code: фуннкции для построенния гистограммы

svg.cpp

@@ -0,0 +1,57 @@
+#include "svg.h"
+#include <iostream>
+#include <string>
+#include <algorithm>
+
+using namespace std;
+
+void svg_begin(double width, double height) {
+    cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
+    cout << "<svg width='" << width << "' height='" << height << "' "
+        << "viewBox='0 0 " << width << " " << height << "' "
+        << "xmlns='http://www.w3.org/2000/svg'>\n";
+}
+
+void svg_end() {
+    cout << "</svg>\n";
+}
+
+void svg_text(double left, double baseline, const string& text) {
+    cout << "<text x='" << left << "' y='" << baseline << "'>"
+        << text << "</text>\n";
+}
+
+void svg_rect(double x, double y, double width, double height,
+    const string& stroke, const string& fill) {
+    cout << "<rect x='" << x << "' y='" << y << "' "
+        << "width='" << width << "' height='" << height << "' "
+        << "stroke='" << stroke << "' fill='" << fill << "'/>\n";
+}
+
+void show_histogram_svg(const vector<size_t>& 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 MAX_BIN_WIDTH = IMAGE_WIDTH - TEXT_WIDTH - 10;
+
+    svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT);
+
+    // Íàõîäèì ìàêñèìàëüíîå çíà÷åíèå â êîðçèíàõ äëÿ ìàñøòàáèðîâàíèÿ
+    size_t max_count = *max_element(bins.begin(), bins.end());
+    double scaling_factor = max_count > 0 ?
+        static_cast<double>(MAX_BIN_WIDTH) / max_count : 1.0;
+
+    double top = 0;
+    for (size_t bin : bins) {
+        const double bin_width = bin * scaling_factor;
+        svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
+        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT,
+            "#2ecc71", "#27ae60"); // Çåë¸íûå ñòîëáöû (ñâåòëûé è ò¸ìíûé îòòåíêè)
+        top += BIN_HEIGHT;
+    }
+
+    svg_end();
+}