atcoder-solutionsatcoder-solutions

typical90

001

Yokan Party(★4)

002

Encyclopedia of Parentheses(★3)

003

Longest Circular Road(★4)

004

Cross Sum(★2)

005

Restricted Digits(★7)

006

Smallest Subsequence(★5)

007

CP Classes(★3)

008

AtCounter(★4)

009

Three Point Angle(★6)

010

Score Sum Queries(★2)

011

Gravy Jobs(★6)

012

Red Painting(★4)

013

Passing(★5)

014

We Used to Sing a Song Together(★3)

015

Don't be too close(★6)

016

Minimum Coins(★3)

017

Crossing Segments(★7)

018

Statue of Chokudai(★3)

019

Pick Two(★6)

020

Log Inequality(★3)

021

Come Back in One Piece(★5)

022

Cubic Cake(★2)

023

Avoid War(★7)

024

Select +/- One(★2)

025

Digit Product Equation(★7)

026

Independent Set on a Tree(★4)

027

Sign Up Requests (★2)

028

Cluttered Paper(★4)

029

Long Bricks(★5)

030

K Factors(★5)

031

VS AtCoder(★6)

032

AtCoder Ekiden(★3)

033

Not Too Bright(★2)

034

There are few types of elements(★4)

035

Preserve Connectivity(★7)

036

Max Manhattan Distance(★5)

037

Don't Leave the Spice(★5)

038

Large LCM(★3)

039

Tree Distance(★5)

040

Get More Money(★7)

041

Piles in AtCoder Farm(★7)

042

Multiple of 9(★4)

043

Maze Challenge with Lack of Sleep(★4)

044

Shift and Swapping(★3)

045

Simple Grouping(★6)

046

I Love 46(★3)

047

Monochromatic Diagonal(★7)

048

I will not drop out(★3)

049

Flip Digits 2(★6)

050

Stair Jump(★3)

051

Typical Shop(★5)

052

Dice Product(★3)

053

Discrete Dowsing(★7)

054

Takahashi Number(★6)

055

Select 5(★2)

056

Lucky Bag(★5)

057

Flip Flap(★6)

058

Original Calculator(★4)

059

Many Graph Queries(★7)

060

Chimera(★5)

061

Deck(★2)

062

Paint All(★6)

063

Monochromatic Subgrid(★4)

064

Uplift(★3)

065

RGB Balls 2(★7)

066

Various Arrays(★5)

067

Base 8 to 9(★2)

068

Paired Information(★5)

069

Colorful Blocks 2(★3)

070

Plant Planning(★4)

071

Fuzzy Priority(★7)

072

Loop Railway Plan(★4)

073

We Need Both a and b(★5)

074

ABC String 2(★6)

075

Magic For Balls(★3)

076

Cake Cut(★3)

077

Planes on a 2D Plane(★7)

078

Easy Graph Problem(★2)

079

Two by Two(★3)

080

Let's Share Bit(★6)

081

Friendly Group(★5)

082

Counting Numbers(★3)

083

Colorful Graph(★6)

084

There are two types of characters(★3)

085

Multiplication 085(★4)

086

Snuke's Favorite Arrays(★5)

087

Chokudai's Demand(★5)

088

Similar but Different Ways(★6)

089

Partitions and Inversions(★7)

090

Tenkei90's Last Problem(★7)

toyota2023summer-final-open

toyota-hc-2023spring

tessoku-book

A01

The First Problem

A02

Linear Search

A03

Two Cards

A04

Binary Representation 1

A05

Three Cards

A07

Event Attendance

A08

Two Dimensional Sum

A09

Winter in ALGO Kingdom

A10

Resort Hotel

A11

Binary Search 1

A12

Printer

A13

Close Pairs

A14

Four Boxes

A15

Compression

A16

Dungeon 1(※初版第 1 刷の B22 も同じ問題です)

A17

Dungeon 2

A18

Subset Sum

A19

Knapsack 1

A20

LCS

A21

Block Game

A22

Sugoroku

A23

All Free

A24

LIS

A25

Number of Routes

A26

Prime Check

A28

Blackboard

A30

Combination

A31

Divisors

A32

Game 1

A33

Game 2

A34

Game 3

A35

Game 4

A36

Travel

A37

Travel 2

A38

Black Company 1

A40

Triangle

A41

Tile Coloring

A42

Soccer

A43

Travel 3

A44

Change and Reverse

A45

Card Elimination

A46

Heuristic 1

A49

Heuristic 2

A51

Stack

A52

Queue

A53

Priority Queue

A54

Map

A55

Set

A56

String Hash

A57

Doubling

A58

RMQ (Range Maximum Queries)

A59

RSQ (Range Sum Queries)

A60

Stock Price

A61

Adjacent Vertices

A64

Shortest Path 2

A65

Road to Promotion

A66

Connect Query

A67

MST (Minimum Spanning Tree)

A68

Maximum Flow

A69

Bipartite Matching

A70

Lanterns

A71

Homework

A72

Tile Painting

A73

Marathon Route

A74

Board Game

A75

Examination

A76

River Crossing

B01

A+B Problem

B02

Divisor Check

B03

Supermarket 1

B04

Binary Representation 2

B06

Lottery

B08

Counting Points

B09

Papers

B11

Binary Search 2

B12

Equation

B13

Supermarket 2

B14

Another Subset Sum

B17

Frog 1 with Restoration

B18

Subset Sum with Restoration

B19

Knapsack 2

B20

Edit Distance

B21

Longest Subpalindrome

B23

Traveling Salesman Problem

B24

Many Boxes

B26

Output Prime Numbers

B27

Calculate LCM

B29

Power Hard

B30

Combination 2

B31

Divisors Hard

B32

Game 5

B33

Game 6

B34

Game 7

B36

Switching Lights

B37

Sum of Digits

B38

Heights of Grass

B39

Taro's Job

B40

Divide by 100

B41

Reverse of Euclid

B42

Two Faced Cards

B43

Quiz Contest

B44

Grid Operations

B45

Blackboard 2

B51

Bracket

B52

Ball Simulation

B54

Counting Same Values

B55

Difference

B56

Palindrome Queries

B57

Calculator

B58

Jumping

B59

Number of Inversions

B61

Influencer

B62

Print a Path

B64

Shortest Path with Restoration

B65

Road to Promotion Hard

B66

Typhoon

B67

Max MST

B68

ALGO Express

B69

Black Company 2

C01

Tax Rate

C02

Two Balls

C03

Stock Queries

C04

Divisor Enumeration

C05

Lucky Numbers

C06

Regular Graph

C07

ALGO-MARKET

C08

ALGO4

C10

A Long Grid

C11

Election

C12

Taro the Novel Writer

C13

Select 2

C14

Commute Route

C15

Many Meetings

C16

Flights

C17

Strange Data Structure?

C19

Gasoline Optimization Problem

C20

Mayor's Challenge

tenka1-2018-beginner

stage0-2021

Recruit-Programing-contest-practice

rco-contest-2017-qual

rcl-contest-2021-long

pakencamp-2019-day2

masters2025-final

loadchecking

kuronekoyamato-contest2019

hokudai-hitachi2019-2

hokudai-hitachi2019-1

hokudai-hitachi2017-2

hokudai-hitachi2017-1

future-meets-you-contest-2018-open

future-contest-2023-final-open

future-contest-2022-qual

future-contest-2022-final-open

future-contest-2021-final-open

future-contest-2020-final-2

future-contest-2020-final

future-contest-2018-qual

future-contest-2018-final

editor-update-test

code-festival-2015-morning-middle

code-festival-2015-morning-hard

code-festival-2015-exhibition

code-festival-2014-morning-middle

code-festival-2014-morning-hard

code-festival-2014-exhibition

cf17-tournament-round2-open

cf17-tournament-round1-open

cf17-exhibition-open

cf16-tournament-round3-open

bcu30-2019-qual

bcu30-2018-qual

atcoder13live

atcoder12live

atcoder11live