- Added solutions by Ulrich Rieke.

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 ;

+}

+