import java.util.*;


public class Solution {
    /**
     * 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整型一维数组 
     * @param target int整型 
     * @return int整型一维数组
     */
    public int[] twoSum (int[] numbers, int target) {
        // write code here
        int[] res = new int[2];
        HashMap<Integer, Integer> map = new HashMap<>();
        for(int i = 0; i < numbers.length; i ++) {
            int num = target - numbers[i];
            if (!map.containsKey(num)) {
                map.put(numbers[i], i);
            } else {
                res[0] = map.get(num) + 1;
                res[1] = i + 1;
            }
        }
        return res;
    }
}