Jury Marks

brute force, constructive algorithms

High Load

constructive algorithms, greedy, implementation, trees

Maximal GCD

constructive algorithms, greedy, math

Bank Hacking

constructive algorithms, data structures, dp, trees

Artsem and Saunders

constructive algorithms, dsu, math

Dasha and Very Difficult Problem

binary search, brute force, constructive algorithms, greedy, sortings

Unfair Poll

binary search, constructive algorithms, implementation, math

Pavel and barbecue

constructive algorithms, dfs and similar

Alyona and mex

constructive algorithms, greedy

Epidemic in Monstropolis

constructive algorithms, dp, greedy, two pointers

Minimum and Maximum

constructive algorithms, interactive

Subordinates

constructive algorithms, data structures, graphs, greedy, sortings

Sea Battle

constructive algorithms, greedy, math

T-shirts Distribution

constructive algorithms, flows, greedy

Recover the String

constructive algorithms, greedy, implementation, math

Fix a Tree

constructive algorithms, dfs and similar, dsu, graphs, trees

Simple Subset

constructive algorithms, greedy, number theory

Rebus

constructive algorithms, expression parsing, greedy, math

Processing Queries

*special problem, constructive algorithms, data structures, two pointers

Little Artem and Dance

brute force, constructive algorithms, implementation

Graph and String

constructive algorithms, graphs

Optimal Number Permutation

constructive algorithms

Polyline

constructive algorithms, implementation

Harmony Analysis

constructive algorithms

Lazy Student

constructive algorithms, data structures, graphs

Make Palindrome

constructive algorithms, greedy, strings

Marina and Vasya

constructive algorithms, greedy, strings

Once Again...

constructive algorithms, dp, matrices

GCD Table

constructive algorithms, greedy, number theory

Three Logos

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

Tablecity

constructive algorithms, implementation

Kyoya and Permutation

binary search, combinatorics, constructive algorithms, greedy, implementation, math

ZgukistringZ

brute force, constructive algorithms, implementation, strings

Regular Bridge

constructive algorithms, graphs, implementation

Soldier and Number Game

constructive algorithms, dp, math, number theory

Weird Chess

brute force, constructive algorithms, implementation

Handshakes

binary search, constructive algorithms, data structures, greedy

Correcting Mistakes

constructive algorithms, dp, greedy, hashing, strings, two pointers

Vasya and Chess

constructive algorithms, games, math

Candy Boxes

brute force, constructive algorithms, math

Bits

bitmasks, constructive algorithms

Interesting Array

constructive algorithms, data structures, trees

Dreamoon and Sets

constructive algorithms, greedy, math

Pashmak and Buses

combinatorics, constructive algorithms, math

4-point polyline

brute force, constructive algorithms, geometry, trees

Devu and Partitioning of the Array

brute force, constructive algorithms, implementation, number theory

Fox and Minimal path

bitmasks, constructive algorithms, graphs, implementation, math

Mittens

constructive algorithms, greedy, sortings

Two Heaps

combinatorics, constructive algorithms, greedy, implementation, math, sortings

Xenia and Weights

constructive algorithms, dfs and similar, dp, graphs, greedy, shortest paths

Palindrome

constructive algorithms, dp

Block Tower

constructive algorithms, dfs and similar, graphs

Yaroslav and Sequence

constructive algorithms

Parity Game

constructive algorithms

Convex Shape

constructive algorithms, implementation

Balls and Boxes

constructive algorithms, greedy, implementation

Challenging Balloons

constructive algorithms

Boring Partition

constructive algorithms

Little Elephant and Array

constructive algorithms, data structures

Clear Symmetry

constructive algorithms, dp, math

Cutting Figure

constructive algorithms, graphs, trees

Headquarters

constructive algorithms, math

Discounts

constructive algorithms, greedy, sortings

Terse princess

constructive algorithms, greedy

Lucky Number 2

constructive algorithms

Help General

constructive algorithms, greedy, implementation

Queue

constructive algorithms, greedy, sortings

Zero-One

constructive algorithms, games, greedy

Before Exam

constructive algorithms, implementation, sortings

Russian Roulette

constructive algorithms, greedy

Sets

constructive algorithms, hashing, implementation

Petya and His Friends

constructive algorithms, math, number theory

Dividing Island

constructive algorithms

Disposition

constructive algorithms, math

Planting Trees

constructive algorithms

3-cycles

constructive algorithms, graphs, greedy

Unordered Subsequence

constructive algorithms, greedy

Four Segments

brute force, constructive algorithms, geometry, implementation, math

Longest Regular Bracket Sequence

constructive algorithms, data structures, dp, greedy, sortings, strings