code: добавлен вывод процентов

histogram.cpp

@@ -1,6 +1,10 @@
 #include "histogram.h"
-
+#include <cmath>
-void find_minmax(vector<double> vec, double& min, double& max) {
+bool find_minmax(vector<double> vec, double& min, double& max) {
+    if (vec.size() == 0) {
+        cerr << "Empty vec";
+        return false;
+    }
     min = vec[0];
     max = vec[0];
     for (double x : vec) {
@@ -12,8 +16,8 @@ void find_minmax(vector<double> vec, double& min, double& max) {
             max = x;
         }
     }
+     return true;
 }
-
 vector<size_t> make_histogram(size_t number, vector<double> vec) {
     vector<size_t> bins(number);
     double mn, mx;
@@ -36,3 +40,19 @@ vector<size_t> make_histogram(size_t number, vector<double> vec) {
     }
     return bins;
 }
+vector<int> make_percentages(const vector<size_t>& bins) {
+    size_t total = 0;
+    for (auto x : bins) {
+        total += x;
+    }
+    vector<int> pct(bins.size());
+    for (size_t i = 0; i < bins.size(); i++) {
+        if (total > 0) {
+            pct[i] = static_cast<int>(round(100.0 * bins[i] / total));
+        }
+        else {
+            pct[i] = 0;
+        }
+    }
+    return pct;
+}

histogram.h

@@ -4,5 +4,5 @@
 #include <iostream>
 using namespace std;
 vector<size_t> make_histogram(size_t number, vector<double> vec);
-
+vector<int> make_percentages(const vector<size_t>& bins);
 #endif // HISTOGRAM_H_INCLUDED

histogram_internal.h

@@ -1,6 +1,6 @@
 #ifndef HISTOGRAM_INTERNAL_H_INCLUDED
 #define HISTOGRAM_INTERNAL_H_INCLUDED
 
-void find_minmax(std::vector<double> vec, double& min, double& max);
+bool find_minmax(std::vector<double> vec, double& min, double& max);
 
 #endif // HISTOGRAM_INTERNAL_H_INCLUDED

lab1.cbp

@@ -32,7 +32,22 @@
 			<Add option="-Wall" />
 			<Add option="-fexceptions" />
 		</Compiler>
+		<Unit filename="histogram.cpp" />
+		<Unit filename="histogram.h">
+			<Option target="&lt;{~None~}&gt;" />
+		</Unit>
+		<Unit filename="histogram_internal.h">
+			<Option target="&lt;{~None~}&gt;" />
+		</Unit>
 		<Unit filename="main.cpp" />
+		<Unit filename="svg.cpp" />
+		<Unit filename="svg.h">
+			<Option target="&lt;{~None~}&gt;" />
+		</Unit>
+		<Unit filename="text.cpp" />
+		<Unit filename="text.h">
+			<Option target="&lt;{~None~}&gt;" />
+		</Unit>
 		<Extensions>
 			<lib_finder disable_auto="1" />
 		</Extensions>

svg.cpp

@@ -1,5 +1,5 @@
 #include "svg.h"
-
+#include <cmath>
 using namespace std;
 
 void
@@ -34,38 +34,62 @@ svg_rect(double x, double y, double width, double height, string stroke = "black
 
 
 
-void
+
-show_histogram_svg(const vector<size_t>& bins)
+void show_histogram_svg(const vector<size_t>& bins)
  {
-    const auto IMAGE_WIDTH = 400;
+    const auto ORIG_WIDTH    = 400;
+    const auto PADDING_RIGHT = 50;
+    const auto IMAGE_WIDTH   = ORIG_WIDTH + PADDING_RIGHT;
     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;
+    const auto BLACK         = "black";
-    const auto GREEN = "green"
     const auto RED           = "red";
-    const auto MAX_WIDTH = IMAGE_WIDTH - TEXT_WIDTH;
+    const auto MAX_WIDTH     = ORIG_WIDTH - TEXT_WIDTH;
-
+    const auto PERCENT_X     = TEXT_WIDTH + MAX_WIDTH + 10;
 
     svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT);
 
+    double max_count = 0;
+    for (auto b : bins) {
+        if (b > max_count) {
+            max_count = b;
+        }
+    }
+
+    size_t total_count = 0;
+    for (auto b : bins) {
+        total_count += b;
+    }
+
     double top = 0;
-    double max_count = bins[0];
+    for (auto b : bins) {
-    for (size_t i = 0; i < bins.size(); i++)
+
-    {
+        double bin_width = 0;
-        if (max_count < bins[i])
+        if (max_count > 0) {
-        {
+            bin_width = MAX_WIDTH * (b / max_count);
-            max_count = bins[i];
+        }
+
+
+        svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(b));
+
+        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, BLACK, RED);
+
+
+        int pct = 0;
+        if (total_count > 0) {
+            pct = static_cast<int>(round(100.0 * b / total_count));
         }
+        string pct_str = to_string(pct);
+        if (pct < 10) {
+            pct_str = "0" + pct_str;
         }
+        pct_str += "%";
+
+        svg_text(PERCENT_X, top + TEXT_BASELINE, pct_str);
 
-    for (size_t bin : bins)
-    {
-        double bin_width = (MAX_WIDTH) * (bin/max_count);
-        svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
-        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, GREEN, RED);
         top += BIN_HEIGHT;
     }
 

svg.h

@@ -1,6 +1,5 @@
 #ifndef SVG_H_INCLUDED
 #define SVG_H_INCLUDED
-
 #include <iostream>
 #include <vector>
 #include <string>

text.cpp

@@ -1,9 +1,15 @@
 #include "text.h"
+#include "histogram.h"
+#include <iostream>
+#include <vector>
+#include <string>
 
-void show_histogram(std::vector<size_t> bins) {
+void show_histogram(vector<size_t> bins) {
     bool gigant = false;
-    auto spaces = 0;
+    size_t spaces = 0;
     size_t mx_count = 0;
+
+
     for (auto x : bins) {
         if (x > 76) {
             gigant = true;
@@ -11,73 +17,68 @@ void show_histogram(std::vector<size_t> bins) {
         if (x > mx_count) {
             mx_count = x;
         }
-        auto len = 0;
+        size_t len = 0;
-        while (x > 0) {
+        size_t t = x;
-            x /= 10;
+        do {
+            t /= 10;
             len++;
-        }
+        } while (t > 0);
         if (len > spaces) {
             spaces = len;
         }
-
     }
-    if (spaces == 1) {
+
-        for (size_t i = 0; i < bins.size(); i++) {
+    size_t bar_max_width;
-            std::cout << "  " << bins[i] << "|";
     if (gigant) {
-                if (bins[i] == mx_count) {
+        bar_max_width = 76;
-                    for (size_t j = 0; j < 76; j++) {
+    } else {
-                        std::cout << "*";
+        bar_max_width = mx_count;
-                    }
-                }
-                else
-                {
-                    for (size_t j = 0; j < 76 * static_cast<double>(bins[i]) / mx_count; j++) {
-                        std::cout << "*";
-                    }
-                }
-            }
-            else
-            {
-                for (size_t j = 0; j < bins[i]; j++) {
-                    std::cout << "*";
-                }
-                std::cout << std::endl;
-            }
     }
-    }
+
-    else
+    auto percentages = make_percentages(bins);
-    {
+
-        for (size_t i = 0; i < bins.size(); i++) {
+    for (size_t i = 0; i < bins.size(); ++i) {
-            int len = 1;
+
-            int k = bins[i];
+        size_t len = 0;
-            for (; k /= 10; ++len);
+        size_t t = bins[i];
-            while (len < spaces) {
+        do {
-                std::cout << " ";
+            t /= 10;
             len++;
+        } while (t > 0);
+        for (size_t s = len; s < spaces + 1; ++s) {
+            cout << " ";
         }
-            std::cout << bins[i];
+        cout << bins[i] << "|";
-            std::cout << "|";
+
+
+        size_t star_count = 0;
         if (gigant) {
             if (bins[i] == mx_count) {
-                    for (size_t j = 0; j < 76; j++) {
+                star_count = 76;
-                        std::cout << "*";
+            } else {
-                    }
+                star_count = static_cast<size_t>(76 * static_cast<double>(bins[i]) / mx_count);
             }
-                else
+        } else {
-                {
+            star_count = bins[i];
-                    for (size_t j = 0; j < (76 * static_cast<double>(bins[i]) / mx_count - 1); j++) {
-                        std::cout << "*";
         }
+        for (size_t j = 0; j < star_count; ++j) {
+            cout << "*";
         }
+
+        size_t pad = bar_max_width - star_count;
+        for (size_t p = 0; p < pad + 2; ++p) {
+            cout << " ";
         }
-            else
+
-            {
+        int pct = percentages[i];
-                for (size_t j = 0; j < bins[i]; j++) {
+        string pct_str;
-                    std::cout << "*";
+        if (pct < 10) {
-                }
+            pct_str = "0" + to_string(pct);
-            }
+        } else {
-            std::cout << std::endl;
+            pct_str = to_string(pct);
-        }
+        }
+        pct_str += "%";
+
+        cout << pct_str << "\n";
     }
 }

text.h

@@ -3,6 +3,7 @@
 
 #include <iostream>
 #include <vector>
+
 void show_histogram(std::vector<size_t> bins);
 
 #endif // TEXT_H_INCLUDED

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

@@ -3,6 +3,8 @@
 #include "doctest.h"
 #include "histogram_internal.h"
 
+using namespace std;
+
 TEST_CASE("distinct positive numbers") {
     double min = 0;
     double max = 0;
@@ -10,12 +12,13 @@ TEST_CASE("distinct positive numbers") {
     CHECK(min == 1);
     CHECK(max == 2);
 }
-TEST_CASE("distinct negative numbers"){
+
+TEST_CASE("empty vector"){
     double min = 0;
     double max = 0;
-    find_minmax({-1, -2}, min, max);
+    vector<double> empty;
-    CHECK(min == -2);
+    bool result = find_minmax(empty, min, max);
-    CHECK(max == -1);
+    CHECK(!result);
 }
 TEST_CASE("vector of the same elements"){
     double min = 0;

unittest.depend

@@ -1,8 +1,60 @@
 # depslib dependency file v1.0
-1746270053 source:c:\users\professional\desktop\cs-lab34\lab1\histogram.cpp
+1746444035 source:c:\users\professional\desktop\cs-lab34\lab1\histogram.cpp
 	"histogram.h"
+	<cmath>
 
-1746269334 c:\users\professional\desktop\cs-lab34\lab1\histogram.h
+1746443248 c:\users\professional\desktop\cs-lab34\lab1\histogram.h
 	<vector>
 	<iostream>
 
+1746274690 source:c:\users\professional\desktop\cs-lab34\lab1\unittest.cpp
+	"doctest.h"
+	"histogram_internal.h"
+
+1746271199 c:\users\professional\desktop\cs-lab34\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>
+
+1746444163 c:\users\professional\desktop\cs-lab34\lab1\histogram_internal.h
+