Create 128-longest-consecutive-sequence.js

Author: everthis

128-longest-consecutive-sequence.js

@@ -0,0 +1,22 @@
+/**
+ * @param {number[]} nums
+ * @return {number}
+ */
+const longestConsecutive = function(nums) {
+  if(nums.length === 0) return 0
+  nums.sort((a, b) => a - b)
+  let max = 1
+  let cur = 1
+  for(let i = 1; i < nums.length; i++) {
+    if(nums[i] - nums[i-1] === 1) {
+       cur += 1
+       max = Math.max(max, cur)
+    } else if(nums[i] - nums[i-1] === 0) {
+              
+    } else {
+      cur = 1
+    }
+  }
+  
+  return max
+};