1 files changed, 48 insertions, 0 deletions
diff --git a/challenge-269/ulrich-rieke/cpp/ch-2.cpp b/challenge-269/ulrich-rieke/cpp/ch-2.cpp
new file mode 100755
index 0000000000..f7fcee5fc2
--- /dev/null
+++ b/challenge-269/ulrich-rieke/cpp/ch-2.cpp
@@ -0,0 +1,48 @@
+#include <iostream>
+#include <string>
+#include <ranges>
+#include <string_view>
+#include <algorithm>
+#include <list>
+#include <iterator>
+#include <vector>
+
+int main( ) {
+   std::cout << "Enter some distinct integers, separated by blanks!\n" ;
+   std::string line ;
+   std::getline( std::cin , line ) ;
+   std::vector<std::string> numberstrings ;
+   char delimiter = ' ' ;
+   auto split = line | std::views::split( delimiter ) ;
+   for ( const auto & subrange : split ) {
+      std::string numstring( &*subrange.begin( ) , std::ranges::distance( 
+	       subrange ) ) ;
+      numberstrings.push_back( numstring ) ;
+   }
+   std::list<int> numbers , arr1 , arr2 ;
+   for ( auto s : numberstrings ) 
+      numbers.push_back( std::stoi( s ) ) ;
+   int first = numbers.front( ) ;
+   arr1.push_back( first ) ;
+   numbers.pop_front( ) ;
+   first = numbers.front( ) ;
+   arr2.push_back( first ) ;
+   numbers.pop_front( ) ;
+   while ( ! numbers.empty( ) ) {
+      first = numbers.front( ) ;
+      if ( arr1.back( ) > arr2.back( ) ) {
+	 arr1.push_back( first ) ;
+      }
+      else {
+	 arr2.push_back( first ) ;
+      }
+      numbers.pop_front( ) ;
+   }
+   for ( int i : arr2 )
+      arr1.push_back( i ) ;
+   std::cout << "( " ;
+   std::copy( arr1.begin( ) , arr1.end( ) , std::ostream_iterator<int>(
+	    std::cout , " " )) ;
+   std::cout << ")\n" ;
+   return 0 ;
+}