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Автор SHA1 Сообщение Дата
1a71d05e31 вывод гистограммы в svg формате 2025-04-30 16:19:46 +03:00
b05acb6af0 созданы тесты 2025-04-30 16:18:24 +03:00
8 изменённых файлов: 134 добавлений и 173 удалений

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@@ -1,40 +0,0 @@
#include "histogram.h"
bool
find_minmax(std::vector<double> numbers, double& min, double& max) {
if(numbers.size() == 0){
return false;
}
min = numbers[0];
max = numbers[0];
for (double x : numbers) {
if (x < min) {
min = x;
}
else if (x > max)
{
max = x;
}
}
return true;
}
std::vector<size_t>
make_histogram(const std::vector<double>& numbers,size_t bin_count){
std::vector<size_t> bins(bin_count);
double min,max;
find_minmax(numbers,min,max);
double bin_size=(max-min)/bin_count;
for(size_t i=0; i<numbers.size(); i++){
bool found = false;
for(size_t j=0;(j<bin_count-1)&& !found; j++){
auto lo=min+j*bin_size;
auto hi=min+(j+1)*bin_size;
if((lo<=numbers[i])&&(numbers[i]<hi)){
bins[j]++;
found=true;
}
}if(!found){
bins[bin_count-1]++;
}
}
return bins;
}

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@@ -1,8 +0,0 @@
#ifndef HISTOGRAM_H_INCLUDED
#define HISTOGRAM_H_INCLUDED
#include <vector>
#include <iostream>
std::vector<size_t>
make_histogram(const std::vector<double>& numbers, size_t bin_count);
#endif

Просмотреть файл

@@ -1,8 +0,0 @@
#ifndef HISTOGRAM_INTERNAL_H_INCLUDED
#define HISTOGRAM_INTERNAL_H_INCLUDED
#include <vector>
#include <iostream>
bool
find_minmax(const std::vector<double>& numbers, double& min, double& max);
#endif

140
main.cpp
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@@ -1,12 +1,5 @@
#include <curl/curl.h>
#include <sstream>
#include <string>
#include "histogram.h"
#include "text.h"
#include <iostream>
#include <vector>
#include "svg.h"
using namespace std;
struct Input {
@@ -14,57 +7,108 @@ struct Input {
size_t bin_count{};
};
Input
input_data(istream& in,bool promt = false) {
input_data(){
size_t number_count;
if (promt)
cerr << "Number_count: ";
in >> number_count;
Input im;
im.numbers.resize(number_count);
cin >> number_count;
Input in;
in.numbers.resize(number_count);
for (size_t i = 0; i < number_count; i++) {
in >> im.numbers[i];
cin >> in.numbers[i];
}
if (promt)
cerr << "Enter bin_count: ";
in >> im.bin_count;
return im;
cin >> in.bin_count;
return in;
}
size_t write_data(void* items, size_t item_size, size_t item_count, void* ctx){
stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
size_t data_size = item_size * item_count;
buffer->write(reinterpret_cast<const char*>(items), data_size);
return data_size;
}
Input download(const string& address) {
stringstream buffer;
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
CURLcode res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
if(res != 0){
cerr << curl_easy_strerror(res);
exit(1);
void
find_minmax(const vector<double>& numbers, double& min, double& max) {
min = numbers[0];
max = numbers[0];
for(double x : numbers){
if(x<min){
min=x;
}
if(x>max){
max=x;
}
}
return input_data(buffer, false);
}
int main(int argc, char* argv[]) {
curl_global_init(CURL_GLOBAL_ALL);
Input input;
if (argc > 1) {
input = download(argv[1]);
} else {
input = input_data(cin, true);
vector<size_t>
make_histogram(const vector<double>& numbers,size_t bin_count){
vector<size_t> bins(bin_count);
double min,max;
find_minmax(numbers,min,max);
double bin_size=(max-min)/bin_count;
for(size_t i=0; i<numbers.size(); i++){
bool found = false;
for(size_t j=0;(j<bin_count-1)&& !found; j++){
auto lo=min+j*bin_size;
auto hi=min+(j+1)*bin_size;
if((lo<=numbers[i])&&(numbers[i]<hi)){
bins[j]++;
found=true;
}
auto bins = make_histogram(input.numbers, input.bin_count);
show_histogram_svg(bins);
}if(!found){
bins[bin_count-1]++;
}
}
return bins;
}
void
show_histogram(vector<size_t>bins,size_t bin_count){
size_t Maxbins = 0;
for (size_t i = 0; i < bin_count; i++)
{
if (bins[i] > Maxbins)
{
Maxbins = bins[i];
}
}
const size_t MAX_HEIGHT = 76;
if (Maxbins <= MAX_HEIGHT)
{
for (size_t i = 0; i < bin_count; i++)
{
if (bins[i] < 10)
{
cout << " ";
}
cout << " " << bins[i]<< "|";
for (size_t j = 0; j < bins[i]; j++)
{
cout << "*";
}
cout << endl;
}
}
else
{
for (size_t i = 0; i < bin_count; i++)
{
size_t height = static_cast<size_t>(MAX_HEIGHT * (static_cast<double>(bins[i]) / Maxbins));
if (bins[i] < 100)
{
cout << " ";
}
if (bins[i] < 10)
{
cout << " ";
}
cout << bins[i] << "|";
for (size_t j = 0; j < height; j++)
{
cout << "*";
}
cout << endl;
}
}
}
int
main() {
auto in = input_data();
auto bins = make_histogram(in.numbers, in.bin_count);
show_histogram(bins,in.bin_count);
return 0;
}

8
svg.h
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@@ -1,8 +0,0 @@
#ifndef SVG_H_INCLUDED
#define SVG_H_INCLUDED
#include <vector>
#include <iostream>
void
show_histogram_svg(const std::vector<size_t>& bins);
#endif

Просмотреть файл

@@ -1,51 +0,0 @@
#include "text.h"
void
show_histogram_text(std::vector<size_t>bins,size_t bin_count){
size_t Maxbins = 0;
for (size_t i = 0; i < bin_count; i++)
{
if (bins[i] > Maxbins)
{
Maxbins = bins[i];
}
}
const size_t MAX_HEIGHT = 76;
if (Maxbins <= MAX_HEIGHT)
{
for (size_t i = 0; i < bin_count; i++)
{
if (bins[i] < 10)
{
std::cout << " ";
}
std::cout << " " << bins[i]<< "|";
for (size_t j = 0; j < bins[i]; j++)
{
std::cout << "*";
}
std::cout << std::endl;
}
}
else
{
for (size_t i = 0; i < bin_count; i++)
{
size_t height = static_cast<size_t>(MAX_HEIGHT * (static_cast<double>(bins[i]) / Maxbins));
if (bins[i] < 100)
{
std::cout << " ";
}
if (bins[i] < 10)
{
std::cout << " ";
}
std::cout << bins[i] << "|";
for (size_t j = 0; j < height; j++)
{
std::cout << "*";
}
std::cout << std::endl;
}
}
}

8
text.h
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@@ -1,8 +0,0 @@
#ifndef TEXT_H_INCLUDED
#define TEXT_H_INCLUDED
#include <vector>
#include <iostream>
void
show_histogram_text(std::vector<size_t>bins,size_t bin_count);
#endif

40
unittest.cbp Обычный файл
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@@ -0,0 +1,40 @@
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<CodeBlocks_project_file>
<FileVersion major="1" minor="6" />
<Project>
<Option title="unittest" />
<Option pch_mode="2" />
<Option compiler="gcc" />
<Build>
<Target title="Debug">
<Option output="bin/Debug/unittest" prefix_auto="1" extension_auto="1" />
<Option object_output="obj/Debug/" />
<Option type="1" />
<Option compiler="gcc" />
<Compiler>
<Add option="-g" />
</Compiler>
</Target>
<Target title="Release">
<Option output="bin/Release/unittest" prefix_auto="1" extension_auto="1" />
<Option object_output="obj/Release/" />
<Option type="1" />
<Option compiler="gcc" />
<Compiler>
<Add option="-O2" />
</Compiler>
<Linker>
<Add option="-s" />
</Linker>
</Target>
</Build>
<Compiler>
<Add option="-Wall" />
</Compiler>
<Unit filename="doctest.h" />
<Unit filename="histogram.cpp" />
<Unit filename="histogram_internal.h" />
<Unit filename="unittest.cpp" />
<Extensions />
</Project>
</CodeBlocks_project_file>