#include <algorithm>
#include <iterator>
#include <vector>
class Solution {
public:
    /**
     * 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
     *
     * 
     * @param nums int整型vector 
     * @param target int整型 
     * @return int整型vector
     */
    vector<int> twoSum(vector<int>& nums, int target) {
        // write code here
          vector<int> ret;
        for(int i = 0;i < nums.size();i++)
        {
            auto it = find(nums.begin()+i, nums.end(), target-nums.at(i));
            if(it!=nums.end())
            {
                int index = distance(nums.begin(), it);
                ret.push_back(i+1);
                ret.push_back(index+1);
                break;
               
            }
        } 
        return ret;
    }
};

采用find函数解题,find查找vector