super30admin · sundeep4sandy · Apr 20, 2026
diff --git a/1TwoSum.js b/1TwoSum.js
@@ -0,0 +1,20 @@
+/**
+ * @param {number[]} nums
+ * @param {number} target
+ * @return {number[]}
+ */
+//Time: O(n)
+//Space: O(n)
+var twoSum = function (nums, target) {
+  const lookup = new Map();
+
+  for (let i = 0; i < nums.length; i++) {
+    const difference = target - nums[i];
+
+    if (lookup.has(difference)) {
+      return [lookup.get(difference), i];
+    }
+
+    lookup.set(nums[i], i);
+  }
+};
diff --git a/Problem1.cpp b/Problem1.cpp
diff --git a/Problem1.java b/Problem1.java
diff --git a/Problem2.cpp b/Problem2.cpp
diff --git a/Problem2.java b/Problem2.java
diff --git a/README.md b/README.md