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Overall Editorial

There is no editorial yet.

PracticeA - Welcome to AtCoder

There is no editorial yet.

ABC086A - Product

• ユーザ解説 by drken

ABC081A - Placing Marbles

• ユーザ解説 by drken

ABC081B - Shift only

There is no editorial yet.

ABC087B - Coins

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ABC083B - Some Sums

• ユーザ解説 by drken

ABC088B - Card Game for Two

• User Editorial by hamayanhamayan

ABC085B - Kagami Mochi

• User Editorial by hamayanhamayan

ABC085C - Otoshidama

• User Editorial by hamayanhamayan
• User Editorial by ngtkana
• ユーザ解説 by drken

ABC049C - 白昼夢 / Daydream

• ユーザ解説 by drken

ABC086C - Traveling

• User Editorial by hamayanhamayan

PracticeB - Interactive Sorting

There is no editorial yet.

FutureContest2019FinalA - モンスターテイマー

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Practice2A - Disjoint Set Union

• ユーザ解説 by drken

Practice2B - Fenwick Tree

• ユーザ解説 by drken

Practice2C - Floor Sum

• Official Editorial by yosupo
• User Editorial by sounansya

Practice2D - Maxflow

• ユーザ解説 by drken

Practice2E - MinCostFlow

• ユーザ解説 by drken

Practice2F - Convolution

• ユーザ解説 by drken

Practice2G - SCC

• ユーザ解説 by drken

Practice2H - Two SAT

• ユーザ解説 by drken

Practice2I - Number of Substrings

• ユーザ解説 by drken

Practice2J - Segment Tree

• ユーザ解説 by drken

Practice2K - Range Affine Range Sum

• ユーザ解説 by drken

Practice2L - Lazy Segment Tree

• ユーザ解説 by drken

memorytest - Memory Test 2

There is no editorial yet.

ABC259B - Counterclockwise Rotation

• Official Editorial by m_99
• Official Editorial by admin
• User Editorial by Trineutron

ABC244C - Yamanote Line Game

• Official Editorial by leaf1415
• Official 解説放送 by editorial_admin
• User Editorial by rsk0315
• User Editorial by cirno3153
• ユーザ解説 by drken

ABC169B - Multiplication 2

• User Editorial by hamayanhamayan
• 筋肉的解法 by cirno3153

ABC345G - Sugoroku 5

• Official Editorial by Nyaan
• User Editorial by KumaTachiRen
• User Editorial by potato167

ABC370D - Cross Explosion

• Official Editorial by Nyaan
• Official 解説放送 by editorial_admin
• ordered set を使わない解法 by toam
• より大きい制約で解く方法 by hiro1729
• さらにより大きい制約で解く方法 (O(Q log Q) 解法) by toam

ABC358D - Souvenirs

• Official Editorial by cn449
• Official 解説放送 by editorial_admin

ABC385D - Santa Claus 2

• Official Editorial by kyopro_friends
• Official 解説放送 by editorial_admin

DP_G - Longest Path

• ユーザ解説 by drken

DP_J - Sushi

• ユーザ解説 by drken

DP_L - Deque

• ユーザ解説 by drken
• User Editorial by maspy

ABC325D - Printing Machine

• Official 解説 by yuto1115
• Official Editorial by admin

ABC328E - Modulo MST

• Official Editorial by MMNMM
• Official Editorial by admin
• bitDPによる解法 by magurofly
• User Editorial by ngtkana

AHC040A - Packing Uncertain Rectangles

• HACK TO THE FUTURE 2025 参加記 by kaede2020
• DP by shinchan
• 300行弱の軽量実装の解法とAtCoder公式配信の同時視聴 by RinSakamichi
• AHC040参加記 by t_rakko
• 段数を√Nにする解法の劣化版 by hidehico
• AHC040参加記 by uta_ccc
• User Editorial by terry_u16
• AHC040参加記 by Gobi
• インタラクティブ問題のデバッグについて by plasmaeffect
• HTTF2025(AHC040)参加記 by yuuDot
• 解法メモ by poka

ABC411F - Contraction

• Official Editorial by mechanicalpenciI
• Official 解説放送 by editorial_admin

ABC421E - Yacht

• Official Editorial by kyopro_friends
• Official 解説放送 by editorial_admin