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AtCoder Beginner Contest 最新 20 回

Round	A	B	C	D	E	F	G

400	− ABC400 Party	− Sum of Geometric Series	− 2^a b^2	− Takahashi the Wall Breaker	− Ringo's Favorite Numbers 3	− Happy Birthday! 3	− Patisserie ABC 3
399	8Q Hamming Distance	5Q Ranking with Ties	2Q Make it Forest	1Q Switch Seats	3D Replace	2D Range Power Sum	6D Colorful Spanning Tree
398	7Q Doors in the Center	5Q Full House 3	4Q Uniqueness	1Q Bonfire	1D Tree Game	1D ABCBA	5D Not Only Tree Game
397	8Q Thermometer	5Q Ticket Gate Log	3Q Variety Split Easy	1D Cubes	1D Path Decomposition of a Tree	2D Variety Split Hard	5D Maximize Distance
396	7Q Triple Four	5Q Card Pile	3Q Buy Balls	2Q Minimum XOR Path	1D Min of Restricted Sum	1D Rotated Inversions	3D Flip Row or Col
395	7Q Strictly Increasing?	5Q Make Target	4Q Shortest Duplicate Subarray	2Q Pigeon Swap	1Q Flip Edge	1D Smooth Occlusion	4D Minimum Steiner Tree 2
394	8Q 22222	5Q cat	4Q Debug	3Q Colorful Bracket Sequence	1D Palindromic Shortest Path	1D Alkane	3D Dense Buildings
393	7Q Poisonous Oyster	6Q A..B..C	4Q Make it Simple	2Q Swap to Gather	1D GCD of Subset	1D Prefix LIS Query	6D Unevenness
392	− Shuffled Equation	− Who is Missing?	− Bib	− Doubles	− Cables and Servers	− Insert	− Fine Triplets
391	− Lucky Direction	− Seek Grid	− Pigeonhole Query	− Gravity	− Hierarchical Majority Vote	− K-th Largest Triplet	− Many LCS
390	− 12435	− Geometric Sequence	− Paint to make a rectangle	1Q Stone XOR	− Vitamin Balance	− Double Sum 3	− Permutation Concatenation
389	− 9x9	− tcaF	− Snake Queue	− Squares in Circle	− Square Price	− Rated Range	− Odd Even Graph
388	− ?UPC	− Heavy Snake	− Various Kagamimochi	− Coming of Age Celebration	− Simultaneous Kagamimochi	− Dangerous Sugoroku	− Simultaneous Kagamimochi 2
387	− Happy New Year 2025	− 9x9 Sum	− Snake Numbers	− Snaky Walk	− Digit Sum Divisible 2	− Count Arrays	− Prime Circuit
386	6Q Full House 2	6Q Calculator	3Q Operate 1	1Q Diagonal Separation	1D Maximize XOR	2D Operate K	5D Many MST
385	7Q Equally	5Q Santa Claus 1	2Q Illuminate Buildings	1Q Santa Claus 2	1D Snowflake Tree	2D Visible Buildings	4D Counting Buildings
384	8Q aaaadaa	6Q ARC Division	3Q Perfect Standings	2Q Repeated Sequence	1Q Takahashi is Slime 2	2D Double Sum 2	3D Abs Sum
383	6Q Humidifier 1	4Q Humidifier 2	2Q Humidifier 3	1Q 9 Divisors	1D Sum of Max Matching	2D Diversity	5D Bar Cover
358	8Q Welcome to AtCoder Land	6Q Ticket Counter	− Popcorn	− Souvenirs	− Alphabet Tiles	− Easiest Maze	− AtCoder Tour
357	− Sanitize Hands	− Uppercase and Lowercase	− Sierpinski carpet	− 88888888	− Reachability in Functional Graph	− Two Sequence Queries	− Stair-like Grid