Add Solution

Author: Akshat303

Problems/646-maximum-length-of-pair-chain.js

@@ -0,0 +1,19 @@
+/**
+ * @param {number[][]} pairs
+ * @return {number}
+ */
+var findLongestChain = function (pairs) {
+  pairs.sort((a, b) => a[1] - b[1]);
+
+  let cur = Number.MIN_SAFE_INTEGER,
+    ans = 0;
+
+  for (const [start, end] of pairs) {
+    if (cur < start) {
+      cur = end;
+      ans++;
+    }
+  }
+
+  return ans;
+};

README.md

@@ -37,3 +37,4 @@
 | 23   | [Merge k Sorted Lists](https://leetcode.com/problems/merge-k-sorted-lists/)                                                     | [JavaScript](./Problems/23-merge-k-sorted-lists.js)                          | Hard       |
 | 68   | [Text Justification](https://leetcode.com/problems/text-justification/)                                                         | [JavaScript](./Problems/68-text-justification.js)                            | Hard       |
 | 97   | [Interleaving String](https://leetcode.com/problems/interleaving-string/)                                                       | [JavaScript](./Problems/97-interleaving-string.js)                           | Medium     |
+| 646  | [Maximum Length of Pair Chain](https://leetcode.com/problems/maximum-length-of-pair-chain/)                                     | [JavaScript](./Problems/646-maximum-length-of-pair-chain.js)                 | Medium     |