1 files changed, 55 insertions, 0 deletions
diff --git a/challenge-204/ulrich-rieke/cpp/ch-2.cpp b/challenge-204/ulrich-rieke/cpp/ch-2.cpp
new file mode 100644
index 0000000000..863b62caf2
--- /dev/null
+++ b/challenge-204/ulrich-rieke/cpp/ch-2.cpp
@@ -0,0 +1,55 @@
+#include <iostream>
+#include <string>
+#include <vector>
+#include <algorithm>
+
+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 integers, separated by a blank!\n" ;
+  std::cout << "Enter end to end!\n" ;
+  std::string line ;
+  std::getline( std::cin , line ) ;
+  std::vector<std::string> numberstrings ;
+  std::vector<std::vector<std::string>> allNumberstrings ;
+  std::vector<int> numbers ;
+  while ( line != "end" ) {
+      allNumberstrings.push_back( split ( line , " " ) ) ;
+      std::getline( std::cin , line ) ;
+  }
+  std::cout << "Enter the number of rows:\n" ;
+  int rows ;
+  std::cin >> rows ;
+  std::cout << "\nEnter the number of columns:\n" ;
+  int columns ;
+  std::cin >> columns ;
+  for ( const auto & vec : allNumberstrings ) {
+      for ( auto & s : vec )
+    numbers.push_back( std::stoi( s ) ) ;
+  }
+  if ( numbers.size( ) % ( rows * columns ) == 0 ) {
+      std::cout << '(' ;
+      for ( int i = 0 ; i < rows ; i++ ) {
+    std::cout << '(' ;
+    for ( int j = i * columns ; j < i * columns + columns ; j++ ) {
+        std::cout << *(numbers.begin( ) + j) << " " ;
+    }
+    std::cout << ") " ;
+      }
+      std::cout << ")\n" ;
+  }
+  else {
+      std::cout << 0 << std::endl ;
+  }
+  return 0 ;
+}