longest-consecutive-sequence solution

Author: hyunolike

longest-consecutive-sequence/hyunolike.java

@@ -0,0 +1,28 @@
+class Solution {
+    public int longestConsecutive(int[] nums) {
+        // 연속된 숫자 길이 파악
+        // 연속된 거 어떻게?
+        if(nums.length == 0 || nums == null) return 0;
+
+        int result = 0;
+
+        Arrays.sort(nums);
+
+        int maxLen = 1;
+        int len = 1;
+
+        for(int i = 1; i < nums.length; i++) {
+            // 중복 체크
+            if(nums[i] == nums[i-1]) {
+                continue;
+            }else if(nums[i] == nums[i-1] + 1) {
+                len++;
+                maxLen = Math.max(maxLen, len);
+            }else{
+                len = 1;
+            }
+        }
+
+        return maxLen;
+    }
+}