delete pics to save space

1.1030.cpp

@@ -0,0 +1,19 @@
+#include<iostream>
+using namespace std;
+void beford(const string &in,const string &after)
+{
+    if(in.size()>0)
+	{
+        char ch=after.back();
+        cout<<ch;
+        int k=in.find(ch);
+        beford(in.substr(0,k),after.substr(0,k));
+        beford(in.substr(k+1),after.substr(k,in.size()-k-1));
+    }
+}
+int main()
+{
+    string a,b; cin>>a>>b;
+    beford(a,b); cout<<endl;
+    return 0;
+}