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
HashMap<Integer,Integer> aa = new HashMap<Integer,Integer>();
for(int i=0;i<numbers.length;i++) {
Integer endex = aa.get(target-numbers[i]);
if (endex != null) return new int[]{endex+1,i+1};
aa.put(numbers[i],i);
}
return null;
}
}