diff --git a/include/cmsketch.h b/include/cmsketch.h
new file mode 100644
index 0000000..0ee5458
--- /dev/null
+++ b/include/cmsketch.h
@@ -0,0 +1,31 @@
+#pragma once
+//#ifndef _cmsketch_H
+//#define _cmsketch_H
+#include "../init/params.h"
+#define cm_d 5
+
+#define rep(i,a,n) for(int i=a;i<=n;i++)
+using namespace std;
+class cmsketch
+{
+     private:
+        ssummary *ss;
+        struct node {int C,FP;} cm[cm_d][MAX_MEM+10];
+        BOBHash64 * bobhash;
+        int K,M2;
+     public:
+         cmsketch(int M2,int K);
+         void clear();
+         unsigned long long Hash(string ST);
+         void Insert(string x);
+         struct Node {string x; int y;} q[MAX_MEM+10];
+         static int cmp(Node i,Node j) {return i.y>j.y;}
+         void work();
+         pair<string ,int> Query(int k);
+        // ~cmsketch();
+};
+
+
+
+
+//#endif
\ No newline at end of file