题解 | #两数之和#

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 numbers int整型vector 
     * @param target int整型 
     * @return int整型vector
     */
    vector<int> twoSum(vector<int> &numbers, int target)
    {
        vector<int> res;
        unordered_map<int, int> mymap;
        for (int i = 0; i < numbers.size(); i++)
        {
            if (mymap.find(target - numbers[i]) != mymap.end())
            {
                res.push_back(mymap[target - numbers[i]]);
                res.push_back(i + 1);
                break;
            }
            mymap[numbers[i]] = i + 1;
        }
        return res;
    }
};