diff --git a/201816040114/Ex07_13.cpp b/201816040114/Ex07_13.cpp
new file mode 100644
index 0000000..6ae2a07
--- /dev/null
+++ b/201816040114/Ex07_13.cpp
@@ -0,0 +1,30 @@
+#include <iostream>
+#include <array>
+using std::cout;
+using std::cin;
+
+
+using namespace std;
+
+int main()
+{
+    array<int,20>date;//定义数组date
+    for(int i=0;i<20;i++)
+    {
+        cin>>date[i];//输入数据
+    }
+    for(int i=0;i<20;i++)
+    {
+        for(int j=i+1;j<20;j++)
+        {
+            if(date[i]==date[j])
+                date[j]=0;//将重复数据定义为0
+        }
+    }
+    for(int i=0;i<20;i++)
+    {
+        if(date[i]!=0&&date[i]>=10&&date[i]<=100)
+            cout<<date[i]<<" ";
+    }
+    return 0;
+}