From 6522012065712fb0ece31bff9ff10b38a83b10e1 Mon Sep 17 00:00:00 2001
From: Michael Hunteman <michael@michaelted.xyz>
Date: Thu, 22 Sep 2022 10:14:04 -0500
Subject: Initial commit

---
 TwoSum.java | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 TwoSum.java

(limited to 'TwoSum.java')

diff --git a/TwoSum.java b/TwoSum.java
new file mode 100644
index 0000000..b285c60
--- /dev/null
+++ b/TwoSum.java
@@ -0,0 +1,20 @@
+import java.lang.*;
+import java.util.*;
+
+class TwoSum {
+	public static int[] twoSum(int[] nums, int target) {
+		HashMap<Integer, Integer> map = new HashMap<Integer, Integer>();
+		for (int i = 0; i < nums.length; i++) {
+			if (map.containsKey(target - nums[i]))
+				return new int[] {map.get(target - nums[i]), i};
+			map.put(nums[i], i);
+		}
+		return new int[] {-1, -1};
+	}
+
+	public static void main(String[] args) {
+		int[] nums = {2, 7, 11, 15};
+		int target = 9;
+		System.out.println(Arrays.toString(twoSum(nums, target)));
+	}
+}
-- 
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