Wrong Answer on test 233 (Easy Version)

dp

Arson In Berland Forest

binary search, graphs, graphs, shortest paths

Tree Factory

constructive algorithms, greedy, trees

Rock Is Push

binary search, dp

Paint the Tree

dp, sortings, trees

Sequence Sorting

dp, greedy, two pointers

Choose a Square

binary search, data structures, sortings

Game With String

games

Tourism

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

Harvester

implementation

The Light Square

2-sat, dfs and similar, greedy

Product Tuples

divide and conquer, fft

Xor Spanning Tree

divide and conquer, fft, graphs

Sum Queries?

data structures, greedy, implementation, math

Coloring Edges

constructive algorithms, dfs and similar, graphs

Wi-Fi

data structures, dp, greedy

Numerical Sequence (hard version)

binary search, math

Marbles

bitmasks, dp

Petya and Construction Set

constructive algorithms, graphs, math, sortings, trees

Unstable String Sort

data structures, dfs and similar, dsu, graphs, greedy, implementation, strings

King's Path

*special problem, math, trees

kotlinkotlinkotlinkotlin...

*special problem, graphs, implementation, strings

Double Permutation Inc.

*special problem, binary search, greedy

Teams

*special problem, binary search, greedy, math

Konrad and Company Evaluation

graphs

Kamil and Making a Stream

math, number theory, trees

Into Blocks (easy version)

data structures, dsu, greedy, implementation, two pointers

Rotate Columns (hard version)

bitmasks, dp, greedy, sortings

Rotate Columns (easy version)

bitmasks, brute force, dp, greedy, sortings

Let Them Slide

data structures, implementation

Remainder Problem

brute force, data structures, implementation

Palindromic Paths

implementation, interactive

Natasha, Sasha and the Prefix Sums

combinatorics, dp, math, number theory

Kirk and a Binary String (hard version)

data structures, greedy, math, strings

Kirk and a Binary String (easy version)

brute force, greedy, strings

Complete the Projects (hard version)

dp, greedy

Complete the Projects (easy version)

greedy

You Are Given Some Strings...

brute force, string suffix structures, strings

You Are Given a WASD-string...

brute force, data structures, dp, greedy, implementation, math, strings

Treasure Hunting

binary search, dp, greedy, implementation

Graph Traveler

brute force, data structures, dfs and similar, dp, graphs, implementation, math, number theory

Compress Words

brute force, hashing, implementation, string suffix structures, strings

Rectangle Painting 2

flows, graph matchings, graphs

Rectangle Painting 1

dp

Matching vs Independent Set

constructive algorithms, graphs, greedy, sortings

Culture Code

binary search, combinatorics, data structures, dp, shortest paths, sortings

K-th Path

brute force, constructive algorithms, shortest paths, sortings

Geometers Anonymous Club

data structures, geometry, math, sortings

OpenStreetMap

data structures, two pointers

Crossword Expert

combinatorics, dp, number theory, probabilities, two pointers

Count The Rectangles

bitmasks, brute force, data structures, geometry, sortings

Tokitsukaze and Strange Rectangle

data structures, divide and conquer, sortings, two pointers

Tokitsukaze and Duel

brute force, games, greedy

Array Beauty

dp

Count Pairs

math, matrices, number theory, two pointers

Add on a Tree: Revolution

constructive algorithms, dfs and similar, implementation, trees

Gang Up

flows, graphs

Expected Square Beauty

dp, math, probabilities

Tree Painting

dfs and similar, dp, trees

Subarray Sorting

data structures, sortings

Vus the Cossack and a Graph

dfs and similar, graphs, greedy, implementation

Vus the Cossack and a Field

divide and conquer, implementation, math

Playlist for Polycarp (easy version)

bitmasks, combinatorics, dp

Two Pizzas

bitmasks, brute force

Polycarp and Snakes

brute force, implementation

Daleks' Invasion (hard)

data structures, dsu, graphs, trees

Daleks' Invasion (medium)

dfs and similar, graphs, shortest paths, trees

Heidi and the Turing Test (Medium)

data structures

The Doctor Meets Vader (Medium)

flows, graph matchings, graphs, shortest paths, sortings

Heidi Learns Hashing (Medium)

brute force, number theory

Candy Box (hard version)

greedy, implementation, sortings

Topforces Strikes Back

brute force, math, sortings

Subsequences (easy version)

dp, graphs, implementation, shortest paths

Product Oriented Recurrence

dp, math, matrices, number theory

Complete Mirror

constructive algorithms, dfs and similar, dp, hashing, implementation, trees

A Story of One Country (Easy)

brute force, divide and conquer, sortings

Irrigation

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

Serge and Dining Room

binary search, data structures, graph matchings, greedy, implementation, math, trees

Short Colorful Strip

combinatorics, dfs and similar, dp

Destroy it!

dp, implementation, sortings

The Number of Subpermutations

brute force, data structures, divide and conquer, hashing, math

Minimal Segment Cover

data structures, dfs and similar, divide and conquer, dp, greedy, implementation, trees

Ehab and the Big Finale

constructive algorithms, divide and conquer, graphs, implementation, interactive, trees

Ehab and the Expected GCD Problem

combinatorics, dp, math, number theory

Nauuo and Pictures (easy version)

dp, probabilities

And Reachability

bitmasks, dp

Scalar Queries

combinatorics, data structures, math, sortings

Range Deleting

binary search, combinatorics, data structures, two pointers

Vicky's Delivery Service

data structures, dsu, graphs, hashing

The LCMs Must be Large

bitmasks, brute force, constructive algorithms, math, number theory

Cute Sequences

binary search, brute force, greedy, math

Microtransactions (hard version)

binary search, greedy, implementation

Microtransactions (easy version)

binary search, greedy

Magical Permutation

bitmasks, brute force, constructive algorithms, data structures, graphs, math

Mysterious Code

dp, strings

Permutation recovery

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

The minimal unique substring

constructive algorithms, math, strings

Inverse of Rows and Columns

brute force, constructive algorithms

Maximum Balanced Circle

constructive algorithms, dp, greedy, two pointers

Card Bag

dp, math, probabilities