactive

Surrounded

geometry

Barcelonian Distance

geometry, implementation

Tricky Function

data structures, divide and conquer, geometry

Timofey and rectangles

constructive algorithms, geometry

Nature Reserve

binary search, geometry, ternary search

Escape Through Leaf

data structures, dp, geometry

Equal Binary Subsequences

constructive algorithms, geometry, greedy, implementation, strings

Rain

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

Rectangle and Square

brute force, geometry, math

Product Sum

data structures, dp, geometry

Divide Points

constructive algorithms, geometry, math

Nezzar and Nice Beatmap

constructive algorithms, geometry, greedy, math, sortings

Divide Square

data structures, geometry, implementation, sortings

Polygons

geometry, sortings

Area of Two Circles' Intersection

geometry

An overnight dance in discotheque

dfs and similar, dp, geometry, greedy, trees

Maximal Area Quadrilateral

brute force, geometry

4-point polyline

brute force, constructive algorithms, geometry, trees

Ghosts

geometry, math

Count The Rectangles

bitmasks, brute force, data structures, geometry, sortings

Cupboard and Balloons

geometry

Rooter's Song

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

Mike and Geometry Problem

combinatorics, data structures, dp, geometry, implementation

Leaving the Bar

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

Chip 'n Dale Rescue Rangers

binary search, geometry, math

Restore Cube

brute force, geometry

Long Way Home

data structures, divide and conquer, dp, geometry, graphs, greedy, shortest paths

Chris and Road

geometry, implementation

Commentator problem

geometry

Tenzing and Triangle

data structures, dp, geometry, greedy, math

Circular Mirror

binary search, combinatorics, geometry, math, two pointers

Bear and Bowling 4

binary search, data structures, divide and conquer, geometry, ternary search

Careful Maneuvering

bitmasks, brute force, geometry

Guard Duty (easy)

brute force, geometry, greedy, math

Vika and Segments

constructive algorithms, data structures, geometry, two pointers

Rectangle Puzzle

geometry

Four Points

brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search

Gregor and the Odd Cows (Easy)

bitmasks, geometry, math, number theory

Covered Points

fft, geometry, number theory

Hit Ball

geometry, implementation, math

Interactive Treasure Hunt

brute force, constructive algorithms, geometry, interactive, math

U2

geometry

Point Ordering

constructive algorithms, geometry, interactive, math

Vittorio Plays with LEGO Bricks

dp, geometry

Mice problem

geometry, implementation, math, sortings

Sequence of points

geometry, implementation, math

Pyramids

geometry, math

Optimal Polygon Perimeter

dp, geometry

Jordan Smiley

*special problem, dfs and similar, geometry, implementation

Disks

dfs and similar, geometry, graph matchings, graphs

City Union

constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math

Coloring

brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math

Knights

geometry, graphs, shortest paths, sortings

Hill Climbing

dfs and similar, geometry, trees

Turn

geometry, math

Freelancer's Dreams

geometry

New Year and Castle Construction

combinatorics, geometry, math, sortings

Summer Earnings

binary search, bitmasks, brute force, geometry, sortings

Area of a Star

geometry

Fractal Origami

geometry, math, matrices

Analyzing Polyline

geometry, math, sortings

Professor's task

data structures, geometry

Rest In The Shades

binary search, geometry

Guard Towers

binary search, dsu, geometry, graphs, sortings

Omkar and Akmar

chinese remainder theorem, combinatorics, constructive algorithms, fft, games, geometry, math, meet-in-the-middle, string suffix structures

Minimum Sum

divide and conquer, geometry, sortings

Boboniu and String

binary search, geometry, ternary search

Building Bridge

geometry, ternary search, two pointers

Space Rescuers

geometry, ternary search

Letter A

geometry, implementation

Lena and Queries

data structures, divide and conquer, geometry

The Supersonic Rocket

geometry, hashing, strings