ac 2540

Author: CollieIsCute

2540.cpp

@@ -0,0 +1,14 @@
+class Solution {
+public:
+    int getCommon(vector<int>& nums1, vector<int>& nums2) {
+        for (auto i = 0, j = 0; i < nums1.size() && j < nums2.size();) {
+            if (nums1[i] == nums2[j])
+                return nums1[i];
+            if (nums1[i] > nums2[j])
+                ++j;
+            else
+                ++i;
+        }
+        return -1;
+    }
+};