摘要:
https://leetcode.com/problems/ransom-note/ public class Solution { public boolean canConstruct(String ransomNote, String magazine) { char[] chRan = ransomNote.toCharArray(); char... 阅读全文
摘要:
https://leetcode.com/problems/linked-list-random-node/ // Using Reservoir sampling algorithm // https://discuss.leetcode.com/topic/53812/using-reservoir-sampling-o-1-space-o-n-time-complexity-c/2 /... 阅读全文