1 files changed, 47 insertions, 0 deletions
diff --git a/challenge-245/ulrich-rieke/cpp/ch-1.cpp b/challenge-245/ulrich-rieke/cpp/ch-1.cpp
new file mode 100755
index 0000000000..fb9584efcf
--- /dev/null
+++ b/challenge-245/ulrich-rieke/cpp/ch-1.cpp
@@ -0,0 +1,47 @@
+#include <vector>
+#include <iostream>
+#include <string>
+#include <algorithm>
+#include <utility>
+
+std::vector<std::string> split( const std::string & startline ,
+      const std::string & sep ) {
+   std::vector<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 computer languages, separated by blanks!\n" ;
+   std::string line ;
+   std::getline( std::cin , line ) ;
+   std::vector<std::string> languages( split( line , " " ) ) ;
+   std::cout << "Enter some popularity indices, separated by blanks!\n" ;
+   std::getline( std::cin , line ) ;
+   std::vector<std::string> pops ( split( line , " " ) ) ;
+   std::vector<int> popularities ;
+   for ( auto s : pops ) 
+      popularities.push_back( std::stoi( s ) ) ;
+   int len = languages.size( ) ;
+   std::vector<std::pair<int , std::string>> pop_pairs ;
+   for ( int i = 0 ; i < len ; i++ ) {
+      pop_pairs.push_back( std::make_pair( popularities[ i ] , languages[ i ] ) ) ;
+   }
+   std::sort( pop_pairs.begin( ) , pop_pairs.end( ) , []( const auto & p1 ,
+	    const auto & p2 ) { return p1.first < p2.first ; } ) ;
+   std::cout << "(" ;
+   for ( const auto & p : pop_pairs ) {
+      std::cout << p.second ;
+      if ( p != pop_pairs.back( ) ) {
+	 std::cout << "," ;
+      }
+   }
+   std::cout << ")\n" ;
+   return 0 ;
+}