题解 | #两数之和#

import java.util.*;
public class Solution {
    /**
     * 
     * @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[] a = new int[2];
        Map<Integer,Integer> map = new HashMap<>();
        for(int i=0;i<numbers.length;i++){
            if(map.containsKey(target-numbers[i])){
                a[0] = map.get(target-numbers[i]);
                a[1] = i+1;
            }
            map.put(numbers[i],i+1);
        }
        return a;
    }
}