James Pan

原题网址：https://leetcode.com/problems/h-index/ Given an array of citations (each citation is a non-negative integer) of a researcher, write a function to compute the researcher's h-index. Accordi

原题网址：https://leetcode.com/problems/substring-with-concatenation-of-all-words/ You are given a string, s, and a list of words, words, that are all of the same length. Find all starting indices of

原题网址：https://leetcode.com/problems/design-hit-counter/ Design a hit counter which counts the number of hits received in the past 5 minutes. Each function accepts a timestamp parameter (in seco

原题网址：https://leetcode.com/problems/ransom-note/ Given an arbitrary ransom note string and another string containing letters from all the magazines, write a function that will return true if the r