Create Solution.js

Author: 07subhadip

solution/0200-0299/0219.Contains Duplicate II/Solution.js

@@ -0,0 +1,15 @@
+/**
+ * @param {number[]} nums
+ * @param {number} k
+ * @return {boolean}
+ */
+var containsNearbyDuplicate = function(nums, k) {
+    const d = new Map();
+    for (let i = 0; i < nums.length; ++i) {
+        if (d.has(nums[i]) && i - d.get(nums[i]) <= k) {
+            return true;
+        }
+        d.set(nums[i], i);
+    }
+    return false;
+};