redis自己构建的一种名为简单动态字符串(simple dynamic string,SDS)的抽象类型。

String - 67. Add Binary
Given two binary strings, return their sum (also a binary string).

Math - 50. Pow(x, n)
Implement pow(x, n), which calculates x raised to the power n (xn).

String - 44. Wildcard Matching
Given an input string (s) and a pattern (p), implement wildcard pattern matching with support for '?' and '*'.

DFS&BFS - 37. Sudoku Solver
Write a program to solve a Sudoku puzzle by filling the empty cells.

Array - 36. Valid Sudoku
Determine if a 9x9 Sudoku board is valid.

Array - 57. Insert Interval
Given a set of non-overlapping intervals, insert a new interval into the intervals (merge if necessary).