A 2d grid map of m rows and n columns is initially filled with water. We may perfor…

Anagram Substring Search Given a text txt[0..n-1] and a pattern pat[0..m-1], write a function search(char pat[…

Surrounded Regions Given a 2D board containing ‘X’ and ‘O’, capture all regionssurroun…

欢迎fork and star：Nowcoder-Repository-github 139. Word Break 题目 Given a non-empty string s and a dictionary word…

  Design a search autocomplete system for a search engine. Users may input a sentence (at least one word …

  We have a grid of 1s and 0s; the 1s in a cell represent bricks.  A brick will not drop if and only…

题目描述 Given an array of integers and an integer k, find out whether there are two distinct indices i and j in t…

Given an input string, reverse the string word by word.Example: Input: "the sky is blue", Output: "blue is sky…

    Write a function that takes an unsigned integer and returns the number of ’1′ bits it has …

  A strobogrammatic number is a number that looks the same when rotated 180 degrees (looked at upside dow…

  A password is considered strong if below conditions are all met: It has at least 6 characters and at mo…

题目描述 Given an array of citations (each citation is a non-negative integer) of a researcher, write a function t…