added data structure conversion

Author: mrityunjay2003

public/data/cpp.json

@@ -60,5 +60,38 @@
         "author": "saminjay"
       }
     ]
+  },{
+    "categoryName":"Data Structure Conversion",
+    "snippets":[
+      {
+        "title":"Vector to Set",
+        "description":"Converts a vector to a set.",
+        "code":[
+          "#include <vector>",
+          "#include <set>",
+          "",
+          "std::set<int> vectorToSet(const std::vector<int>& vec) {",
+          "    return std::set<int>(vec.begin(), vec.end());",
+          "}"
+        ],
+        "tags":["cpp","vector","set","conversion","utility"],
+        "author":"mrityunjay2003"
+      },
+      {
+        "title":"Vector to Queue",
+        "description":"Converts a vector to a queue.",
+        "code":[
+          "#include <vector>",
+          "#include <queue>",
+          "#include<deque>",
+          "",
+          "std::queue<int> vectorToQueue(const std::vector<int>& v) {",
+          "    return std::queue<int>(std::deque<int>(v.begin(), v.end()));",
+          "}"
+        ],
+        "tags":["cpp","queue","vector","conversion","utility"],
+        "author":"mrityunjay2003"
+      }
+    ]
   }
 ]