1 files changed, 35 insertions, 0 deletions
diff --git a/challenge-080/ulrich-rieke/cpp/ch-1.cpp b/challenge-080/ulrich-rieke/cpp/ch-1.cpp
new file mode 100644
index 0000000000..c4f51b0787
--- /dev/null
+++ b/challenge-080/ulrich-rieke/cpp/ch-1.cpp
@@ -0,0 +1,35 @@
+#include <vector>
+#include <iostream>
+#include <algorithm>
+
+std::vector<int> enterArray ( int limit ) {
+  std::vector<int> numbers ;
+  int num ;
+  while ( numbers.size( ) < limit ) {
+      std::cin >> num ;
+      numbers.push_back( num ) ;
+  }
+  return numbers ;
+}
+
+int main( ) {
+  std::cout << "How many numbers do you want to enter ?\n" ;
+  int num ;
+  std::cin >> num ;
+  std::cout << "Enter " << num << " numbers!\n" ;
+  std::vector<int> numbers = enterArray( num ) ;
+  std::vector<int> positives ;
+  for ( int i : numbers ) {
+      if ( i > 0 )
+    positives.push_back( i ) ;
+  }
+  std::sort( positives.begin( ) , positives.end( ) ) ;
+  int current = 1 ;
+  auto found = std::find( positives.begin( ) , positives.end( ) , current ) ;
+  while ( found != positives.end( ) ) {
+      current++ ;
+      found = std::find( positives.begin( ) , positives.end( ) , current ) ;
+  }
+  std::cout << current << std::endl ;
+  return 0 ;
+}