競技プログラミングでtesterを担当した問題リンクをまとめてみました。2025/06/09現在でtesterを引き受けた問題数は170問で、うち出題済みの問題は154問です。

writerを担当した問題リンクはこちらです。

yukicoder通常問題（公開済み136問＋未公開16問）

• No.3170 [Cherry 7th Tune KY] Even if you could say “See you …”
• No.3168 [Cherry 7th Tune D] Manhole
• No.3166 [Cherry 7th Tune *] 桜の守人
• No.3165 [Cherry 7th Tune A] Croissants Continu
• No.3164 [Chery 7th Tune B] La vie en rose
• No.3148 Min-Cost Destruction of Parentheses
• No.3146 RE: Parentheses Counting
• No.3145 Astral Parentheses Sequence
• No.3143 Colorless Green Parentheses Sleep Furiously
• No.3142 Balancing with O=>X Flip
• No.3141 Balancing with X=>O Flip
• No.3140 Weird Parentheses Game
• No.3135 AAABC
• No.3078 Difference Sum Query
• No.3077 Goodstuff Deck Builder(Hard)
• No.3076 Goodstuff Deck Builder
• No.3074 Divide Points Fairly
• No.3065 Speedrun (Normal)
• No.3064 Speedrun (Easy)
• No.3034 コーエン-マコーレー抽象単体複体
• No.3033 エルハートの数え上げ
• No.3032 ホモトピー入門
• No.3031 曲面の向き付け
• No.3030 Kruskal-Katona
• No.3029 オイラー標数
• No.3028 No.9999
• No.3027 f-列とh-列
• No.3023 Utility is Max?
• No.3020 ユークリッドの互除法・改
• No.3008 ワンオペ警備員
• No.3006 ベイカーの問題
• No.3005 トレミーの問題
• No.3004 ヤング図形
• No.3003 多項式の割り算 ～hard～
• No.3002 多項式の割り算 ～easy～
• No.3001 ヘビ文字列
• No.2996 Floor Sum
• No.2994 べき内積
• No.2983 Christmas Color Grid (Advent Calender ver.)
• No.2977 Kth Xor Pair
• No.2961 Shiny Monster Master
• No.2957 Combo Deck Builder
• No.2955 Pizza Delivery Plan
• No.2954 Calculation of Exponentiation
• No.2953 Maximum Right Triangle
• No.2909 Imaginary Summer
• No.2890 Chiffon
• No.2889 Rusk
• No.2843 Birthday Present Struggle
• No.2842 Birthday
• No.2834 Work to Play
• No.2833 Count Taiko Results
• No.2832 Nana’s Fickle Adventure
• No.2831 Cos Bomb Crasher
• No.2830 Don’t Stop the Game
• No.2829 GCD Divination
• No.2828 Remainder Game
• No.2827 Enter User Name to Play
• No.2788 4-33 Hard
• No.2783 4-33 Easy
• No.2772 Appearing Even Times
• No.2768 Password Crack
• No.2767 Add to Divide
• No.2765 Cross Product
• No.2754 Cumulate and Drop
• No.2751 429-like Number
• No.2750 Number of Prime Factors
• No.2725 Coprime Game 2
• No.2723 Fortune-telling by Flowers
• No.2722 Kenken Fight
• No.2721 “Don’t say N” Game
• No.2716 Falcon Method
• No.2715 Unique Chimatagram
• No.2714 Amaou
• No.2665 Minimize Inversions of Deque
• No.2664 Prime Sum
• No.2663 Zero-Sum Submatrices
• No.2656 XOR Slimes
• No.2655 Increasing Strides
• No.2651 [Cherry 6th Tune B] Complex комбинат
• No.2650 [Cherry 6th Tune *] セイジャク
• No.2649 [Cherry 6th Tune C] Anthem Flower
• No.2617 容量3のナップザック
• No.2616 中央番目の中央値
• No.2615 ペアの作り方
• No.2614 Delete ABC
• No.2593 Reorder and Mod 120
• No.2590 100000 Days of Christmas
• No.2585 How many “Who is Santa?”
• No.2581 [Cherry Anniversary 3] 28輪の桜のブーケ
• No.2577 Simple Permutation Guess
• No.2542 Yokan for Two
• No.2541 Divide 01 String
• No.2531 Coloring Vertices on Namori
• No.2526 Kth Not-divisible Number
• No.2496 LCM between Permutations
• No.2495 Three Sets
• No.2456 Stamp Art
• No.2454 Former < Latter
• No.2453 Seat Allocation
• No.2452 Incline
• No.2451 Redistribute Integers
• No.2450 99-like Number
• No.2393 Bit Grid Connected Component
• No.2380 Sylow P-subgroup
• No.2379 Burnside’s Theorem
• No.2357 Guess the Function リアクティブ 遭難者 100 19
• No.2351 Butterfly in Summer
• No.2350 Four Seasons
• No.2308 [Cherry 5th Tune B] もしかして、真?
• No.2306 [Cherry 5th Tune C] ウソツキタマシイ
• No.2298 yukicounter
• No.2297 Best Grouping
• No.2289 順列ソート
• No.2246 1333-like Number
• No.2232 Miser’s Gift
• No.2226 Hello, Forgotten World!
• No.2210 equence Squence Seuence Shirotsume 130 11
• No.2203 POWER!!!!!
• No.2202 贅沢てりたまチキン
• No.2201 p@$$w0rd H20 166 10
• No.2197 Same Dish
• No.2195 AND Set
• No.2177 Recurring ab
• No.2147 ハノイの塔のおもちゃ
• No.2141 Enumeratest
• No.2140 Triangle
• No.2138 Add Bacon
• No.2131 Concon Substrings (COuNt Version)
• No.2127 Mod, Sum, Sum, Mod
• No.2126 MEX Game
• No.2112 All 2x2 are Equal
• No.2095 High Rise
• No.2092 Conjugation
• No.2079 aaabbc
• No.2065 Sum of Min

yukicoder教育的問題（未公開1問）

yukicoder数学的知識問題（公開済み3問）

• No.3009 Union-Find でつながろう！
• No.3007 組み紐
• No.2466 Root! Root! Root!

yukicoderネタ問題（公開済み5問）

• No.8110 WIP Editorial
• No.8109 GCD between Permutations
• No.8108 徐々におかしくなる数学クイズ
• No.8099 夜の道路は気をつけて運転しなければならない
• No.8098 tan ２

mofecoder（公開済み9問）

• TUATPC 2025 Spring A 628
• TUATPC 2025 Spring B TUATPC2024Summer (Heuristic) (Admin ver.) (Easy)
• TUATPC 2025 Spring C あみだくえりー
• TUATPC 2025 Spring D グラフで音を奏でよう♪
• TUATPC 2025 Spring E ngng 数
• TUATPC 2025 Spring F ngng 文字列
• TUATPC 2025 Spring G 抵抗器
• TUATPC 2025 Spring H TUATPC2024Summer (Heuristic) (Admin ver.) (Hard)
• TUATPC 2025 Spring I 逆転条件