LeetCode/com/zerroi/leetcode/Three19/TwoSum.java

package com.zerroi.leetcode.Three19;

import java.util.HashMap;
import java.util.Map;

public class TwoSum {
    public static void main(String[] args) {

    }
}

class SolutionThird {
    public int[] twoSum(int[] nums, int target) {
        Map<Integer, Integer> map = new HashMap<>();
        for (int i = 0; i < nums.length; i++) {
            if(map.containsKey(target - nums[i])){
                return new int[]{i, map.get(target - nums[i])};
            }
            map.put(nums[i], i);
        }
        return new int[0];
    }
}