Kevin and Teams

2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers

Kevin and Binary String (Hard Version)

2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers

Kevin and Binary String (Easy Version)

2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers

Kevin and And

2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers

Kevin and Numbers

2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers

Kevin and Puzzle

2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers

Kevin and Geometry

2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers

Kevin and Arithmetic

2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers

Expression Correction

brute force, expression parsing, strings

Help, what does it mean to be "Based"

brute force, constructive algorithms, expression parsing, implementation, sortings

Are You a Robot?

*special problem, *special problem, *special problem, expression parsing, strings

Who Tested?

*special problem, expression parsing, trees

Keep talking and nobody explodes -- easy

bitmasks, brute force, expression parsing

Catch Overflow!

data structures, expression parsing, implementation

Hyperspace Jump (easy)

expression parsing, math

Bitwise Formula

bitmasks, brute force, dfs and similar, expression parsing, implementation

Long number

expression parsing, math, number theory

Comments

dfs and similar, expression parsing, implementation, strings

Bill Total Value

expression parsing, implementation, strings

Text Document Analysis

expression parsing, implementation, strings

Rebus

constructive algorithms, expression parsing, greedy, math

Replace To Make Regular Bracket Sequence

data structures, expression parsing, math

Boolean Function

bitmasks, dp, expression parsing

Vanya and Brackets

brute force, dp, expression parsing, greedy, implementation, strings

Bracket Sequence

data structures, expression parsing, implementation

Formurosa

divide and conquer, dp, expression parsing

Programming Language

binary search, brute force, expression parsing, implementation

Try and Catch

expression parsing, implementation

Stack

*special problem, expression parsing, implementation

BHTML+BCSS

*special problem, dfs and similar, expression parsing

Unambiguous Arithmetic Expression

dp, expression parsing

Widget Library

dp, expression parsing, graphs, implementation

Facetook Priority Wall

expression parsing, implementation, strings

Perse-script

*special problem, expression parsing

Text Messaging

expression parsing, greedy, strings

Domain

*special problem, expression parsing

Expression

*special problem, expression parsing

Title

expression parsing

Corporation Mail

data structures, expression parsing, implementation

bHTML Tables Analisys

expression parsing

Email address

expression parsing, implementation

C*++ Calculations

expression parsing, greedy

Page Numbers

expression parsing, implementation, sortings, strings

Borze

expression parsing, implementation

Defining Macros

dp, expression parsing, implementation