code:....

.gitignore

@@ -0,0 +1,4 @@
+/bin
+/obj
+lab01.cpp
+lab_01.layout

histogram.cpp

@@ -3,7 +3,7 @@
 #include "histogram.h"
 using namespace std;
 void
-find_minmax(vector<double> numbers, double& min, double& max) {
+find_minmax(const vector<double>& numbers, double& min, double& max) {
     min = numbers[0];
     max = numbers[0];
     for (double x : numbers) {
@@ -20,7 +20,7 @@ vector<size_t> make_histogram(vector<double> numbers, size_t bin_count) {
     vector <size_t> bins(bin_count);
     double min, max;
     find_minmax(numbers, min, max);
-    size_t countt;
+    size_t count;
     double bin_size = (max - min) / bin_count;
     for (size_t i = 0; i < numbers.size(); i++) {
     bool found = false;

lab_01.cbp

@@ -37,6 +37,7 @@
 		<Unit filename="histogram.h" />
 		<Unit filename="histogram_internal.h" />
 		<Unit filename="main.cpp" />
+		<Unit filename="marks.txt" />
 		<Unit filename="svg.cpp" />
 		<Unit filename="svg.h" />
 		<Unit filename="text.cpp" />

main.cpp

@@ -16,7 +16,7 @@ input_data(){
     cin >> number_count;
     Input in;
     in.numbers.resize(number_count);
-    for(int i;i<number_count;i++)
+    for(size_t i=0;i<number_count;i++)
     {
         cin >> in.numbers[i];
     }

svg.cpp

@@ -0,0 +1,65 @@
+#include <math.h>
+#include <iostream>
+#include <conio.h>
+#include <vector>
+#include <string>
+#include "svg.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
+show_histogram_svg(const vector<size_t>& bins) {
+    const auto IMAGE_WIDTH = 400;
+    const auto IMAGE_HEIGHT = 300;
+    const auto TEXT_LEFT = 10;
+    const auto TEXT_BASELINE = 20;
+    const auto TEXT_WIDTH = 50;
+    const auto BIN_HEIGHT = 30;
+    const auto BLOCK_WIDTH = 10;
+    const auto MAX_WIDTH = IMAGE_WIDTH-TEXT_WIDTH;
+
+
+    svg_begin(IMAGE_WIDTH,IMAGE_HEIGHT);
+
+    double top = 0;
+double max_count = bins[0];
+    for (size_t i = 0; i < bins.size(); i++) {
+        if (bins[i] > max_count)
+            max_count = bins[i];
+    }
+    for (size_t bin : bins) {
+        const double bin_width = MAX_WIDTH * (bin/max_count);
+        const double emptiness_width = MAX_WIDTH - bin_width;
+        svg_rect(0, top, emptiness_width, BIN_HEIGHT, "white", "#ffffff");
+        svg_text(TEXT_LEFT + MAX_WIDTH, top + TEXT_BASELINE, to_string(bin));
+        svg_rect(emptiness_width, top, bin_width, BIN_HEIGHT, "red", "#aaffaa");
+        top += BIN_HEIGHT;
+    }
+
+    svg_end();
+}

svg.h

@@ -0,0 +1,7 @@
+#ifndef SVG_H_INCLUDED
+#define SVG_H_INCLUDED
+#include <vector>
+void
+show_histogram_svg(const std::vector<size_t>& bins);
+
+#endif // SVG_H_INCLUDED

unittest.cpp

@@ -3,11 +3,12 @@
 #include "doctest.h"
 #include "histogram_internal.h"
 
+
 TEST_CASE("distinct positive numbers") {
     double min = 0;
     double max = 0;
-    find_minmax({1, 2}, min, max);
+    std::vector<double>v{2,1};
+    find_minmax(v, min, max);
     CHECK(min == 1);
     CHECK(max == 2);
 }
-