LeetCode 1081. Smallest Subsequence of Distinct Characters 2019-12-03 13:44 −原题链接在这里:https://leetcode.com/problems/smallest-subsequence-of-distinct-characters/ 题目: Return the lexicographically smallest subsequence of text&n...
一个网站域名,如"discuss.leetcode.com",包含了多个子域名。作为顶级域名,常用的有"com",下一级则有"leetcode.com",最低的一级为"discuss.leetcode.com"。当我们访问域名"discuss.leetcode.com"时,也同时访问了其父域名"leetcode.com"以及顶级域名 "com"。 给定一个带访问次数和域名的组合,要求分别计算每个...
【leetcode】Count Primes Description:Count the number of prime numbers less than a non-negative number, n. 1 class Solution { 2 public: 3 int countPrimes(int n) { 4 vector<bool> num(n-1,true); 5 num[0]=false; 6 int res=0; 7 int limit=sqrt(n); 8 9 for(int i=2;i<=...
题解: View Code 分类: leetcode 好文要顶 关注我 收藏该文 微信分享 cha1992 粉丝- 2 关注- 1 +加关注 0 0 升级成为会员 « 上一篇: [leetcode] Edit Distance » 下一篇: [leetcode] Distinct Subsequences posted on 2015-01-20 10:41 cha1992 阅读(134) 评论(0) 编辑 收藏 举报 刷...
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