More cpp snippets

my_snippets/cpp.snippets

@@ -66,3 +66,39 @@ vector<int> genRandom(int low, int high, int len){
   return arr;
 }
 endsnippet
+
+snippet incset "Use set" b
+#include <set>
+
+using std::set;
+endsnippet
+
+snippet incmap "Use map" b
+#include <map>
+
+using std::map;
+endsnippet
+
+snippet incqueue "Use queue" b
+#include <queue>
+
+using std::queue;
+endsnippet
+
+snippet incstr "Use string" b
+#include <string>
+
+using std::string;
+endsnippet
+
+snippet incvec "Use vector" b
+#include <vector>
+
+using std::vector;
+endsnippet
+
+snippet incstack "Use stack" b
+#include <stack>
+
+using std::stack;
+endsnippet