- Added solutions by Ulrich Rieke.

1 files changed, 40 insertions, 0 deletions

diff --git a/challenge-137/ulrich-rieke/cpp/ch-2.cpp b/challenge-137/ulrich-rieke/cpp/ch-2.cpp
new file mode 100644
index 0000000000..8b254c8dcb
--- /dev/null
+++ b/challenge-137/ulrich-rieke/cpp/ch-2.cpp
@@ -0,0 +1,40 @@
+#include <iostream>
+#include <string>
+#include <cstdlib>
+#include <algorithm>
+
+bool isPalindrome( int d ) {
+  std::string numberstring( std::to_string( d ) ) ;
+  std::string reversed { numberstring } ;
+  std::reverse( reversed.begin( ) , reversed.end( ) ) ;
+  return reversed == numberstring ;
+}
+
+int main( int argc, char * argv[] ) {
+  int n = std::atoi( argv[ 1 ] ) ;
+  int output = 1 ;
+  while ( n < 10 || n > 1000 ) {
+      std::cout << "number should be between 10 and 1000!" << std::endl ;
+      std::cin >> n ;
+  }
+  int iterations = 0 ;
+  int number = n ;
+  while ( iterations < 500 ) {
+      std::string numberstring( std::to_string( n ) ) ;
+      std::reverse( numberstring.begin( ) , numberstring.end( ) ) ;
+      number += std::stoi( numberstring ) ;
+      if ( isPalindrome( number ) ) {
+    output = 0 ;
+    break ;
+      }
+      if ( number > 10000000 ) {
+    output = 1 ;
+    break ;
+      }
+      iterations++ ;
+  }
+  if ( iterations >= 500 )
+      output = 1 ;
+  std::cout << output << std::endl ;
+  return 0 ;
+}