Little Elephant and Magic Square

brute force, implementation

Little Elephant and Chess

brute force, strings

Little Elephant and Elections

brute force, combinatorics, dp

View Angle

brute force, geometry, math

Almost Arithmetical Progression

brute force, dp

Rats

brute force, dfs and similar, graphs, implementation, shortest paths

Jury Size

brute force, implementation

Table with Letters - 2

brute force, two pointers

Unsorting Array

brute force, sortings

Little Xor

brute force, implementation

Mad Joe

brute force

Colorful Graph

brute force, dfs and similar, graphs

Beauty Pageant

brute force, constructive algorithms, greedy

Suggested Friends

brute force, graphs

Log Stream Analysis

binary search, brute force, implementation, strings

Undoubtedly Lucky Numbers

bitmasks, brute force, dfs and similar

Heads or Tails

brute force, implementation

Race

brute force, implementation

Easy Tape Programming

brute force, implementation

Boy or Girl

brute force, implementation, strings

Non-square Equation

binary search, brute force, math

Magic Box

brute force, geometry

Team

brute force, greedy

Shifts

brute force, two pointers

Two Tables

brute force, implementation

Parallelepiped

brute force, geometry, math

Shooshuns and Sequence

brute force, implementation

Color Stripe

brute force, dp, greedy

Mountain Scenery

brute force, constructive algorithms, implementation

Bitonix' Patrol

bitmasks, brute force, combinatorics, dfs and similar, math

Blackboard Fibonacci

brute force, math

Ice Skating

brute force, dfs and similar, dsu, graphs

Crosses

brute force, implementation

Bicycle Chain

brute force, implementation

Hometask

brute force, constructive algorithms, greedy, math

System of Equations

brute force

Little Elephant and Sorting

brute force, greedy

Little Elephant and Rozdil

brute force, implementation

Game on Paper

brute force, implementation

Two Problems

brute force, implementation

Brand New Easy Problem

brute force

LLPS

binary search, bitmasks, brute force, greedy, implementation, strings

Brand New Problem

bitmasks, brute force, dp

Programming Language

binary search, brute force, expression parsing, implementation

Football Championship

brute force, implementation

Cinema

brute force, data structures

Hexadecimal's theorem

brute force, constructive algorithms, implementation, number theory

Let's Watch Football

binary search, brute force, math

Fibonacci Number

brute force, math, matrices

Xor

brute force

Walking in the Rain

brute force, implementation

Funky Numbers

binary search, brute force, implementation

Counting Rhombi

brute force, math

Cut Ribbon

brute force, dp

Zoo

brute force, geometry

Common Divisors

brute force, hashing, implementation, math, strings

Number of Triplets

binary search, brute force

Series of Crimes

brute force, geometry, implementation

Encrypting Messages

brute force

Party

brute force, dfs and similar, dsu, graphs

Power Defence

brute force, dp, geometry, greedy

Plane of Tanks: Duel

brute force, dp, math, probabilities

Robot Bicorn Attack

brute force, implementation

Spiral Maximum

brute force, dp

Phone Code

*special problem, brute force, implementation

ucyhf

*special problem, brute force, implementation, number theory

Broken checker

*special problem, brute force

Compatible Numbers

bitmasks, brute force, dfs and similar, dp

Another Problem on Strings

binary search, brute force, dp, math, strings, two pointers

Minimum Diameter

binary search, brute force

Large Refrigerator

brute force

Polycarpus the Safecracker

brute force, dp

Dress'em in Vests!

binary search, brute force, greedy, two pointers

Palindrome pairs

*special problem, brute force, dp, strings

String Manipulation 1.0

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

Ice Sculptures

*special problem, brute force, number theory

Game Outcome

brute force

Mrs. Hudson's Pancakes

brute force, dp

Message

brute force

I_love_\%username\%

brute force

Frames

brute force

Lucky Mask

brute force, implementation

Help Vasilisa the Wise 2

brute force, math

Help Caretaker

brute force, dp

Help Farmer

brute force, math

New Year Cards

brute force, greedy, implementation

Hellish Constraints

brute force, dp, two pointers

Cycle

brute force, dfs and similar, implementation

Rectangle and Square

brute force, geometry, math

Pairs of Numbers

brute force, dfs and similar, math, number theory

Average Numbers

brute force, implementation

Students and Shoelaces

brute force, dfs and similar, graphs, implementation

String

brute force, constructive algorithms, hashing, implementation, string suffix structures, strings

Pills

brute force, flows

Hot Bath

binary search, brute force, math

Permutations

brute force, combinatorics, implementation

Lucky Substring

brute force, implementation

Lucky Division

brute force, number theory

Lucky Permutation

brute force, combinatorics, number theory

Three Sons

brute force