Create 78. Subsets (#484)

Author: Chayandas07

78. Subsets

@@ -0,0 +1,25 @@
+class Solution {
+public:
+    vector<vector<int>> subsets(vector<int>& nums) {
+        vector<vector<int>> result;
+        vector<int> curr;
+
+        function<void(int)> explore = [&](int index) {
+            if (index == nums.size()) {
+                result.push_back(curr);
+                return;
+            }
+
+            // Include the current element
+            curr.push_back(nums[index]);
+            explore(index + 1);
+            curr.pop_back(); // Backtrack
+
+            // Exclude the current element
+            explore(index + 1);
+        };
+
+        explore(0);
+        return result;
+    }
+};