code: исправление ошибок

histogram.cpp

@@ -5,6 +5,10 @@
 using namespace std;
 
 void find_minmax(const vector<double> &numbers, double &min, double &max){
+    if (numbers.size() == 0){
+        min = 0;
+        max = 0;
+    } else {
         min = numbers[0];
         max = numbers[0];
         for (double x : numbers) {
@@ -16,6 +20,7 @@ void find_minmax(const vector<double> &numbers, double &min, double &max){
             }
         }
     }
+}
 
 vector<size_t> make_histogram(const vector<double> &numbers, size_t bin_count){
     vector<size_t> bins ( bin_count );

histogram_internal.h

@@ -3,6 +3,6 @@
 
 #include <vector>
 
-void find_minmax(const std::vector<double> &numbers, double &min, double &max)
+void find_minmax(const std::vector<double> &numbers, double &min, double &max);
 
 #endif // HISTOGRAM_INTERNAL_H_INCLUDED