Copper Squander

binary search, data structures, dsu, graphs, greedy, math, sortings, ternary search

Precision Alignment

binary search, brute force, greedy, implementation

Lavencia Oranges

binary search, constructive algorithms, dp, greedy

Array Emptying

binary search, binary search, data structures, greedy, greedy

Target Infection

binary search, brute force, greedy, implementation, two pointers

KiaKio and Energy Intervals

binary search, bitmasks, data structures, divide and conquer, dsu, greedy, trees, two pointers

Deque Malfunction

binary search, data structures, dp, greedy

MEX Replacement

binary search, brute force, greedy, implementation, math, sortings

Culling Game

binary search, data structures, implementation, two pointers

What Does the Cow Say?

binary search, data structures, dfs and similar, greedy, trees

Cyclic Balance

binary search, constructive algorithms, dp, math

Index Removal

binary search, data structures, math

Bermuda Rectangle

binary search, implementation, math, number theory, two pointers

How Long Until Nothing Remains?

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

Chronostasis

binary search, data structures, greedy

Hypercarp and Interdimensional Jumps

binary search, brute force, geometry, greedy, implementation, math

Risky Tower

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

Matrix Elimination

binary search, greedy, math

Excuse for Breaks

binary search, brute force, greedy, math, two pointers

Summmon

binary search, data structures, greedy, implementation, math, number theory

Revival

binary search, data structures, math, two pointers

Duck Surplus

binary search, greedy

Criterion in Burlandia

binary search, bitmasks, brute force, brute force, data structures, data structures, dfs and similar, divide and conquer, implementation, trees, two pointers

Brand New Tatar TV Show

binary search, constructive algorithms, dp, games, games, math

Seating Arrangement (Hard Version)

binary search, binary search, binary search, greedy, greedy, greedy, math, two pointers

Seating Arrangement (Easy Version)

binary search, binary search, dp, greedy, greedy, two pointers, two pointers

Cake Leveling

binary search, greedy, math

Game on Growing Tree

binary search, dfs and similar, divide and conquer, dp, games, implementation, trees

Minimum Influence

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

Roadworks

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

Load Unbalancing

binary search, bitmasks, dp, greedy

Me When Median Problem

binary search, greedy

Momoyo and the Network

binary search, dfs and similar, dfs and similar, divide and conquer, divide and conquer, dp, trees

Sanae, Cross and Color

binary search, data structures, implementation

Cirno and Number (Hard Version)

binary search, dfs and similar, dp, greedy, implementation

Cirno and Number (Easy Version)

binary search, brute force, dp, greedy, implementation

Drowning

binary search, data structures, math

It Just Keeps Going Sideways

binary search, data structures, data structures, dp, dp, greedy, greedy, math, math

It All Went Sideways

binary search, data structures, dp, greedy

Palindromex

binary search, brute force, constructive algorithms, data structures, greedy, implementation, two pointers

Mental Monumental (Easy Version)

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

String Cutting

binary search, brute force, brute force, greedy, hashing, string suffix structures, string suffix structures, strings, strings

Zhily and Barknights

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

Statistics on Tree

binary search, brute force, dfs and similar, dfs and similar, divide and conquer, graphs, trees, trees

Seek the Truth

binary search, bitmasks, constructive algorithms, interactive

Unique Values (Hard version)

binary search, bitmasks, constructive algorithms, interactive

Unique Values (Easy version)

binary search, constructive algorithms, divide and conquer, interactive, math

The 67th XOR Problem

binary search, bitmasks, brute force

Definitely Larger

binary search, constructive algorithms, data structures, graphs, greedy, sortings

RReeppeettiittiioonn

binary search, brute force, implementation, math, number theory

Equal Multisets (Easy Version)

binary search, brute force, greedy, two pointers

A Simple Problem

binary search, data structures, greedy, math, trees

Bowser's Castle (Easy Version)

binary search, constructive algorithms, divide and conquer, greedy, interactive, trees

Hanabi

binary search, data structures, dp, dsu, flows, graph matchings, graphs, greedy

Time Display Stickers

binary search

Subtree Removal Game

binary search, games, trees

Sum of Fractions

binary search, brute force, combinatorics, data structures, greedy, math, number theory, two pointers

Binary Search with One Swap

binary search, divide and conquer, dp, hashing, math, two pointers

Probabilistic Card Game

binary search, data structures, games, greedy, math, ternary search

Test Generator

binary search, bitmasks, greedy, math

Supersequence

*special problem, binary search, greedy

Friendly Numbers

binary search, brute force, expression parsing, math, schedules

Fuzzy Concatenation (Hard version)

binary search, bitmasks, data structures, dp, greedy, string suffix structures

Fuzzy Concatenation (Easy Version)

binary search, bitmasks, brute force, data structures, greedy, string suffix structures

Interactive Graph (Simple Version)

binary search, combinatorics, dfs and similar, dp, graphs, interactive

Idiot First Search and Queries

binary search, data structures, dp, graphs, trees

Monster Game

binary search, sortings, two pointers

All-in-one Gun

binary search, greedy, math

Al Fine (Maximizing Version)

binary search, data structures, divide and conquer, trees

BattleCows 2

binary search, brute force, data structures, dp, greedy

The Robotic Rush

binary search, greedy, implementation, two pointers

Nastiness of Segments

binary search, data structures

Huge Pile

binary search, dfs and similar, dp, graphs, math

Minimise Cost

binary search, dp, greedy, sortings

War Strategy

binary search, greedy, math, two pointers

New Year's Gifts

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

Greta's Game

binary search, dp, graphs, greedy, math

Doorway

binary search, data structures, sortings

Cacti Classification

binary search, constructive algorithms, interactive, math

Alphabet City

binary search, math, strings

Flatten or Concatenate

binary search, divide and conquer, interactive

Game of Scientists (Version 2)

binary search, chinese remainder theorem, dfs and similar, interactive, math

Isla's Memory Thresholds

binary search, brute force, data structures, divide and conquer, math

Circles Are Far from Each Other

binary search, greedy

Shiori Miyagi and Maximum Array Score

binary search, data structures, dp, sortings

Rae Taylor and Trees (hard version)

binary search, constructive algorithms, data structures, dp, dsu, greedy, implementation, trees

Rae Taylor and Trees (easy version)

binary search, data structures, dp, dsu, greedy, implementation, trees

Quotient and Remainder

binary search, greedy, two pointers

Removal of a Sequence (Hard Version)

binary search, divide and conquer, greedy, implementation, math, number theory

Removal of a Sequence (Easy Version)

binary search, implementation, math, number theory

Locate

binary search, combinatorics, communication, constructive algorithms, greedy, interactive

khba Loves to Sleep!

binary search, data structures, geometry, greedy, implementation

Chain Prefix Rank (Hard Version)

binary search, combinatorics, data structures, dfs and similar, dp, graphs, math, trees

Dungeon

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

Diadrash (Hard Version)

binary search, interactive, math, sortings

Diadrash (Easy Version)

binary search, brute force, divide and conquer, implementation, interactive

Beautiful Permutation

binary search, interactive

Locked Out

binary search, data structures, dp, greedy

Grand Finale: Snakes

binary search, interactive, ternary search

Inverse Minimum Partition (Easy Version)

binary search, brute force, dp, geometry, greedy, math, two pointers