1 files changed, 39 insertions, 0 deletions
diff --git a/challenge-251/ulrich-rieke/cpp/ch-1.cpp b/challenge-251/ulrich-rieke/cpp/ch-1.cpp
new file mode 100755
index 0000000000..75c7efe2e4
--- /dev/null
+++ b/challenge-251/ulrich-rieke/cpp/ch-1.cpp
@@ -0,0 +1,39 @@
+#include <iostream>
+#include <list>
+#include <string>
+
+std::list<std::string> split( const std::string & startline ,
+      const std::string & sep ) {
+   std::list<std::string> separated ;
+   std::string::size_type start { 0 } ;
+   std::string::size_type pos ;
+   do {
+      pos = startline.find_first_of( sep , start ) ;
+      separated.push_back( startline.substr(start , pos - start )) ;
+      start = pos + 1 ;
+   } while ( pos != std::string::npos ) ;
+   return separated ;
+}
+
+int main( ) {
+   std::cout << "Enter some integers, separated by blanks!\n" ;
+   std::string line ;
+   std::getline( std::cin , line ) ;
+   std::list<std::string> numberlist { split( line , " " ) } ;
+   int sum = 0 ;
+   while ( numberlist.size( ) > 0 ) {
+      if ( numberlist.size( ) > 1 ) {
+	 std::string concatenated { numberlist.front( ).append( 
+	       numberlist.back( )) } ;
+	 sum += std::stoi( concatenated ) ;
+	 numberlist.pop_front( ) ;
+	 numberlist.pop_back( ) ;
+      }
+      else {
+	 sum += std::stoi( numberlist.front( ) ) ;
+	 numberlist.pop_front( ) ;
+      }
+   }
+   std::cout << sum << '\n' ;
+   return 0 ;
+}