Create distribute-candies.cpp

Author: kamyu104

C++/distribute-candies.cpp

@@ -0,0 +1,13 @@
+// Time:  O(n)
+// Space: O(n)
+
+class Solution {
+public:
+    int distributeCandies(vector<int>& candies) {
+        unordered_set<int> lookup;
+        for (const auto& candy: candies) {
+            lookup.emplace(candy);
+        }
+        return min(lookup.size(), candies.size() / 2);
+    }
+};