题解 | #字符串的排列#
字符串的排列
http://www.nowcoder.com/practice/fe6b651b66ae47d7acce78ffdd9a96c7
class Solution {
public:
vector<string> Permutation(string str) {
vector<string> res;
do
{
res.push_back(str);
} while (next_permutation(str.begin(), str.end()));
return res;
}
};next_permutation自动去重
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