2001. 可互换矩形的组数
Medium | Array, Hash Table, Math, Counting, Number Theory
Posts
2002. 两个回文子序列长度的最大乘积
Medium | String, Dynamic Programming, Backtracking, Bit Manipulation, Bitmask
2003. 每个子树内缺失的最小遗传值
Hard | Array, Dynamic Programming, Tree, Depth-First Search, Union-Find
2007. 从双倍数组中还原原始数组
Medium | Array, Hash Table, Greedy, Sorting
2008. 出租车的最大盈利
Medium | Array, Hash Table, Binary Search, Dynamic Programming, Sorting
2009. 使数组连续的最少操作数
Hard | Array, Hash Table, Binary Search, Sliding Window
2011. 执行操作后的变量最终值
Easy | Array, String, Simulation
2012. 数组中的美丽值之和
Medium | Array
2013. 检测正方形
Medium | Array, Hash Table, Design, Counting, Data Stream
2016. 递增元素间的最大差值
Easy | Array