1 files changed, 23 insertions, 0 deletions
diff --git a/challenge-150/ulrich-rieke/cpp/ch-1.cpp b/challenge-150/ulrich-rieke/cpp/ch-1.cpp
new file mode 100644
index 0000000000..e2cb519390
--- /dev/null
+++ b/challenge-150/ulrich-rieke/cpp/ch-1.cpp
@@ -0,0 +1,23 @@
+#include <iostream>
+#include <vector>
+#include <string>
+
+int main( ) {
+  std::string firstnum ;
+  std::string secondnum ;
+  std::cout << "Enter a number string consisting of digits only!\n" ;
+  std::cin >> firstnum ;
+  std::cout << "Enter a second number string consisting of digits only!\n" ;
+  std::cin >> secondnum ;
+  while ( secondnum.length( ) != firstnum.length( ) ) {
+      std::cout << "second number string should be as long as the first one!\n" ;
+      std::cin >> secondnum ;
+  }
+  std::vector<std::string> fibonacciWords { firstnum , secondnum } ;
+  while ( fibonacciWords.back( ).length( ) < 51 ) {
+      fibonacciWords.push_back( fibonacciWords[ fibonacciWords.size( ) - 2 ] +
+        fibonacciWords.back( ) ) ;
+  }
+  std::cout << fibonacciWords.back( ).substr( 50 , 1 ) << std::endl ;
+  return 0 ;
+}