Create build-an-array-with-stack-operations.cpp

Author: kamyu104

C++/build-an-array-with-stack-operations.cpp

@@ -0,0 +1,19 @@
+// Time:  O(n)
+// Space: O(1)
+
+class Solution {
+public:
+    vector<string> buildArray(vector<int>& target, int n) {
+        vector<string> result;
+        int curr = 1;
+        for (const auto& t : target) {
+            for (int i = curr; i < t; ++i) {
+                result.emplace_back("Push");
+                result.emplace_back("Pop");
+            }
+            result.emplace_back("Push");
+            curr = t + 1;
+        }
+        return result;
+    }
+};