Fishingprince Plays With Array

constructive algorithms, greedy, implementation, math

Powers of Two

brute force, data structures, implementation, math

Anonymous Informant

brute force, dfs and similar, graphs, implementation

Nearest Minimums

implementation

Filling the Grid

implementation, math

PriceFixed

binary search, greedy, implementation, sortings, two pointers

The Morning Star

combinatorics, data structures, geometry, implementation, math, sortings

Yellow Cards

greedy, implementation, math

Word Correction

implementation

Asphalting Roads

implementation

Alternating Deck (hard version)

implementation

Fill in the Matrix

constructive algorithms, implementation

Good String

implementation, strings

PIN Codes

greedy, implementation

Gotta Catch Em' All!

implementation

Equalizing by Division (easy version)

brute force, implementation

Div. 64

implementation

Line to Cashier

implementation

Two Cakes

binary search, brute force, implementation

String Modification

brute force, constructive algorithms, implementation, sortings, strings

Plus from Picture

dfs and similar, implementation, strings

Game of Robots

implementation

Beautiful Divisors

brute force, implementation

Sonya and Hotels

implementation

Silly Mistake

greedy, implementation

Best Subsegment

implementation, math

Build a Contest

data structures, implementation

Sinking Ship

implementation, sortings, strings

Valera and Tubes

constructive algorithms, dfs and similar, implementation

Vladik and flights

constructive algorithms, greedy, implementation

LuoTianyi and the Show

greedy, implementation

Valera and Plates

greedy, implementation

Wet Shark and Bishops

combinatorics, implementation

Tiling Challenge

greedy, implementation

Salem and Sticks

brute force, implementation

Colorful Table

binary search, data structures, dp, implementation, math, two pointers

Hills And Valleys

brute force, implementation

Elections

implementation, math

Chess Cheater

greedy, implementation, sortings

Alex and broken contest

implementation, strings

Meeting of Old Friends

implementation, math

Local Extrema

brute force, implementation

Bouncing Ball

brute force, dp, implementation

Find Square

implementation

Monsters And Spells

binary search, data structures, dp, greedy, implementation, math, two pointers

Escape from Stones

constructive algorithms, data structures, implementation, two pointers

Queries on a String

implementation, strings

New Year and Ascent Sequence

binary search, combinatorics, data structures, dp, implementation, sortings

New Year and the Treasure Geolocation

brute force, constructive algorithms, greedy, implementation

Snow Footprints

greedy, implementation

Building a Fence

dp, greedy, implementation, two pointers

Soroban

implementation

Shower Line

brute force, implementation

Zero-Sum Prefixes

brute force, data structures, dp, greedy, implementation

Fault-tolerant Network

brute force, data structures, implementation

Approximating a Constant Range

dp, implementation, two pointers

Commentary Boxes

implementation, math

Vasya and Books

implementation, math

Ilya and a Colorful Walk

greedy, implementation

Diversity

greedy, implementation, strings

If at first you don't succeed...

implementation

Diagonal Walking

implementation

Shooshuns and Sequence

brute force, implementation

Minimum Binary Number

implementation

Accordion

greedy, implementation

Candies!

data structures, dp, implementation, math

Intense Heat

brute force, implementation, math

RGB Substring (easy version)

implementation

Book Reading

implementation

Catch Overflow!

data structures, expression parsing, implementation

Hongcow Learns the Cyclic Shift

implementation, strings

Collecting Beats is Fun

implementation

Wizards and Demonstration

implementation, math

Ticks

greedy, implementation

Decreasing String

implementation, strings

Shawarma Tent

brute force, geometry, greedy, implementation

Links and Pearls

implementation, math

An abandoned sentiment from past

constructive algorithms, greedy, implementation, sortings

Gourmet Cat

implementation, math

Hamster Farm

implementation

Inbox (100500)

implementation

Count Triangles

binary search, implementation, math, two pointers

Plug-in

implementation

Wilbur and Array

greedy, implementation

Yet Another Crosses Problem

implementation

Lala Land and Apple Trees

brute force, implementation, sortings

Odd sum

dp, greedy, implementation

A Blend of Springtime

implementation, strings

Restoring Password

implementation, strings

Valeriy and Deque

data structures, implementation

Timofey and a tree

dfs and similar, dp, dsu, graphs, implementation, trees

Funky Numbers

binary search, brute force, implementation

Torn Lucky Ticket

brute force, dp, hashing, implementation, math

TV Subscriptions (Hard Version)

implementation, two pointers

Vlad and an Odd Ordering

binary search, bitmasks, data structures, dp, implementation, math, number theory

Counting Rectangles

brute force, data structures, dp, implementation

Uniqueness

binary search, brute force, implementation, two pointers

Letter

implementation

Text Document Analysis

expression parsing, implementation, strings

Blown Garland

brute force, implementation, number theory