Generate Login

brute force, greedy, sortings

Beautiful Divisors

brute force, implementation

Buggy Robot

greedy

Div. 64

implementation

Vlad and Cafes

ACM ICPC

brute force

Polycarp and Letters

brute force, implementation, strings

Fair Game

implementation, sortings

Mahmoud and Ehab and the MEX

greedy, implementation

Lazy Security Guard

brute force, geometry, math

Odds and Ends

implementation

Weather Tomorrow

implementation, math

Diversity

greedy, implementation, strings

Unimodal Array

implementation

Crossword solving

brute force, implementation, strings

Karen and Morning

brute force, implementation

3-palindrome

constructive algorithms

Fake NP

greedy, math

Find Amir

constructive algorithms, greedy, math

Mike and palindrome

brute force, constructive algorithms, strings

Pupils Redistribution

constructive algorithms, math

Shell Game

constructive algorithms, implementation, math

Mahmoud and a Triangle

constructive algorithms, geometry, greedy, math, number theory, sortings

Mahmoud and Longest Uncommon Subsequence

constructive algorithms, strings

Dasha and Stairs

brute force, constructive algorithms, implementation, math

Gotta Catch Em' All!

implementation

Santa Claus and Candies

dp, greedy, math

Arpa’s hard exam and Mehrdad’s naive cheat

implementation, math, number theory

Grasshopper And the String

implementation

Cormen --- The Best Friend Of a Man

dp, greedy

Transformation: from A to B

brute force, dfs and similar, math

Jumping Ball

implementation

Checking the Calendar

implementation

Launch of Collider

implementation

Fashion in Berland

implementation

Lovely Palindromes

constructive algorithms, math

Bear and Finding Criminals

constructive algorithms, implementation

Different is Good

constructive algorithms, implementation, strings

Game of Robots

implementation

Seating On Bus

implementation

Round House

implementation, math

z-sort

sortings

Любимые числа Поликарпа

constructive algorithms, implementation

Parliament of Berland

*special problem, constructive algorithms

Little Artem and Grasshopper

implementation

Voting for Photos

*special problem, constructive algorithms, implementation

Tennis Tournament

implementation, math

Robot Sequence

brute force, implementation

Infinite Sequence

implementation, math

Grandfather Dovlet’s calculator

implementation

Dinner with Emma

games, greedy

Pasha and Stick

combinatorics, math

Saitama Destroys Hotel

implementation, math

Uncowed Forces

implementation

Olesya and Rodion

math

Asphalting Roads

implementation

Raising Bacteria

bitmasks

Multiplication Table

implementation, number theory

Currency System in Geraldion

implementation, sortings

Vanya and Table

implementation, math

Tavas and Nafas

brute force, implementation

Drazil and Date

math

Amr and Music

greedy, implementation, sortings

New Year Transportation

dfs and similar, graphs, implementation

Lecture

implementation, strings

Watching a movie

greedy, implementation

Up the hill

constructive algorithms, implementation

Expression

brute force, math

Dreamoon and Stairs

implementation, math

Inbox (100500)

implementation

Appleman and Easy Task

brute force, implementation

Eevee

brute force, implementation, strings

Jzzhu and Children

implementation

DZY Loves Strings

greedy, implementation

Valera and Antique Items

implementation

Queue on Bus Stop

implementation

Start Up

implementation

Valera and X

implementation

Inna and Choose Options

implementation

Fox and Number Game

greedy, math

Bear and Raspberry

brute force, greedy, implementation

New Year Candles

implementation

K-Periodic Array

greedy, implementation, math

Sereja and Coat Rack

implementation

Table

constructive algorithms, greedy, implementation

Group of Students

brute force, greedy, implementation

Jeff and Digits

brute force, implementation, math

Xenia and Ringroad

implementation

Vasily the Bear and Triangle

implementation, math

Candy Bags

implementation

Ciel and Dancing

greedy

Ksusha and Array

brute force, number theory, sortings

Cows and Poker Game

brute force, implementation

Dima and Friends

implementation, math

Buttons

implementation, math

Roadside Trees (Simplified Edition)

greedy, implementation

Little Elephant and Chess

brute force, strings

Paper Work

greedy

Free Cash

implementation

Reading

sortings