1 files changed, 25 insertions, 0 deletions
diff --git a/challenge-282/ulrich-rieke/cpp/ch-1.cpp b/challenge-282/ulrich-rieke/cpp/ch-1.cpp
new file mode 100755
index 0000000000..aceb6a89fa
--- /dev/null
+++ b/challenge-282/ulrich-rieke/cpp/ch-1.cpp
@@ -0,0 +1,25 @@
+#include <iostream>
+#include <vector>
+#include <algorithm>
+#include <string>
+
+int main( ) {
+   std::cout << "Enter a long string consisting of digits only!\n" ;
+   std::string number ;
+   std::cin >> number ;
+   std::vector<std::string> triplets , selected ;
+   int pos = 0 ;
+   while ( pos < number.length( ) - 2 ) {
+      triplets.push_back( number.substr( pos , 3 ) ) ;
+      pos++ ;
+   }
+   std::copy_if( triplets.begin( ) , triplets.end( ) ,
+	 std::back_inserter( selected ) , []( const auto & s ) {
+	 return s.at( 0 ) == s.at( 1 ) && s.at( 1 ) == s.at( 2 ) ; } ) ;
+   if ( selected.size( ) == 0 ) 
+      std::cout << -1 << '\n' ;
+   else
+      std::cout << selected[0].substr( 0 , 1 ) << '\n' ;
+   return 0 ;
+}
+