題目 Given a string, find the length of the longest substring without repe...

題目 A positive integer is magical if it is divisible by either A or B. Re...

題目 You are given an array x of n positive numbers. You start at point (0...

@toc 題目 Say you have an array for which the i-th element is the price of...

題目 Given a string containing just the characters '(' and ')', find the l...

題目 Given two arrays of length m and n with digits 0-9 representing two n...

題目 Given an input string ( s ) and a pattern ( p ), implement regular ex...

題目 A message containing letters from A-Z is being encoded to numbers usi...

題目 In a given integer array A, we must move every element of A to either...