红 入门
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-std=c++11
章节 1. AT(入门)
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| 题目 | 尝试 | AC | 难度 |
|---|---|---|---|
| ATabc377a *【字符串基础】字符统计 | 7 | 3 | 10 |
| ATabc377b [ABC377B] Avoid Rook Attack | 3 | 3 | 10 |
| ATabc376a [ABC376A] Candy Button | 3 | 3 | 10 |
| ATabc375a [ABC375A] Seats | 5 | 3 | 10 |
| ATabc375b [ABC375B] Traveling Takahashi Problem | 2 | 2 | 10 |
| ATabc374a [ABC374A] Takahashi san 2 | 2 | 2 | 10 |
| ATabc374b [ABC374B] Unvarnished Report | 1 | 1 | 10 |
| ATabc373a [ABC373A] September | 1 | 1 | 10 |
| ATabc373b [ABC373B] 1D Keyboard | 1 | 1 | 10 |
| ATabc373c [ABC373C] Max Ai+Bj | 2 | 2 | 10 |
| ATabc372a [ABC372A] delete . | 1 | 1 | 10 |
| ATabc371a [ABC371A] Jiro | 1 | 1 | 10 |
| ATabc371b [ABC371B] Taro | 5 | 4 | 10 |
| ATabc370a [ABC370A] Raise Both Hands | 1 | 1 | 10 |
| ATabc370b [ABC370B] Binary Alchemy | 1 | 1 | 10 |
| ATabc369a [ABC369A] 369 | 1 | 1 | 10 |
| ATabc369b [ABC369B] Piano 3 | 1 | 1 | 10 |
| ATabc368a [ABC368A] Cut | 1 | 1 | 10 |
| ATabc368b [ABC368B] Decrease 2 max elements | 1 | 1 | 10 |
| ATabc367a [ABC367A] Shout Everyday | 2 | 2 | 10 |
| ATabc367b [ABC367B] Cut .0 | 1 | 1 | 10 |
| ATabc366a [ABC366A] Election 2 | 1 | 1 | 10 |
| ATabc365a [ABC365A] Leap Year | 1 | 1 | 10 |
| ATabc365b [ABC365B] Second Best | 1 | 1 | 10 |
| ATabc364a [ABC364A] Glutton Takahashi | 9 | 2 | 10 |
| ATabc363a [ABC363A] Piling Up | 1 | 1 | 10 |
| ATabc362a [ABC362A] Buy a Pen | 1 | 1 | 10 |
| ATabc361a [ABC361A] Insert | 2 | 2 | 10 |
| ATabc361b [ABC361B] Intersection of Cuboids | 1 | 1 | 10 |
| ATabc360a [ABC360A] A Healthy Breakfast | 1 | 1 | 10 |
| ATabc359a [ABC359A] Count Takahashi | 1 | 1 | 10 |
| ATabc359b [ABC359B] Couples | 1 | 1 | 10 |
| ATabc358a [ABC358A] Welcome to AtCoder Land | 1 | 1 | 10 |
| ATabc358b [ABC358B] Ticket Counter | 1 | 1 | 10 |
| ATabc357a [ABC357A] Sanitize Hands | 1 | 1 | 10 |
| ATabc357b [ABC357B] Uppercase and Lowercase | 1 | 1 | 10 |
| ATabc356a [ABC356A] Subsegment Reverse | 1 | 1 | 10 |
| ATabc356b [ABC356B] Nutrients | 1 | 1 | 10 |
| ATabc355a [ABC355A] Who Ate the Cake? | 1 | 1 | 10 |
| ATabc355b [ABC355B] Piano 2 | 1 | 1 | 10 |
| ATabc354a [ABC354A] Exponential Plant | 1 | 1 | 10 |
| ATabc354b [ABC354B] AtCoder Janken 2 | 1 | 1 | 10 |
| ATabc353a [ABC353A] Buildings | 1 | 1 | 10 |
| ATabc353b [ABC353B] AtCoder Amusement Park | 1 | 1 | 10 |
| ATabc352a [ABC352A] AtCoder Line | 2 | 2 | 10 |
| ATabc351a [ABC351A] The bottom of the ninth | 1 | 1 | 10 |
| ATabc351b [ABC351B] Spot the Difference | 1 | 1 | 10 |
| ATabc350a [ABC350A] Past ABCs | 1 | 1 | 10 |
| ATabc350b [ABC350B] Dentist Aoki | 1 | 1 | 10 |
| ATabc349a [ABC349A] Zero Sum Game | 1 | 1 | 10 |
| ATabc349b [ABC349B] Commencement | 1 | 1 | 10 |
| ATabc348a [ABC348A] Penalty Kick | 1 | 1 | 10 |
| ATabc348b [ABC348B] Farthest Point | 1 | 1 | 10 |
| ATabc347a [ABC347A] Divisible | 1 | 1 | 10 |
| ATabc346a [ABC346A] Adjacent Product | 1 | 1 | 10 |
| ATabc346b [ABC346B] Piano | 1 | 1 | 10 |
| ATabc345a [ABC345A] Leftrightarrow | 1 | 1 | 10 |
| ATabc345b [ABC345B] Integer Division Returns | 1 | 1 | 10 |
| ATabc344a [ABC344A] Spoiler | 1 | 1 | 10 |
| ATabc343a [ABC343A] Wrong Answer | 1 | 1 | 10 |
| ATabc342a [ABC342A] Yay! | 1 | 1 | 10 |
| ATabc342b [ABC342B] Which is ahead? | 1 | 1 | 10 |
| ATabc341a [ABC341A] Print 341 | 1 | 1 | 10 |
| ATabc341b [ABC341B] Foreign Exchange | 1 | 1 | 10 |
| ATabc340a [ABC340A] Arithmetic Progression | 1 | 1 | 10 |
| ATabc340b [ABC340B] Append | 1 | 1 | 10 |
| ATabc339a [ABC339A] TLD | 1 | 1 | 10 |
| ATabc339b [ABC339B] Langton‘s Takahashi | 1 | 1 | 10 |
| ATabc338a [ABC338A] Capitalized? | 1 | 1 | 10 |
| ATabc338b [ABC338B] Frequency | 1 | 1 | 10 |
| ATabc337a [ABC337A] Scoreboard | 1 | 1 | 10 |
| ATabc337b [ABC337B] Extended ABC | 1 | 1 | 10 |
| ATabc337c [ABC337C] Lining Up 2 | 1 | 1 | 10 |
| ATabc336a [ABC336A] Long Loong | 1 | 1 | 10 |
| ATabc336b [ABC336B] CTZ | 1 | 1 | 10 |
| ATabc335a [ABC335A] 202<s>3</s> | 2 | 2 | 10 |
| ATabc335b [ABC335B] Tetrahedral Number | 1 | 1 | 10 |
| ATabc334a [ABC334A] Christmas Present | 1 | 1 | 10 |
| ATabc333a [ABC333A] Three Threes | 1 | 1 | 10 |
| ATabc333b [ABC333B] Pentagon | 1 | 1 | 10 |
| ATabc332a [ABC332A] Online Shopping | 1 | 1 | 10 |
| ATabc332b [ABC332B] Glass and Mug | 1 | 1 | 10 |
| ATabc331a [ABC331A] Tomorrow | 1 | 1 | 10 |
| ATabc331b [ABC331B] Buy One Carton of Milk | 1 | 1 | 10 |
| ATabc330a [ABC330A] Counting Passes | 1 | 1 | 10 |
| ATabc330b [ABC330B] Minimize Abs 1 | 1 | 1 | 10 |
| ATabc329a [ABC329A] Spread | 2 | 2 | 10 |
| ATabc329b [ABC329B] Next | 2 | 2 | 10 |
| ATabc328a [ABC328A] Not Too Hard | 1 | 1 | 10 |
| ATabc328b [ABC328B] 11/11 | 1 | 1 | 10 |
| ATabc327a [ABC327A] ab | 1 | 1 | 10 |
| ATabc327b [ABC327B] A^A | 2 | 2 | 10 |
| ATabc327c [ABC327C] Number Place | 1 | 1 | 10 |
| ATabc326a [ABC326A] 2UP3DOWN | 1 | 1 | 10 |
| ATabc326b [ABC326B] 326-like Numbers | 1 | 1 | 10 |
| ATabc325a [ABC325A] Takahashi san | 1 | 1 | 10 |
| ATabc324a [ABC324A] Same | 1 | 1 | 10 |
| ATabc323a [ABC323A] Weak Beats | 1 | 1 | 10 |
| ATabc322a [ABC322A] First ABC 2 | 1 | 1 | 10 |
| ATabc321a [ABC321A] 321-like Checker | 2 | 2 | 10 |
| ATabc320a [ABC320A] Leyland Number | 1 | 1 | 10 |
| ATabc320b [ABC320B] Longest Palindrome | 1 | 1 | 10 |
| ATabc319a [ABC319A] Legendary Players | 1 | 1 | 10 |
| ATabc318a [ABC318A] Full Moon | 1 | 1 | 10 |
| ATabc317a [ABC317A] Potions | 1 | 1 | 10 |
| ATabc315a [ABC315A] tcdr | 1 | 1 | 10 |
| ATabc314a [ABC314A] 3.14 | 1 | 1 | 10 |
| ATabc313a [ABC313A] To Be Saikyo | 1 | 1 | 10 |
| ATabc313b [ABC313B] Who is Saikyo? | 1 | 1 | 10 |
| ATabc312a [ABC312A] Chord | 1 | 1 | 10 |
| ATabc311a [ABC311A] First ABC | 1 | 1 | 10 |
| ATabc310a [ABC310A] Order Something Else | 1 | 1 | 10 |
| ATabc310b [ABC310B] Strictly Superior | 1 | 1 | 10 |
| ATabc310c [ABC310C] Reversible | 1 | 1 | 10 |
| ATabc309a [ABC309A] Nine | 1 | 1 | 10 |
| ATabc309b [ABC309B] Rotate | 1 | 1 | 10 |
| ATabc308a [ABC308A] New Scheme | 1 | 1 | 10 |
| ATabc307a [ABC307A] Weekly Records | 1 | 1 | 10 |
| ATabc306a *【字符串基础】字符串的输入输出 | 1 | 1 | 10 |
| ATabc306b *【进制转换】进制转换入门 | 1 | 1 | 10 |
| ATabc306c [ABC306C] Centers | 1 | 1 | 10 |
| ATabc305a [ABC305A] Water Station | 1 | 1 | 10 |
| ATabc305b [ABC305B] ABCDEFG | 1 | 1 | 10 |
| ATabc304a [ABC304A] First Player | 1 | 1 | 10 |
| ATabc304b [ABC304B] Subscribers | 2 | 1 | 10 |
| ATabc303a [ABC303A] Similar String | 1 | 1 | 10 |
| ATabc303b [ABC303B] Discord | 1 | 1 | 10 |
| ATabc302a [ABC302A] Attack | 1 | 1 | 10 |
| ATabc301a [ABC301A] Overall Winner | 1 | 1 | 10 |
| ATabc301b [ABC301B] Fill the Gaps | 1 | 1 | 10 |
| ATabc300a [ABC300A] N-choice question | 1 | 1 | 10 |
| ATabc299a [ABC299A] Treasure Chest | 1 | 1 | 10 |
| ATabc299b [ABC299B] Trick Taking | 1 | 1 | 10 |
| ATabc299c [ABC299C] Dango | 2 | 1 | 10 |
| ATabc298a [ABC298A] Job Interview | 1 | 1 | 10 |
| ATabc298b [ABC298B] Coloring Matrix | 1 | 1 | 10 |
| ATabc297a [ABC297A] Double Click | 1 | 1 | 10 |
| ATabc297b [ABC297B] chess960 | 1 | 1 | 10 |
| ATabc297c [ABC297C] PC on the Table | 1 | 1 | 10 |
| ATabc297d [ABC297D] Count Subtractions | 5 | 3 | 10 |
| ATabc296a [ABC296A] Alternately | 1 | 1 | 10 |
| ATabc296b [ABC296B] Chessboard | 1 | 1 | 10 |
| ATabc295a [ABC295A] Probably English | 1 | 1 | 10 |
| ATabc295b [ABC295B] Bombs | 1 | 1 | 10 |
| ATabc295c [ABC295C] Socks | 1 | 1 | 10 |
| ATabc294a [ABC294A] Filter | 1 | 1 | 10 |
| ATabc294b [ABC294B] ASCII Art | 1 | 1 | 10 |
| ATabc294c [ABC294C] Merge Sequences | 1 | 1 | 10 |
| ATabc293a [ABC293A] Swap Odd and Even | 1 | 1 | 10 |
| ATabc293b [ABC293B] Call the ID Number | 1 | 1 | 10 |
| ATabc292a [ABC292A] CAPS LOCK | 1 | 1 | 10 |
| ATabc292b [ABC292B] Yellow and Red Card | 1 | 1 | 10 |
| ATabc291a [ABC291A] camel Case | 4 | 3 | 10 |
| ATabc291b [ABC291B] Trimmed Mean | 1 | 1 | 10 |
| ATabc291c [ABC291C] LRUD Instructions 2 | 1 | 1 | 10 |
| ATabc290a [ABC290A] Contest Result | 1 | 1 | 10 |
| ATabc290b [ABC290B] Qual B | 1 | 1 | 10 |
| ATabc290c [ABC290C] Max MEX | 1 | 1 | 10 |
| ATabc289a [ABC289A] flip | 1 | 1 | 10 |
| ATabc289b [ABC289B] レ | 1 | 1 | 10 |
| ATabc288a [ABC288A] Many A+B Problems | 1 | 1 | 10 |
| ATabc288b [ABC288B] Qualification Contest | 1 | 1 | 10 |
| ATabc287a [ABC287A] Majority | 1 | 1 | 10 |
| ATabc287b [ABC287B] Postal Card | 1 | 1 | 10 |
| ATabc286a [ABC286A] Range Swap | 1 | 1 | 10 |
| ATabc286b [ABC286B] Cat | 1 | 1 | 10 |
| ATabc285a [ABC285A] Edge Checker 2 | 1 | 1 | 10 |
| ATabc285b [ABC285B] Longest Uncommon Prefix | 1 | 1 | 10 |
| ATabc285c [ABC285C] abc285_brutmhyhiizp | 1 | 1 | 10 |
| ATabc284a [ABC284A] Sequence of Strings | 1 | 1 | 10 |
| ATabc284b [ABC284B] Multi Test Cases | 1 | 1 | 10 |
| ATabc283a [ABC283A] Power | 1 | 1 | 10 |
| ATabc283b [ABC283B] First Query Problem | 1 | 1 | 10 |
| ATabc283c [ABC283C] Cash Register | 1 | 1 | 10 |
| ATabc282a [ABC282A] Generalized ABC | 1 | 1 | 10 |
| ATabc282c [ABC282C] String Delimiter | 1 | 1 | 10 |
| ATabc281a [ABC281A] Count Down | 1 | 1 | 10 |
| ATabc281b [ABC281B] Sandwich Number | 1 | 1 | 10 |
| ATabc281c [ABC281C] Circular Playlist | 3 | 3 | 10 |
| ATabc280a [ABC280A] Pawn on a Grid | 1 | 1 | 10 |
| ATabc280b [ABC280B] Inverse Prefix Sum | 1 | 1 | 10 |
| ATabc280c [ABC280C] Extra Character | 1 | 1 | 10 |
| ATabc279a [ABC279A] wwwvvvvvv | 1 | 1 | 10 |
| ATabc279b [ABC279B] LOOKUP | 1 | 1 | 10 |
| ATabc279c [ABC279C] RANDOM | 1 | 1 | 10 |
| ATabc278a [ABC278A] Shift | 1 | 1 | 10 |
| ATabc278b [ABC278B] Misjudge the Time | 1 | 1 | 10 |
| ATabc277a [ABC277A] ^{-1} | 1 | 1 | 10 |
| ATabc277b [ABC277B] Playing Cards Validation | 1 | 1 | 10 |
| ATabc276a [ABC276A] Rightmost | 1 | 1 | 10 |
| ATabc275a [ABC275A] Find Takahashi | 1 | 1 | 10 |
| ATabc275b [ABC275B] ABC-DEF | 1 | 1 | 10 |
| ATabc274a [ABC274A] Batting Average | 1 | 1 | 10 |
| ATabc274b [ABC274B] Line Sensor | 1 | 1 | 10 |
| ATabc273a [ABC273A] A Recursive Function | 1 | 1 | 10 |
| ATabc273b [ABC273B] Broken Rounding | 1 | 1 | 10 |
| ATabc272a [ABC272A] Integer Sum | 1 | 1 | 10 |
| ATabc272b [ABC272B] Everyone is Friends | 1 | 1 | 10 |
| ATabc272c [ABC272C] Max Even | 1 | 1 | 10 |
| ATabc271a [ABC271A] 484558 | 1 | 1 | 10 |
| ATabc271b [ABC271B] Maintain Multiple Sequences | 1 | 1 | 10 |
| ATabc270a [ABC270A] 1-2-4 Test | 1 | 1 | 10 |
| ATabc270b [ABC270B] Hammer | 1 | 1 | 10 |
| ATabc269a [ABC269A] Anyway Takahashi | 1 | 1 | 10 |
| ATabc269b [ABC269B] Rectangle Detection | 1 | 1 | 10 |
| ATabc268a [ABC268A] Five Integers | 1 | 1 | 10 |
| ATabc268b [ABC268B] Prefix? | 1 | 1 | 10 |
| ATabc267a [ABC267A] Saturday | 1 | 1 | 10 |
| ATabc267b [ABC267B] Split? | 1 | 1 | 10 |
| ATabc266a [ABC266A] Middle Letter | 1 | 1 | 10 |
| ATabc266b [ABC266B] Modulo Number | 1 | 1 | 10 |
| ATabc265a [ABC265A] Apple | 1 | 1 | 10 |
| ATabc265b [ABC265B] Explore | 1 | 1 | 10 |
| ATabc265c [ABC265C] Belt Conveyor | 1 | 1 | 10 |
| ATabc264a [ABC264A] "atcoder".substr() | 1 | 1 | 10 |
| ATabc264b [ABC264B] Nice Grid | 1 | 1 | 10 |
| ATabc263a [ABC263A] Full House | 1 | 1 | 10 |
| ATabc263b [ABC263B] Ancestor | 1 | 1 | 10 |
| ATabc263c [ABC263C] Monotonically Increasing | 1 | 1 | 10 |
| ATabc262a [ABC262A] World Cup | 1 | 1 | 10 |
| ATabc262b [ABC262B] Triangle (Easier) | 1 | 1 | 10 |
| ATabc261a [ABC261A] Intersection | 1 | 1 | 10 |
| ATabc261b [ABC261B] Tournament Result | 1 | 1 | 10 |
| ATabc261c [ABC261C] NewFolder(1) | 1 | 1 | 10 |
| ATabc260a [ABC260A] A Unique Letter | 1 | 1 | 10 |
| ATabc260b [ABC260B] Better Students Are Needed! | 1 | 1 | 10 |
| ATabc259a [ABC259A] Growth Record | 1 | 1 | 10 |
| ATabc259b [ABC259B] Counterclockwise Rotation | 1 | 1 | 10 |
| ATabc258a [ABC258A] When? | 1 | 1 | 10 |
| ATabc257a [ABC257A] A to Z String 2 | 1 | 1 | 10 |
| ATabc257b [ABC257B] 1D Pawn | 1 | 1 | 10 |
| ATabc256a [ABC256A] 2^N | 1 | 1 | 10 |
| ATabc256b [ABC256B] Batters | 1 | 1 | 10 |
| ATabc255a [ABC255A] You should output ARC, though this is ABC. | 1 | 1 | 10 |
| ATabc254a [ABC254A] Last Two Digits | 1 | 1 | 10 |
| ATabc254b [ABC254B] Practical Computing | 1 | 1 | 10 |
| ATabc253a [ABC253A] Median? | 1 | 1 | 10 |
| ATabc253b [ABC253B] Distance Between Tokens | 1 | 1 | 10 |
| ATabc252a [ABC252A] ASCII code | 1 | 1 | 10 |
| ATabc252b [ABC252B] Takahashi's Failure | 1 | 1 | 10 |
| ATabc251a [ABC251A] Six Characters | 1 | 1 | 10 |
| ATabc251b [ABC251B] At Most 3 (Judge ver.) | 6 | 2 | 10 |
| ATabc251c [ABC251C] Poem Online Judge | 1 | 1 | 10 |
| ATabc250a [ABC250A] Adjacent Squares | 6 | 3 | 10 |
| ATabc250b [ABC250B] Enlarged Checker Board | 1 | 1 | 10 |
| ATarc152a [ARC152A] Seat Occupation | 1 | 1 | 10 |
| ATarc144a [ARC144A] Digit Sum of 2x | 1 | 1 | 10 |
| ATarc143a [ARC143A] Three Integers | 1 | 1 | 10 |
| ATarc136a [ARC136A] A ↔ BB | 1 | 1 | 10 |
| ATarc134a [ARC134A] Bridge and Sheets | 1 | 1 | 10 |
| ATarc131a [ARC131A] Two Lucky Numbers | 1 | 1 | 10 |
| ATarc131b [ARC131B] Grid Repainting 4 | 1 | 1 | 10 |
| ATarc130a [ARC130A] Remove One Character | 1 | 1 | 10 |
| ATarc123a [ARC123A] Arithmetic Sequence | 1 | 1 | 10 |
| ATarc120a [ARC120A] Max Add | 1 | 1 | 10 |
| ATarc119a [ARC119A] 119 × 2^23 + 1 | 1 | 1 | 10 |
| ATarc117a [ARC117A] God Sequence | 1 | 1 | 10 |
| ATarc116a [ARC116A] Odd vs Even | 1 | 1 | 10 |
| ATarc113a [ARC113A] A*B*C | 1 | 1 | 10 |
| ATarc112a [ARC112A] B = C | 1 | 1 | 10 |
| ATarc110a [ARC110A] Redundant Redundancy | 1 | 1 | 10 |
| ATarc109a [ARC109A] Hands | 1 | 1 | 10 |
| ATarc108a [ARC108A] Sum and Product | 1 | 1 | 10 |
| ATarc107a [ARC107A] Simple Math | 1 | 1 | 10 |
| ATarc106a [ARC106A] 106 | 1 | 1 | 10 |
| ATarc105a [ARC105A] Fourtune Cookies | 1 | 1 | 10 |
| ATarc104a [ARC104A] Plus Minus | 1 | 1 | 10 |
| ATarc096a [ABC095C] Half and Half | 1 | 1 | 10 |
| ATarc089a [ABC086C] Traveling | 1 | 1 | 10 |
| ATarc088a [ABC083C] Multiple Gift | 1 | 1 | 10 |
| ATarc087a [ABC082C] Good Sequence | 1 | 1 | 10 |
| ATarc086a [ABC081C] Not so Diverse | 1 | 1 | 10 |
| ATarc080a [ABC069C] 4-adjacent | 1 | 1 | 10 |
| ATarc078a [ABC067C] Splitting Pile | 1 | 1 | 10 |
| ATarc077a [ABC066C] pushpush | 1 | 1 | 10 |
| ATarc071a [ABC058C] 怪文書 | 1 | 1 | 10 |
| ATarc069a [ABC055C] Scc Puzzle | 1 | 1 | 10 |
| ATagc026a [AGC026A] Colorful Slimes 2 | 1 | 1 | 10 |
| ATagc025a [AGC025A] Digits Sum | 1 | 1 | 10 |
| ATagc019a [AGC019A] Ice Tea Store | 1 | 1 | 10 |
| ATagc002a [AGC002A] Range Product | 1 | 1 | 10 |
