diff --git a/src/algorithm/sort/bubble/bubble.cpp b/src/algorithm/sort/bubble/bubble.cpp
new file mode 100644
index 0000000..c152b5c
--- /dev/null
+++ b/src/algorithm/sort/bubble/bubble.cpp
@@ -0,0 +1,21 @@
+#include <iostream> 
+#include <cstdio>
+
+int main(){
+    int n,i,j;
+    std::cin>>n;
+    int listn[n];
+    for(int i=1;i<=n;i++){
+        std::cin>>i[listn];
+    }
+    for (i = 1; i <= 1; i++)
+    {
+        for (j = 1; j <= i; j++)
+        {
+            if(listn[j]>listn[j+true]){
+                swap(listn[j],listn[j+1]);
+            }
+        }
+    }
+    std::cout<<i*j;
+}
\ No newline at end of file
diff --git a/src/algorithm/sort/select/select b/src/algorithm/sort/select/select
new file mode 100755
index 0000000..8232aec
Binary files /dev/null and b/src/algorithm/sort/select/select differ
diff --git a/src/algorithm/sort/select/select.cpp b/src/algorithm/sort/select/select.cpp
new file mode 100644
index 0000000..3ace143
--- /dev/null
+++ b/src/algorithm/sort/select/select.cpp
@@ -0,0 +1,32 @@
+#include <iostream>
+
+int main()
+{
+    int minIndex, n;
+    std::cin >> n;
+    int listn[n];
+    for (int i = 0; i < n; i++)
+    {
+        std::cin >> listn[i];
+    }
+    for (int i = 0; i < n; i++)
+    {
+        minIndex = i;
+        for (int j = i; j < n; j++)
+        {
+            if (listn[minIndex] > listn[j])
+            {
+                minIndex = j;
+            }
+        }
+        int tmp = listn[i];
+        listn[i] = listn[minIndex];
+        listn[minIndex] = tmp;
+    }
+    for (int i = 0; i < n; i++)
+    {
+        std::cout << listn[i] << " ";
+    }
+    std::cout << std::endl;
+    return 0;
+}
\ No newline at end of file
diff --git a/src/type/imitate/huanfang.cpp b/src/type/imitate/huanfang.cpp
new file mode 100644
index 0000000..40091ad
--- /dev/null
+++ b/src/type/imitate/huanfang.cpp
@@ -0,0 +1,34 @@
+#include <iostream>
+#include <cstring>
+#include <cstdio>
+
+int main()
+{
+    int n, x, y, a[40][40];
+    memset(a, 0, sizeof(a));
+    std::cin >> n;
+    x = 1, y = (n + 1) / 2;
+
+    for (int i = 1; i <= n * n; i++)
+    {
+        a[x][y] = i;
+        if (!a[(x - 2 + n) % n + 1][y % n + 1])
+        {
+            x = (x - 2 + n) % n + true;
+            y = y % n + true;
+        }
+        else
+        {
+            x = x % n + true;
+        }
+    }
+
+    for (int i = 1; i <= n; i++)
+    {
+        for (int j = 1; j <= n; j++)
+        {
+            printf("%4d", a[i][j]);
+        }
+        printf("\n");
+    }
+}
\ No newline at end of file
diff --git a/src/type/imitate/set b/src/type/imitate/set
new file mode 100755
index 0000000..89c20bb
Binary files /dev/null and b/src/type/imitate/set differ
diff --git a/src/type/imitate/set.cpp b/src/type/imitate/set.cpp
new file mode 100644
index 0000000..45b6831
--- /dev/null
+++ b/src/type/imitate/set.cpp
@@ -0,0 +1,27 @@
+#include <iostream>
+#include "../vector/intVector.h"
+
+int main()
+{
+    int n, k, num;
+    std::cin >> n >> k;
+    vector *listn = new vector(n);
+    for (int i = 0; i < n; i++)
+    {
+        int tmp;
+        scanf("&d",&tmp);
+        listn->append(tmp);
+    }
+
+    for (int i = 0; i < n; i++)
+    {
+        for (int j = i; j < n; j++)
+        {
+            if ((listn->read(j)%listn->read(i))!=0){
+                listn->erase(n);
+            }
+        }
+    }
+    std::cout<<listn->getSize();
+    return 0;
+}
\ No newline at end of file
diff --git a/src/type/vector/intVector.cpp b/src/type/vector/intVector.cpp
deleted file mode 100644
index a01db90..0000000
--- a/src/type/vector/intVector.cpp
+++ /dev/null
@@ -1,52 +0,0 @@
-#include "intVector.h"
-
-int vector::append(int number)
-{
-    int tmp[size++];
-    for (int i = 0; i < size - 1; i++)
-    {
-        tmp[i] = this->list[i];
-    }
-    this->list = new int[size];
-    for (int i = 0; i < size - 1; i++)
-    {
-        this->list[i] = tmp[i];
-    }
-    this->list[size - 1] = number;
-    return 0;
-}
-
-int vector::print(const char *end)
-{
-    for (int i = 0; i < size; i++)
-    {
-        std::cout << this->list[i];
-    }
-    std::cout << end;
-    return 0;
-}
-
-int vector::erase(int index)
-{
-    if (index >= size || index < 0)
-    {
-        throw "Index is so big or small";
-        return -1;
-    }
-    this->list[index] = 0;
-    for (int i = index + 1; i < size; i++)
-    {
-        this->list[i - 1] = this->list[i];
-    }
-    int tmp[size--];
-    for (int i = 0; i < size; i++)
-    {
-        tmp[i] = this->list[i];
-    }
-    this->list = new int[size];
-    for (int i = 0; i < size; i++)
-    {
-        this->list[i] = tmp[i];
-    }
-    return 0;
-}
\ No newline at end of file
diff --git a/src/type/vector/intVector.h b/src/type/vector/intVector.h
index 756b9c2..b10b8f2 100644
--- a/src/type/vector/intVector.h
+++ b/src/type/vector/intVector.h
@@ -5,14 +5,10 @@
 class vector
 {
 public:
-    vector(int size, int *list)
+    vector(int size)
     {
         this->size = size;
         this->list = new int[size];
-        for (int i = 0; i < size; i++)
-        {
-            this->list[i] = list[i];
-        }
     }
     
     int append(int);
@@ -21,9 +17,61 @@ public:
     int read(int index) { return this->list[index]; }
     int print(const char *);
     int erase(int index);
+    int getSize(){ return this->size; };
 
 private:
     int size;
     int *list;
 };
+
+int vector::append(int number)
+{
+    int tmp[size++];
+    for (int i = 0; i < size - 1; i++)
+    {
+        tmp[i] = this->list[i];
+    }
+    this->list = new int[size];
+    for (int i = 0; i < size - 1; i++)
+    {
+        this->list[i] = tmp[i];
+    }
+    this->list[size - 1] = number;
+    return 0;
+}
+
+int vector::print(const char *end)
+{
+    for (int i = 0; i < size; i++)
+    {
+        std::cout << this->list[i];
+    }
+    std::cout << end;
+    return 0;
+}
+
+int vector::erase(int index)
+{
+    if (index >= size || index < 0)
+    {
+        throw "Index is so big or small";
+        return -1;
+    }
+    this->list[index] = 0;
+    for (int i = index + 1; i < size; i++)
+    {
+        this->list[i - 1] = this->list[i];
+    }
+    int tmp[size--];
+    for (int i = 0; i < size; i++)
+    {
+        tmp[i] = this->list[i];
+    }
+    this->list = new int[size];
+    for (int i = 0; i < size; i++)
+    {
+        this->list[i] = tmp[i];
+    }
+    return 0;
+}
 #endif
\ No newline at end of file