Students' Revenge

data structures, greedy, sortings

Guard Duty (medium)

binary search, dp, greedy, sortings

Lovely Matrix

dfs and similar, graphs, greedy, sortings

80-th Level Archeology

brute force, data structures, greedy, sortings

Banquet Preparations 2

greedy, sortings, two pointers

Gaining Rating

binary search, greedy, implementation, math, sortings, two pointers

Network Safety

dfs and similar, dsu, graphs, math, sortings

Compressed Tree

dfs and similar, dp, graphs, greedy, sortings, trees

Gift

dsu, graphs, sortings, trees

Trader Problem

data structures, dsu, greedy, sortings

A Heap of Heaps

brute force, data structures, math, sortings

ace5 and Task Order

constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings

Count The Rectangles

bitmasks, brute force, data structures, geometry, sortings

Two Houses

brute force, graphs, greedy, interactive, sortings

Ants in Leaves

dfs and similar, greedy, sortings, trees

Sofia and Strings

data structures, greedy, sortings, strings, two pointers

Irrigation

binary search, data structures, implementation, sortings, trees, two pointers

Cars

2-sat, constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings

Two Types of Spells

binary search, data structures, greedy, implementation, math, sortings

Nezzar and Nice Beatmap

constructive algorithms, geometry, greedy, math, sortings

Weights Division (hard version)

binary search, dfs and similar, greedy, sortings, trees, two pointers

Domino Principle

binary search, data structures, sortings

K-th Path

brute force, constructive algorithms, shortest paths, sortings

Anonymity Is Important

binary search, brute force, data structures, dsu, greedy, sortings

Happy Line

constructive algorithms, greedy, sortings

Antenna Coverage

data structures, dp, greedy, sortings

Telepanting

binary search, data structures, dp, sortings

Paint the Middle

dp, greedy, sortings, two pointers

Travelling Salesman Problem

binary search, data structures, dp, greedy, shortest paths, sortings, two pointers

Carrots for Rabbits

binary search, data structures, greedy, math, sortings

Magic Stones

constructive algorithms, math, sortings

Kate and imperfection

greedy, implementation, math, number theory, sortings, two pointers

Sequence

dp, sortings

Автобус

binary search, data structures, greedy, sortings

Property

greedy, sortings

Optimizer

data structures, greedy, sortings

Conveyor

sortings, two pointers

Moon Craters

dp, sortings

Parade

data structures, sortings

Berland Elections

greedy, sortings

Hostname Aliases

*special problem, binary search, data structures, implementation, sortings, strings

Maximize The Value

data structures, sortings

Field Photography

bitmasks, data structures, sortings

Playlist

math, probabilities, sortings

Runner's Problem

dp, matrices, sortings

Longest Array Deconstruction

data structures, divide and conquer, dp, sortings

Mahmoud and Ehab and the function

binary search, data structures, sortings

Counter Attack

data structures, dsu, graphs, hashing, sortings

Sockets

greedy, sortings

Distributing Parts

greedy, sortings

Permutation recovery

constructive algorithms, data structures, dfs and similar, graphs, greedy, math, sortings

Destroy it!

dp, implementation, sortings

Topforces Strikes Back

brute force, math, sortings

Characteristics of Rectangles

binary search, bitmasks, brute force, implementation, sortings

Time to Raid Cowavans

brute force, data structures, sortings

Permutation Sorting

data structures, sortings

Infinite Inversions

binary search, data structures, implementation, sortings, trees

The way home

binary search, data structures, dp, graphs, greedy, shortest paths, sortings

Autosynthesis

constructive algorithms, dfs and similar, graphs, greedy, sortings

Polygons

geometry, sortings

Fedor and coupons

binary search, data structures, greedy, sortings

Well played!

greedy, sortings

Ball Sorting

data structures, dp, sortings

Cartons of milk

binary search, data structures, greedy, sortings, two pointers

Rearrange Brackets

brute force, dp, greedy, sortings, strings

Space Harbour

data structures, implementation, math, sortings

Learning to Paint

binary search, data structures, dfs and similar, dp, greedy, implementation, sortings

Guess Game

bitmasks, data structures, games, math, probabilities, sortings, strings, trees

Paint the Tree

dp, sortings, trees

Shovels Shop

dp, greedy, sortings

Speedrun

brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers

Preorder

combinatorics, divide and conquer, dp, dsu, hashing, sortings, trees

Berland Beauty

constructive algorithms, dfs and similar, greedy, sortings, trees

Portals

data structures, dp, greedy, implementation, sortings

Euclid's nightmare

bitmasks, dfs and similar, dsu, graphs, greedy, math, sortings

New Year and Conference

binary search, data structures, hashing, sortings

New Year's Puzzle

brute force, dp, graph matchings, greedy, sortings

Points on Plane

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

Money Transfers

constructive algorithms, data structures, greedy, sortings

01 Tree

constructive algorithms, data structures, dsu, greedy, sortings, trees

Challenges in school №41

brute force, constructive algorithms, games, graphs, greedy, implementation, sortings

Boring Segments

data structures, sortings, trees, two pointers

Present

binary search, bitmasks, constructive algorithms, data structures, math, sortings

Swaps Again

constructive algorithms, implementation, sortings

Restorer Distance

binary search, greedy, math, sortings, ternary search

GCD of an Array

brute force, data structures, hashing, implementation, math, number theory, sortings, two pointers

Weights Distributing

brute force, graphs, greedy, shortest paths, sortings

Maximum Value

binary search, math, sortings, two pointers

Need For Brake

binary search, greedy, sortings

Lucky Sorting

constructive algorithms, sortings

General Mobilization

data structures, dfs and similar, sortings

Knights

geometry, graphs, shortest paths, sortings

Hydra

graphs, sortings

Sereja and the Arrangement of Numbers

graphs, greedy, sortings

Polycarp and Hay

dfs and similar, dsu, graphs, greedy, sortings

Water Taps

binary search, greedy, sortings

Stripe 2

binary search, dp, sortings

Multi-Colored Segments

binary search, data structures, math, sortings

Tokitsukaze and Strange Rectangle

data structures, divide and conquer, sortings, two pointers

Copy of a Copy of a Copy

constructive algorithms, dfs and similar, graphs, implementation, sortings