project: last version

histogram.cpp

@@ -3,17 +3,21 @@
 #include "histogram_internal.h"
 #include <algorithm>
 #include <cmath>
+#include <vector>
+using namespace std;
 
-
+int find_minmax(const std::vector<double>& numbers, double& min, double& max) {
-void find_minmax(const std::vector<double>& numbers, double& min, double& max) {
+    if(numbers.size()){
-    if (numbers.empty()) return;
-
         min = numbers[0];
         max = numbers[0];
+    }
+
+
     for (double num : numbers) {
         if (num < min) min = num;
         if (num > max) max = num;
     }
+    return numbers.size();
 }
 
 std::vector<size_t> make_histogram(const std::vector<double>& numbers, size_t bin_count) {
@@ -56,24 +60,27 @@ Input input_data() {
     return in;
 }
 
-void show_histogram_text(const std::vector<size_t>& bins, size_t max_width) {
+void show_histogram_text(const vector<size_t>& bins, size_t block_width) {
     if (bins.empty()) return;
 
-    size_t max_count = *std::max_element(bins.begin(), bins.end());
+    const size_t max_count = *max_element(bins.begin(), bins.end());
     if (max_count == 0) return;
 
+
+    const size_t max_console_width = 60;
+
+
+    const double scale = static_cast<double>(max_console_width) / max_count;
+
     for (size_t count : bins) {
 
-        if (count < 100) std::cout << " ";
+        size_t stars = static_cast<size_t>(count * scale);
-        if (count < 10) std::cout << " ";
 
-        std::cout << count << "|";
 
+        if (count < 100) cout << " ";
+        if (count < 10) cout << " ";
 
-        size_t bar_length = (count * max_width) / max_count;
+        cout << count << "|";
-        for (size_t i = 0; i < bar_length; ++i) {
+        cout << string(stars, '*') << endl;
-            std::cout << "*";
-        }
-        std::cout << std::endl;
     }
 }

histogram.h

@@ -5,11 +5,10 @@
 
 struct Input {
     std::vector<double> numbers;
-    size_t bin_count{};
+    size_t bin_count;
     size_t number_count;
 };
 
-
 Input input_data();
 std::vector<size_t> make_histogram(const std::vector<double>& numbers, size_t bin_count);
 void show_histogram_text(const std::vector<size_t>& bins, size_t max_width = 80);

histogram.svg

@@ -0,0 +1,9 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<svg width='400' height='300' viewBox='0 0 400 300' xmlns='http://www.w3.org/2000/svg'>
+<text x='20' y='20'>4</text>
+<rect x='50' y='0' width='155' height='30' stroke='black' fill='#aaffaa' />
+<text x='20' y='50'>1</text>
+<rect x='50' y='30' width='38.75' height='30' stroke='black' fill='#aaffaa' />
+<text x='20' y='80'>1</text>
+<rect x='50' y='60' width='38.75' height='30' stroke='black' fill='#aaffaa' />
+</svg>

histogram_internal.h

@@ -3,6 +3,6 @@
 
 #include <vector>
 
-void find_minmax(const std::vector<double>& numbers, double& min, double& max);
+int find_minmax(const std::vector<double>& numbers, double& min, double& max);
 
 #endif

lab1.cbp

@@ -32,7 +32,11 @@
 			<Add option="-Wall" />
 			<Add option="-fexceptions" />
 		</Compiler>
+		<Unit filename="histogram.cpp" />
+		<Unit filename="histogram.h" />
 		<Unit filename="main.cpp" />
+		<Unit filename="svg.cpp" />
+		<Unit filename="svg.h" />
 		<Extensions>
 			<lib_finder disable_auto="1" />
 		</Extensions>

lab1.depend

@@ -0,0 +1,33 @@
+# depslib dependency file v1.0
+1750444036 source:c:\users\taa41\desktop\ïðîãà\lab1\main.cpp
+	<iostream>
+	"histogram.h"
+	"svg.h"
+	<fstream>
+
+1749173822 c:\users\taa41\desktop\ïðîãà\lab1\histogram.h
+	<vector>
+
+1750443911 source:c:\users\taa41\desktop\ïðîãà\lab1\svg.cpp
+	"svg.h"
+	<algorithm>
+	<string>
+	<iostream>
+
+1750442384 c:\users\taa41\desktop\ïðîãà\lab1\svg.h
+	<vector>
+	<string>
+	<iostream>
+	<fstream>
+
+1750443947 source:c:\users\taa41\desktop\ïðîãà\lab1\histogram.cpp
+	<iostream>
+	"histogram.h"
+	"histogram_internal.h"
+	<algorithm>
+	<cmath>
+	<vector>
+
+1749200462 c:\users\taa41\desktop\ïðîãà\lab1\histogram_internal.h
+	<vector>
+

lab1.layout

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<CodeBlocks_layout_file>
+	<FileVersion major="1" minor="0" />
+	<ActiveTarget name="Debug" />
+	<File name="histogram.cpp" open="1" top="0" tabpos="5" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="289" topLine="0" />
+		</Cursor>
+	</File>
+	<File name="main.cpp" open="1" top="0" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="142" topLine="0" />
+		</Cursor>
+	</File>
+	<File name="svg.cpp" open="1" top="0" tabpos="2" split="0" active="1" splitpos="0" zoom_1="-2" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="1151" topLine="0" />
+		</Cursor>
+	</File>
+	<File name="svg.h" open="1" top="1" tabpos="3" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="671" topLine="0" />
+		</Cursor>
+	</File>
+	<File name="histogram.h" open="1" top="0" tabpos="4" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="168" topLine="0" />
+		</Cursor>
+	</File>
+</CodeBlocks_layout_file>

main.cpp

@@ -1,9 +1,24 @@
-#include "histogram.h"
 #include <iostream>
+#include "histogram.h"
+#include "svg.h"
+#include <fstream>
+using namespace std;
 
 int main() {
-    auto in = input_data();
+    Input data = input_data();
-    auto bins = make_histogram(in.numbers, in.bin_count);
+
-    show_histogram_text(bins);
+
+    size_t block_width = svg::input_block_width();
+
+    auto bins = make_histogram(data.numbers, data.bin_count);
+
+
+    show_histogram_text(bins, block_width);
+
+    ofstream svg_file("histogram.svg");
+    svg::show_histogram_svg(svg_file, bins, block_width);
+    svg_file.close();
+
+
     return 0;
 }

svg.cpp

@@ -1,10 +1,34 @@
 #include "svg.h"
 #include <algorithm>
 #include <string>
+#include <iostream>
 
 using namespace std;
 
 namespace svg {
+    size_t BLOCK_WIDTH = 10;
+
+    size_t input_block_width() {
+        size_t width;
+        while (true) {
+            cout << "Ââåäèòå øèðèíó áëîêà ãèñòîãðàììû (3-30px): ";
+            cin >> width;
+
+            if (width < 3) {
+                cout << "Øèðèíà ñëèøêîì ìàëà. Ìèíèìàëüíîå çíà÷åíèå: 3px. Ïîæàëóéñòà, ïîâòîðèòå ââîä.\n";
+            } else if (width > 30) {
+                cout << "Øèðèíà ñëèøêîì âåëèêà. Ìàêñèìàëüíîå çíà÷åíèå: 30px. Ïîæàëóéñòà, ïîâòîðèòå ââîä.\n";
+            } else {
+                break;
+            }
+        }
+        return width;
+    }
+
+    void set_block_width(size_t width) {
+        BLOCK_WIDTH = width;
+    }
+
     void begin(ostream& out, double width, double height) {
         out << "<?xml version='1.0' encoding='UTF-8'?>\n";
         out << "<svg width='" << width << "' height='" << height << "' "
@@ -27,7 +51,7 @@ namespace svg {
             << "' fill='" << fill << "' />\n";
     }
 
-    void show_histogram_svg(ostream& out, const vector<size_t>& bins) {
+void show_histogram_svg(ofstream& out, const vector<size_t>& bins, size_t block_width) {
     begin(out, IMAGE_WIDTH, IMAGE_HEIGHT);
 
     if (bins.empty()) {
@@ -35,22 +59,29 @@ namespace svg {
         return;
     }
 
+    const size_t max_count = *max_element(bins.begin(), bins.end());
+    if (max_count == 0) {
+        end(out);
+        return;
+    }
+
+
+    const double max_svg_width = IMAGE_WIDTH - TEXT_WIDTH - 40;
+
 
-        size_t max_count = *max_element(bins.begin(), bins.end());
+    const double scale = max_svg_width / max_count;
-        double scale = (max_count > 0) ? (IMAGE_WIDTH - TEXT_WIDTH) / static_cast<double>(max_count) : 1.0;
 
     double top = 0;
     for (size_t bin : bins) {
-            const double bin_width = bin * scale;
-            text(out, TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
 
+        double width = bin * scale * (block_width / 10.0);
 
-            string fill_color = (static_cast<int>(top / BIN_HEIGHT) % 2 == 0) ? "#aaffaa" : "#aaaaff";
+        text(out, TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
-            rect(out, TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "black", fill_color);
+        rect(out, TEXT_WIDTH, top, width, BIN_HEIGHT, "black", "#aaffaa");
 
         top += BIN_HEIGHT;
     }
 
     end(out);
-    }
+}
 }

svg.h

@@ -4,7 +4,7 @@
 #include <vector>
 #include <string>
 #include <iostream>
-
+#include <fstream>
 
 const size_t IMAGE_WIDTH = 400;
 const size_t IMAGE_HEIGHT = 300;
@@ -12,7 +12,6 @@ const size_t TEXT_LEFT = 20;
 const size_t TEXT_BASELINE = 20;
 const size_t TEXT_WIDTH = 50;
 const size_t BIN_HEIGHT = 30;
-const size_t BLOCK_WIDTH = 10;
 
 namespace svg {
     void begin(std::ostream& out, double width, double height);
@@ -20,8 +19,9 @@ namespace svg {
     void text(std::ostream& out, double left, double baseline, const std::string& text);
     void rect(std::ostream& out, double x, double y, double width, double height,
               const std::string& stroke = "black", const std::string& fill = "#dddddd");
-
+    void show_histogram_svg(std::ofstream& out, const std::vector<size_t>& bins, size_t block_width);
-    void show_histogram_svg(std::ostream& out, const std::vector<size_t>& bins);
+    size_t input_block_width();
+    void set_block_width(size_t width);
 }
 
 #endif

unittest.cbp

@@ -31,6 +31,9 @@
 		<Compiler>
 			<Add option="-Wall" />
 		</Compiler>
+		<Unit filename="histogram.cpp" />
+		<Unit filename="histogram_internal.h" />
+		<Unit filename="unittest.cpp" />
 		<Extensions>
 			<lib_finder disable_auto="1" />
 		</Extensions>

unittest.cpp

@@ -0,0 +1,52 @@
+#define DOCTEST_CONFIG_NO_MULTITHREADING
+#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+#include "doctest.h"
+#include "histogram_internal.h"
+
+TEST_CASE("distinct positive numbers") {
+    double min = 0;
+    double max = 0;
+    find_minmax({1, 2}, min, max);
+    CHECK(min == 1);
+    CHECK(max == 2);
+}
+
+TEST_CASE("empty vector") {
+    double min = 0;
+    double max = 0;
+    int sz = find_minmax({}, min, max);
+
+    CHECK(sz == 0);
+}
+
+TEST_CASE("single element vector") {
+    double min = 0;
+    double max = 0;
+    find_minmax({5}, min, max);
+    CHECK(min == 5);
+    CHECK(max == 5);
+}
+
+TEST_CASE("negative numbers") {
+    double min = 0;
+    double max = 0;
+    find_minmax({-3, -1, -5}, min, max);
+    CHECK(min == -5);
+    CHECK(max == -1);
+}
+
+TEST_CASE("identical elements") {
+    double min = 0;
+    double max = 0;
+    find_minmax({7, 7, 7}, min, max);
+    CHECK(min == 7);
+    CHECK(max == 7);
+}
+
+TEST_CASE("mixed positive and negative numbers") {
+    double min = 0;
+    double max = 0;
+    find_minmax({-2, 3, 0, -5, 4}, min, max);
+    CHECK(min == -5);
+    CHECK(max == 4);
+}

unittest.depend

@@ -0,0 +1,63 @@
+# depslib dependency file v1.0
+1749200479 source:c:\users\taa41\desktop\ïðîãà\lab1\histogram.cpp
+	<iostream>
+	"histogram.h"
+	"histogram_internal.h"
+	<algorithm>
+	<cmath>
+
+1749173822 c:\users\taa41\desktop\ïðîãà\lab1\histogram.h
+	<vector>
+
+1749200462 c:\users\taa41\desktop\ïðîãà\lab1\histogram_internal.h
+	<vector>
+
+1749200396 source:c:\users\taa41\desktop\ïðîãà\lab1\unittest.cpp
+	"doctest.h"
+	"histogram_internal.h"
+
+1749168294 c:\users\taa41\desktop\ïðîãà\lab1\doctest.h
+	<signal.h>
+	<ciso646>
+	<cstddef>
+	<ostream>
+	<istream>
+	<type_traits>
+	"doctest_fwd.h"
+	<ctime>
+	<cmath>
+	<climits>
+	<math.h>
+	<new>
+	<cstdio>
+	<cstdlib>
+	<cstring>
+	<limits>
+	<utility>
+	<fstream>
+	<sstream>
+	<iostream>
+	<algorithm>
+	<iomanip>
+	<vector>
+	<atomic>
+	<mutex>
+	<set>
+	<map>
+	<unordered_set>
+	<exception>
+	<stdexcept>
+	<csignal>
+	<cfloat>
+	<cctype>
+	<cstdint>
+	<string>
+	<sys/types.h>
+	<unistd.h>
+	<sys/sysctl.h>
+	<AfxWin.h>
+	<windows.h>
+	<io.h>
+	<sys/time.h>
+	<unistd.h>
+

unittest.layout

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<CodeBlocks_layout_file>
+	<FileVersion major="1" minor="0" />
+	<ActiveTarget name="Debug" />
+	<File name="histogram_internal.h" open="1" top="1" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="171" topLine="0" />
+		</Cursor>
+	</File>
+	<File name="histogram.cpp" open="1" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="0" topLine="0" />
+		</Cursor>
+	</File>
+	<File name="unittest.cpp" open="1" top="0" tabpos="2" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="225" topLine="0" />
+		</Cursor>
+	</File>
+</CodeBlocks_layout_file>