Create maximum-erasure-value.cpp

Author: kamyu104

C++/maximum-erasure-value.cpp

@@ -0,0 +1,20 @@
+// Time:  O(n)
+// Space: O(n)
+
+class Solution {
+public:
+    int maximumUniqueSubarray(vector<int>& nums) {
+        unordered_map<int, int> lookup;
+        int prefix[size(nums) + 1];
+        int result = 0, left = 0;
+        for (int right = 0; right < size(nums); ++right) {
+            prefix[right + 1] = prefix[right] + nums[right];
+            if (lookup.count(nums[right])) {
+                left = max(left, lookup[nums[right]] + 1);
+            }
+            lookup[nums[right]] = right;
+            result = max(result, prefix[right + 1] - prefix[left]);
+        }
+        return result;
+    }
+};