[ABC213H] Stroll

[ABC214A] New Generation ABC

[ABC214B] How many?

[ABC214C] Distribution

[ABC214D] Sum of Maximum Weights

[ABC214E] Packing Under Range Regulations

贪心 · 排序

[ABC214F] Substrings

动态规划 DP

[ABC214G] Three Permutations

[ABC214H] Collecting

[ABC215A] Your First Judge

[ABC215B] log2(N)

[ABC215C] One More aab aba baa

[ABC215D] Coprime 2

素数判断,质数,筛法

[ABC215E] Chain Contestant

[ABC215F] Dist Max 2

[ABC215G] Colorful Candies 2

[ABC215H] Cabbage Master

[ABC216A] Signed Difficulty

[ABC216B] Same Name

[ABC216C] Many Balls

[ABC216D] Pair of Balls

[ABC216E] Amusement Park

[ABC216F] Max Sum Counting

动态规划 DP

[ABC216G] 01Sequence

贪心 · 树状数组 · 差分约束

[ABC216H] Random Robots

[ABC217A] Lexicographic Order

[ABC217B] AtCoder Quiz

[ABC217C] Inverse of Permutation

[ABC217D] Cutting Woods

[ABC217E] Sorting Queries

[ABC217F] Make Pair

动态规划 DP · 区间 DP · 组合数学

[ABC217G] Groups

动态规划 DP · 组合数学

[ABC217H] Snuketoon

动态规划 DP · 斜率维护技巧 slope trick

[ABC218A] Weather Forecast

[ABC218B] qwerty

[ABC218C] Shapes

[ABC218D] Rectangles

[ABC218E] Destruction

[ABC218F] Blocked Roads

[ABC218G] Game on Tree 2

[ABC218H] Red and Blue Lamps

[ABC219A] AtCoder Quiz 2

[ABC219B] Maritozzo

[ABC219C] Neo-lexicographic Ordering

[ABC219D] Strange Lunchbox

[ABC219E] Moat

[ABC219F] Cleaning Robot

[ABC219G] Propagation

根号分治

[ABC219H] Candles

动态规划 DP · 区间 DP

[ABC220A] Find Multiple