Solutions

sheet1/B/main.cpp

@@ -0,0 +1,48 @@
+#include "file_io.h"
+#include "means.h"
+#include <iostream>
+#include <string>
+#include <vector>
+#include <algorithm>
+#include <cmath>
+using namespace std;
+
+int main()
+{
+    cout << "File einlesen." << endl;
+    
+    const string name("data_1.txt");              // name of input file
+    const string name2("out_1.txt");               // name of output file
+    vector<short> a;    //-2^15 to 2^15-1 fits the values from the file 
+    double  min, max, ar, ge, ha, std;
+
+
+    read_vector_from_file(name, a);
+    const unsigned size = a.size();
+
+    min = *min_element(a.begin(), a.end());
+    max = *max_element(a.begin(), a.end());
+
+   
+
+    means_vector(a, ar, ge, ha);
+
+    std = 0;
+    for(unsigned int i = 0; i < size; i++)
+    {
+        std += pow(a.at(i)-ar,2);
+    }
+    std = sqrt(std/size);
+
+    cout << "min: " << min << ", max: " << max << endl;
+    cout << "Arithmetic mean: " << ar
+         << ", geometric mean: " << ge
+         << ", harmonic mean: " << ha  << endl;
+    cout << "std: " << std << endl;
+
+    vector<double> results = {min, max, ar, ge, ha, std};
+    write_vector_to_file(name2, results);
+
+
+    return 0;
+}