题解 | #两数之和#

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
        Map<Integer, Integer> yushuMap = new HashMap<Integer, Integer>();
        for (int i = 0; i < numbers.length; i++) {
            int yushu = target - numbers[i];
            if (yushuMap.containsKey(yushu)) {
                return new int[] {yushuMap.get(yushu) + 1, i + 1};
            } else {
                yushuMap.put(numbers[i], i);
            }
        }
        return new int[]{};
    }
}