BreganIM
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cs-lab34
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PARZIVAL (BreganIM) 3 месяцев назад
Родитель d7fa671218
Сommit 4d5e66cf96
10 изменённых файлов: 230 добавлений и 27 удалений
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17
histogram.cpp
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@ -1,10 +1,13 @@
#include "histogram.h" #include "histogram.h"
#include "histogram_internal.h" #include "histogram_internal.h"
#include <iostream>
#include <vector> #include <vector>
using namespace std; using namespace std;
void find_minmax(const vector<double>& numbers, double& min, double& max) { bool find_minmax(const vector<double>& numbers, double& min, double& max) {
if (numbers.empty())
return false;
min = numbers[0]; min = numbers[0];
max = numbers[0]; max = numbers[0];
for (double x : numbers) { for (double x : numbers) {
@ -13,6 +16,7 @@ void find_minmax(const vector<double>& numbers, double& min, double& max) {
if (x > max) if (x > max)
max = x; max = x;
} }
return true;
} }
vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count) { vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count) {
@ -23,7 +27,6 @@ vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count) {
for (size_t i = 0; i < numbers.size(); i++) { for (size_t i = 0; i < numbers.size(); i++) {
bool found = false; bool found = false;
for (size_t j = 0; j < bin_count - 1 && !found; j++) { for (size_t j = 0; j < bin_count - 1 && !found; j++) {
double lo = min + j * bin_size; double lo = min + j * bin_size;
double hi = min + (j + 1) * bin_size; double hi = min + (j + 1) * bin_size;
@ -32,9 +35,15 @@ vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count) {
found = true; found = true;
} }
} }
if (!found) if (!found)
bins[bin_count - 1]++; bins[bin_count - 1]++;
} }
return bins; return bins;
} }
double compute_bin_size(const std::vector<double>& numbers, size_t bin_count) {
double min, max;
if (!find_minmax(numbers, min, max))
return 0.0;
return (max - min) / bin_count;
}

2
histogram_internal.h
Unescape Просмотреть файл

@ -1,6 +1,6 @@
#pragma once #pragma once
#include <vector> #include <vector>
void find_minmax(const std::vector<double>& numbers, bool find_minmax(const std::vector<double>& numbers,
double& min, double& min,
double& max); double& max);

7
laba01upd3.cpp
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@ -1,4 +1,5 @@
#include <iostream> 
#include <iostream>
#include <vector> #include <vector>
#include "histogram.h" #include "histogram.h"
#include "svg.h" #include "svg.h"
@ -7,7 +8,6 @@
using namespace std; using namespace std;
struct Input { struct Input {
vector<double> numbers; vector<double> numbers;
size_t bin_count{}; size_t bin_count{};
@ -31,14 +31,11 @@ Input input_data() {
return in; return in;
} }
int main() { int main() {
auto in = input_data(); auto in = input_data();
auto bins = make_histogram(in.numbers, in.bin_count); auto bins = make_histogram(in.numbers, in.bin_count);
show_histogram_svg(bins); show_histogram_svg(bins);
show_histogram_text(bins); show_histogram_text(bins);
return 0; return 0;
} }

147
laba01upd3.vcxproj
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@ -0,0 +1,147 @@
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48
laba01upd3.vcxproj.filters
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@ -0,0 +1,48 @@
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6
svg.cpp
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@ -1,3 +1,4 @@
#include "svg.h" #include "svg.h"
#include <string> #include <string>
using namespace std; using namespace std;
@ -22,16 +23,17 @@ void svg_text(double left, double baseline, const string& text) {
} }
void svg_rect(double x, double y, double width, double height, void svg_rect(double x, double y, double width, double height,
const string& stroke, const string& fill) { const string& stroke, const string& fill, double razb) {
cout << "<rect x='" << x cout << "<rect x='" << x
<< "' y='" << y << "' y='" << y
<< "' width='" << width << "' width='" << width
<< "' height='" << height << "' height='" << height
<< "' stroke='" << stroke << "' stroke='" << stroke
<< "' fill='" << fill << "' fill='" << fill
<< "'tecushee znach:'" << razb
<< "' />\n"; << "' />\n";
} }
void show_histogram_svg(const vector<size_t>& bins) { void show_histogram_svg(const vector<size_t>& bins, const vector<double>& numbers, double razb) {
const double IMAGE_WIDTH = 400; const double IMAGE_WIDTH = 400;
const double IMAGE_HEIGHT = 300; const double IMAGE_HEIGHT = 300;
const double TEXT_LEFT = 20; const double TEXT_LEFT = 20;

1
svg.h
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@ -1,3 +1,4 @@
#pragma once #pragma once
#include <iostream> #include <iostream>
#include <string> #include <string>

2
unittest/histogram_internal.h
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@ -1,6 +1,6 @@
#pragma once #pragma once
#include <vector> #include <vector>
void find_minmax(const std::vector<double>& numbers, bool find_minmax(const std::vector<double>& numbers,
double& min, double& min,
double& max); double& max);

7
unittest/unittest.cpp
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@ -10,10 +10,9 @@ TEST_CASE("distinct positive numbers") {
CHECK(max == 2); CHECK(max == 2);
} }
TEST_CASE("empty vector") { TEST_CASE("empty vector") {
double min = 42, max = 42; double min = 0, max = 0;
find_minmax({}, min, max); CHECK(!find_minmax({}, min, max));
CHECK(min == 42);
CHECK(max == 42);
} }
TEST_CASE("single element") { TEST_CASE("single element") {

14
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@ -24,13 +24,13 @@
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