Jzzhu and Children

implementation

Divisors

brute force, dfs and similar, implementation, number theory

Suffix Structures

implementation, strings

Rewards

implementation

DZY Loves Strings

greedy, implementation

DZY Loves Hash

implementation

DZY Loves Sequences

dp, implementation, two pointers

DZY Loves Chessboard

dfs and similar, implementation

Kolya and Tandem Repeat

brute force, implementation, strings

Anton and Letters

constructive algorithms, implementation

Borya and Hanabi

bitmasks, brute force, implementation

Valera and Swaps

constructive algorithms, dsu, graphs, implementation, math, string suffix structures

Valera and Tubes

constructive algorithms, dfs and similar, implementation

Valera and Fruits

greedy, implementation

Valera and Antique Items

implementation

Balancer

greedy, implementation

Forgotten Episode

implementation

Devu and Partitioning of the Array

brute force, constructive algorithms, implementation, number theory

Devu, the Dumb Guy

implementation, sortings

Devu, the Singer and Churu, the Joker

greedy, implementation

The Child and Set

bitmasks, greedy, implementation, sortings

The Child and Homework

implementation

Om Nom and Spiders

implementation, math

Cardiogram

implementation

Queue on Bus Stop

implementation

Nanami's Digital Board

dsu, implementation

Ryouko's Memory Note

implementation, math, sortings

Kuriyama Mirai's Stones

dp, implementation, sortings

Kitahara Haruki's Gift

brute force, implementation

Football Kit

brute force, greedy, implementation

Choosing Teams

greedy, implementation, sortings

k-Tree

dp, implementation, trees

Shower Line

brute force, implementation

Black Square

implementation

Police Patrol

greedy, implementation, math, ternary search

Prison Transfer

data structures, implementation

Police Recruits

implementation

Sereja and Mirroring

implementation

Sereja and Mugs

implementation

Megacity

binary search, greedy, implementation, sortings

Squats

implementation

Pasha and Hamsters

constructive algorithms, implementation

Bug in Code

data structures, graphs, implementation, two pointers

Online Meeting

implementation

Start Up

implementation

Football

constructive algorithms, graphs, implementation

Crash

implementation

Elimination

dp, implementation, math

Population Size

greedy, implementation, math

Booking System

binary search, dp, greedy, implementation

Art Union

brute force, dp, implementation

Guess a number!

greedy, implementation, two pointers

Mashmokh and Tokens

binary search, greedy, implementation, math

Mashmokh and Lights

implementation

Spyke Chatting

implementation

Data Recovery

implementation

E-mail Addresses

implementation

Pattern

implementation, strings

Poster

greedy, implementation

Kicker

implementation

Multi-core Processor

implementation

Password Check

*special problem, implementation

A + B Strikes Back

*special problem, brute force, constructive algorithms, dsu, implementation

Garland

implementation

Line to Cashier

implementation

Curious Array

brute force, combinatorics, implementation, math

Long Path

dp, implementation

Triangle

brute force, geometry, implementation, math

Hamming Triples

implementation, math, two pointers

Toy Sum

greedy, implementation, math

Unusual Product

implementation, math

Gravity Flip

greedy, implementation, sortings

Maze 1D

binary search, greedy, implementation

Minesweeper 1D

dp, implementation

Marathon

implementation, math

Valera and X

implementation

Two Rooted Trees

data structures, implementation, trees

Trees in a Row

brute force, implementation

Team

constructive algorithms, greedy, implementation

Sereja and Contests

greedy, implementation, math

Vanya and Cards

implementation, math

Inna and Huge Candy Matrix

implementation, math

Inna and New Matrix of Candies

brute force, implementation, schedules

Inna and Choose Options

implementation

Pages

implementation

Cards

constructive algorithms, implementation

On Corruption and Numbers

constructive algorithms, implementation, math

On Segment's Own Points

implementation

Physical Education and Buns

brute force, implementation, math

Counting Sticks

brute force, implementation

Genetic Engineering

implementation, two pointers

Inna, Dima and Song

implementation

Inna and Alarm Clock

implementation

Fox and Cross

greedy, implementation

Fox and Minimal path

bitmasks, constructive algorithms, graphs, implementation, math

George and Number

greedy, implementation

George and Sleep

implementation

Game with Points

dp, graphs, implementation, shortest paths

Fly, freebies, fly!

binary search, brute force, implementation

Second-Price Auction

implementation