标签:表输入 bat turn NPU cto not nat get att
Given an array of strings, group anagrams together
Note:
Note:
All inputs will be in lowercase.
The order of your output does not matter.
Example:
Example:
Input: ["eat", "tea", "tan", "ate", "nat", "bat"],
Output:
[
["ate","eat","tea"],
["nat","tan"],
["bat"]
]
class Solution {
public:
vector<vector<string>> groupAnagrams(vector<string>& strs) {
vector<vector<string>> res;
unordered_map<string, vector<string>> m;
for (string str : strs) {
string t = str;
sort(t.begin(), t.end());
m[t].push_back(str); //push_back
}
for(auto a: m) {
res.push_back(a.second); //取字典的value值
}
return res;
}
};
a.second()
每个在一个组里的列表对应字母表顺序重新排列后都是一样的,所以用重排后的字母作为key, 最后将所有value列表输入到结果中去即可。
标签:表输入 bat turn NPU cto not nat get att
原文地址:https://www.cnblogs.com/forPrometheus-jun/p/11226576.html