摘要:
class Solution { public: string decodeString(string s) { int num = 0; string stradd = ""; stack<string> strstack; stack<int> intstack; for(int i=0;i < 阅读全文
摘要:
class Solution { public: int numIslands(vector<vector<char>>& grid) { int nr = grid.size(); if(nr == 0) return 0; int nc = grid[0].size(); int ans = 0 阅读全文
摘要:
class Solution { public: int lengthOfLongestSubstring(string s) { int maxlen = 0; for(int i=0;i < s.size();i++){ unordered_map<char,int> mp; mp[s[i]] 阅读全文