41. First Missing Positive (java)

Author: bluesword12350

solution/0041.First Missing Positive/Solution.java

@@ -0,0 +1,11 @@
+class Solution {
+    public int firstMissingPositive(int[] nums) {
+        int re = 1;
+        Arrays.sort(nums);
+        for (int num : nums) {
+            if (num == re) re++;
+            if (num > re) return re;
+        }
+        return re;
+    }
+}