1 files changed, 52 insertions, 0 deletions
diff --git a/challenge-248/ulrich-rieke/cpp/ch-1.cpp b/challenge-248/ulrich-rieke/cpp/ch-1.cpp
new file mode 100755
index 0000000000..adda570afd
--- /dev/null
+++ b/challenge-248/ulrich-rieke/cpp/ch-1.cpp
@@ -0,0 +1,52 @@
+#include <iostream>
+#include <vector>
+#include <string>
+#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 a string and a letter from this string, separated by blank!\n" ;
+   std::string line ;
+   std::getline( std::cin , line ) ;
+   std::vector<std::string> parts ( split( line, " " ) ) ;
+   std::string searchstring { parts[0] } ;
+   std::string letter { parts[1] } ;
+   std::vector<int> letterpositions ;
+   for ( int i = 0 ; i < searchstring.length( ) ; i++ ) {
+      if ( searchstring.substr( i , 1 ) == letter ) 
+	 letterpositions.push_back( i ) ;
+   }
+   for ( int n : letterpositions ) 
+      std ::cout << n << " " ;
+   std::cout << '\n' ;
+   std::vector<int> result ;
+   for ( int i = 0 ; i < searchstring.length( ) ; i++ ) {
+      if ( searchstring.substr( i , 1 ) != letter ) {
+	 std::vector<int> differences ;
+	 for ( int p = 0 ; p < letterpositions.size( ) ; p++ ) 
+	    differences.push_back( abs( letterpositions[p] - i ) ) ;
+	 result.push_back( *std::min_element( differences.begin( ) , differences.end( ) )) ;
+      }
+      else {
+	 result.push_back( 0 ) ;
+      }
+   }
+   std::cout << "( " ;
+   for ( int i : result ) {
+      std::cout << i << " " ;
+   }
+   std::cout << " )\n" ;
+   return 0 ;
+}