摘要：
代码： 1 class Solution { 2 public: 3 int atoi(string str) { 4 int num = 0; 5 int sign = 1; 6 const int n = str.size(); 7 ... 阅读全文
摘要：
代码： 1 class Solution { 2 public: 3 void nextPermutation(vector &num) { 4 5 const auto first = num.begin(); 6 const auto last = nu... 阅读全文