diff --git a/20816040327/Ex07_13.cpp b/20816040327/Ex07_13.cpp
deleted file mode 100644
index 1cc1494..0000000
--- a/20816040327/Ex07_13.cpp
+++ /dev/null
@@ -1,51 +0,0 @@
-#include <iostream>
-#include <array>
-using namespace std;
-
-int main()
-{
-    array <int,20> InputNum = {};     
-    int i,j= 0, number, flag=0;
-
-    //提示输入
-    cout << "please input your number:" << endl;
-    
-    //去重
-     for(i=0;i<20;i++)
-    {
-        cin >> number;
-        
-        for(int FinNum:InputNum)           
-        {                             
-            if(number==FinNum)
-            {
-                flag=1;
-                break;
-            }//相等则改变flag的值并退出循环
-        }
-        if(flag==0)                  
-        {
-           InputNum[j]=number;
-           j++;
-        }
-        
-        if(flag==0)                 
-            {
-                flag=0;
-            }
-
-        if(flag==1)                 
-            {
-                flag=0;
-            }
-
-    }
-    for(int FinNum:InputNum)            
-    {
-        if(FinNum>=10&&FinNum<=100)
-        cout << "your numbers are:" << endl;
-       cout << FinNum << endl;
-    }//输出
-
-    return 0;
-}