longest-consecutive-sequence time out

Author: JangAyeon

longest-consecutive-sequence/JangAyeon.js

@@ -0,0 +1,25 @@
+/**
+ * @param {number[]} nums
+ * @return {number}
+ */
+var longestConsecutive = function (nums) {
+  if (nums.length == 0) return 0;
+  let answer = 0;
+  let numsSet = new Set(nums);
+  const N = nums.length;
+
+  for (let i = 0; i < N; i++) {
+    let temp = nums[i];
+    let length = 1;
+    if (!numsSet.has(temp - 1)) {
+      while (numsSet.has(temp + 1)) {
+        length += 1;
+        temp += 1;
+      }
+      // console.log(length)
+      answer = Math.max(length, answer);
+    }
+  }
+
+  return answer;
+};