финальная версия

cs-lab34.cpp

@@ -1,65 +1,29 @@
+#include "text.h"
+#include "histogram.h"
+#include "svg.h"
+#include "histogram_internal.h"
 #include <iostream>
 #include <vector>
 using namespace std;
-
-int main()
-{
-    size_t num, po, i;
-    double max, min, m = 0, le, ri;
-    cout << "num=";
-    cin >> num;
-    cout << "po=";
-    cin >> po;
-    vector <double> mas(num);
-    vector<int> ch(po);
-    for (i = 0; i < num; i++)
-    {
-        cout << "mas [" << i << "]=";
-        cin >> mas[i];
-    }
-    cout << endl;
-    max = mas[0];
-    min = mas[0];
-    for (i = 1; i < num; i++)
+struct Input {
+    vector<double> numbers;
+    size_t bin_count{};
+};
+Input input_data()
 {
-        if (max < mas[i])
-            max = mas[i];
-        if (min > mas[i])
-            min = mas[i];
+    size_t number_count;
+    cin >> number_count;
+    Input in;
+    in.numbers.resize(number_count);
+    for (size_t i = 0; i < number_count; i++) {
+        cin >> in.numbers[i];
     }
-    le = min;
-    ri = le + (max - min) / po;
-    int kol = 0;
-    while (kol < po - 1)
-    {
-        for (i = 0; i < num; i++)
-        {
-            if (le <= mas[i] && ri > mas[i])
-                ch[kol]++;
+    cin >> in.bin_count;
+    return in;
 }
-        if (ch[kol] > m)
-            m = ch[kol];
-        kol++;
-        le = ri;
-        ri = le + (max - min) / po;
-    }
-    for (i = 0; i < num; i++)
-    {
-        if ((ri <= mas[i] && le < mas[i]) || (le <= mas[i] && ri > mas[i]))
-            ch[kol] ++;
-        if (ch[kol] > m)
-            m = ch[kol];
-    }
-    for (i = 0; i < po; i++)
+int main()
 {
-        int d = m - ch[i];
-        if (d != 0)
-            for (int j = 0; j < d; j++)
-                cout << " ";
-        for (size_t j = 0; j < ch[i]; j++)
-            cout << "*";
-        cout << "|" << ch[i];
-        cout << endl;
-    }
-    return 0;
+    Input in = input_data();
+    auto ch = make_histogram(in.numbers, in.bin_count);
+    show_histogram_svg(ch);
 }

histogram.cpp

@@ -0,0 +1,43 @@
+#include "histogram.h"
+#include "histogram_internal.h"
+#include <iostream>
+#include <vector>
+using namespace std;
+
+void find_minmax(const vector <double>& mas, double& min, double& max)
+{
+    for (size_t i = 0; i < mas.size(); i++)
+    {
+        if (max < mas[i])
+            max = mas[i];
+        if (min > mas[i])
+            min = mas[i];
+    }
+}
+vector<int> make_histogram(const vector<double>& mas, size_t bin_count)
+{
+    size_t i;
+    vector<int> ch(bin_count);
+    double max = mas[0], min = mas[0], le, ri;
+    find_minmax(mas, min, max);
+    le = min;
+    ri = le + (max - min) / bin_count;
+    int kol = 0;
+    while (kol < bin_count - 1)
+    {
+        for (i = 0; i < mas.size(); i++)
+        {
+            if (le <= mas[i] && ri > mas[i])
+                ch[kol]++;
+        }
+        kol++;
+        le = ri;
+        ri = le + (max - min) / bin_count;
+    }
+    for (i = 0; i < mas.size(); i++)
+    {
+        if ((ri <= mas[i] && le < mas[i]) || (le <= mas[i] && ri > mas[i]))
+            ch[kol] ++;
+    }
+    return ch;
+}

histogram.h

@@ -0,0 +1,7 @@
+#ifndef histogram
+#define histogram
+#include <vector>
+
+std::vector<int> make_histogram(const std::vector<double>& mas, size_t bin_count);
+
+#endif //histogram

histogram_internal.h

@@ -0,0 +1,7 @@
+#ifndef histogram_internal
+#define histogram_internal
+#include <vector>
+
+void find_minmax(const std::vector <double>& mas, double& min, double& max);
+
+#endif //histogram_internal

svg.cpp

@@ -0,0 +1,84 @@
+#include "svg.h"
+#include <iostream>
+#include <vector>
+#include <string>
+#include <math.h>
+using namespace std;
+
+void
+svg_begin(double width, double height) {
+    cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
+    cout << "<svg ";
+    cout << "width='" << width << "' ";
+    cout << "height='" << height << "' ";
+    cout << "viewBox='0 0 " << width << " " << height << "' ";
+    cout << "xmlns='http://www.w3.org/2000/svg'>\n";
+}
+
+void
+svg_end() {
+    cout << "</svg>\n";
+}
+
+void
+svg_text(double left, double baseline, string text) {
+    cout << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>";
+
+}
+
+void svg_rect(double x, double y, double width, double height, string stroke, string fill) {
+    cout << "<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height << "' stroke = '" << stroke << "' fill = '" << fill << "' />";
+}
+
+void pers(int bin, int sum, int& x) {
+    x = round(bin * 100 / sum);
+}
+
+void
+show_histogram_svg(const vector<int>& bins) {
+
+    const auto IMAGE_WIDTH = 400;
+    const auto IMAGE_HEIGHT = 300;
+    const auto TEXT_LEFT = 20;
+    const auto TEXT_BASELINE = 20;
+    const auto TEXT_WIDTH = 50;
+    const auto BIN_HEIGHT = 30;
+    const auto BLOCK_WIDTH = 10;
+    
+    svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT);
+    double top = 0;
+    const size_t MAX_ASTERISK = IMAGE_WIDTH - TEXT_WIDTH;
+    int maxb = bins[0], sum= bins[0];
+    for (size_t j = 1; j < bins.size(); j++)
+    {
+        if (bins[j] > maxb) maxb = bins[j];
+        sum += bins[j];
+    }
+
+    int maxb1 = maxb * BLOCK_WIDTH;
+
+    for (size_t bin : bins) {
+
+        double bin_width;
+
+
+        if (maxb1 > MAX_ASTERISK)
+        {
+            bin_width = BLOCK_WIDTH * MAX_ASTERISK * (bin / maxb1);
+        }
+        else bin_width = BLOCK_WIDTH * bin;
+
+        svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
+        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "red", "#ffeeee");
+        int x = 0; 
+        pers(bin, sum, x);
+        svg_text((TEXT_LEFT+ TEXT_WIDTH+ bin_width), top + TEXT_BASELINE, (to_string(x)+ " % "));
+        top += BIN_HEIGHT;
+    }
+    svg_end();
+    
+
+}
+
+
+

svg.h

@@ -0,0 +1,8 @@
+#ifndef svg
+#define svg
+#include <vector>
+
+void pers(int bin, int sum, int& x);
+void show_histogram_svg(const std::vector <int>& bins);
+
+#endif //svg

text.cpp

@@ -0,0 +1,26 @@
+#include "text.h"
+#include <iostream>
+#include <vector>
+using namespace std;
+
+void show_histogram_text(vector<int>& ch, size_t bin_count)
+{
+    int m = 0, i;
+    for (i = 0; i < bin_count; i++)
+        if (ch[i] > m)
+            m = ch[i];
+    for (i = 0; i < bin_count; i++)
+    {
+        if (ch[i] < 10)
+            cout << "  ";
+        else if (ch[i] < 100)
+            cout << " ";
+        cout << ch[i] << "|";
+        size_t k = ch[i];
+        if (m > 76)
+            k = 76 * (static_cast <double> (ch[i]) / m);
+        for (size_t j = 0; j < k; j++)
+            cout << "*";
+        cout << endl;
+    }
+}

text.h

@@ -0,0 +1,7 @@
+#ifndef text
+#define text
+#include <vector>
+
+void show_histogram_text(std::vector<int>& ch);
+
+#endif //text