two sum solution

DaleStudy · Jan 2, 2025 · 0e1b8fa · 0e1b8fa
1 parent e2b6507
commit 0e1b8fa
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/two-sum/yoonthecoder.js b/two-sum/yoonthecoder.js
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+var twoSum = function (nums, target) {
+  const map = new Map();
+
+  for (let i = 0; i < nums.length; i++) {
+    const complement = target - nums[i];
+    if (map.has(complement)) {
+      return [map.get(complement), i];
+    }
+    map.set(nums[i], i);
+  }
+};
+
+// Time complexity: O(n)
+// Space complexity: O(n) - hash map storage