code: Histogram output

labor01.cpp

@@ -18,7 +18,7 @@ input_data() {
     for (size_t i = 0; i < number_count; i++) {
         cin >> in.numbers[i];
     }
-    cerr << "Enter bin count: ";
+    cerr << "Enter bin_count: ";
     cin >> in.bin_count;
     sort(begin(in.numbers), end(in.numbers));
     in.numbers.erase(unique(begin(in.numbers), end(in.numbers)), end(in.numbers));
@@ -26,14 +26,11 @@ input_data() {
     return in;
 }
 
-int main() {
-    Input in = input_data();
-    const size_t SCREEN_WIDTH = 80;
-    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
-    vector<size_t> bins(in.bin_count);
-    double min = in.numbers[0];
-    double max = in.numbers[0];
-    for (double x : in.numbers) {
+void
+find_minmax(const vector<double>& numbers, double& min, double& max) {
+    min = numbers[0];
+    max = numbers[0];
+    for (double x : numbers) {
         if (x < min) {
             min = x;
         }
@@ -41,25 +38,40 @@ int main() {
             max = x;
         }
     }
-    size_t max_count = 0;
-    double bin_size = (max - min) / in.bin_count;
-    for (size_t i = 0; i < number_count; i++) {
+}
+
+vector<size_t> 
+make_histogram(const vector<double>& numbers, size_t& bin_count) {
+    double min = 0;
+    double max = 0;
+    find_minmax(numbers, min, max);
+    double bin_size = (max - min) / bin_count;
+    vector<size_t> bins(bin_count);
+    for (double number : numbers) {
         bool found = false;
-        for (size_t j = 0; (j < in.bin_count - 1) && !found; j++) {
+        for (size_t j = 0; (j < bin_count - 1) && !found; j++) {
             auto lo = min + j * bin_size;
             auto hi = min + (j + 1) * bin_size;
-            if ((lo <= in.numbers[i]) && (in.numbers[i] < hi)) {
+            if ((lo <= number) && (number < hi)) {
                 bins[j]++;
                 found = true;
             }
         }
         if (!found) {
-            bins[in.bin_count - 1]++;
+            bins[bin_count - 1]++;
         }
-        for (size_t i = 0; i < in.bin_count; i++) {
-            if (bins[i] > max_count) {
-                max_count = bins[i];
-            }
+    }
+    return bins;
+}
+
+void
+show_histogram_text(const vector<size_t>& bins, size_t& bin_count) {
+    const size_t SCREEN_WIDTH = 80;
+    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
+    size_t max_count = 0;
+    for (size_t i = 0; i < bin_count; i++) {
+        if (bins[i] > max_count) {
+            max_count = bins[i];
         }
     }
     double kof = double(MAX_ASTERISK) / max_count;
@@ -77,8 +89,16 @@ int main() {
         for (size_t i = 0; i < size_t(bin * kof); i++) {
             cout << "*";
         }
-
         cout << endl;
     }
-    return 0;
 }
+
+int main() {
+    auto in = input_data();
+    auto bins = make_histogram(in.numbers, in.bin_count);
+    show_histogram_text(bins, in.bin_count);
+
+}
+       
+       
+