delete pics to save space

1.1059.cpp

@@ -0,0 +1,15 @@
+#include<cstdio>
+using namespace std;
+int n,a[1001],res,t;
+int main()
+{
+    scanf("%d",&n);
+    for(int i=0;i<n;i++)
+    {
+        scanf("%d",&t);
+        if(a[t]==0) a[t]=t,res++;
+    }
+    printf("%d\n",res);
+    for(int i=0;i<1001;i++) if(a[i]!=0) printf("%d ",a[i]);
+    return 0;
+}