code: Ввод из произвольного потока

main
TroyanovDS 2 лет назад
Родитель 5192345306
Сommit 608ddbf85f

@ -1,6 +1,9 @@
#include <iostream> #include <iostream>
#include <cmath> #include <cmath>
#include <vector> #include <vector>
#include "histogram.h"
#include "text.h"
#include "svg.h"
using namespace std; using namespace std;
const size_t SCREEN_WIDTH = 80; const size_t SCREEN_WIDTH = 80;
@ -9,115 +12,48 @@ const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
struct Input { struct Input {
vector<double> numbers; vector<double> numbers;
size_t bin_count{}; size_t bin_count{};
vector<string> fill;
}; };
Input Input
input_data() input_data(istream& inx)
{ {
size_t number_count; size_t number_count;
cerr << "number_count= "; cerr << "number_count= ";
cin >> number_count; inx >> number_count;
Input in; Input in;
in.numbers.resize(number_count); in.numbers.resize(number_count);
cerr << "numbers: "; cerr << "numbers: ";
for (size_t i = 0; i < number_count; i++) { for (size_t i = 0; i < number_count; i++) {
cin >> in.numbers[i]; inx >> in.numbers[i];
} }
cerr << "bin_count= "; cerr << "bin_count= ";
cin >> in.bin_count; inx >> in.bin_count;
return in; in.fill.resize(in.bin_count);
}
void
find_minmax(const vector<double>& numbers, double &min, double &max)
{
min = numbers[0]; for (size_t i = 0; i < in.bin_count; i++)
max = numbers[0];
for (size_t i = 0; i < numbers.size(); i++)
{ {
if (numbers[i] > max) cerr << "Cvet: ";
max = numbers[i]; inx >> in.fill[i];
if (numbers[i] < min)
min = numbers[i];
} }
}
vector <size_t> make_histogram (const vector<double>& numbers, size_t &bin_count)
{
vector <size_t> bins(bin_count);
double min, max;
float low, hi;
find_minmax(numbers, min, max); return in;
double bin_size = (max - min) / bin_count;
low = min;
hi = low + bin_size;
for (size_t i = 0; i < numbers.size(); i++)
{
bool found = false;
for (size_t j = 0; (j < bin_count - 1) && !found; j++)
{
low = min + j * bin_size;
hi = min + (j + 1) * bin_size;
if ((low <= numbers[i]) && (numbers[i] < hi))
{
bins[j]++;
found = true;
}
}
if (found==false)
{
bins[bin_count - 1]++;
}
}
return bins;
}
void show_histogram_text(const vector<size_t>& bins, size_t &bin_count)
{
size_t max_bin = bins[0];
for (size_t bin : bins)
if (bin > max_bin)
max_bin = bin;
for (size_t bin : bins)
{
int height = bin;
if (max_bin > MAX_ASTERISK)
{
height = MAX_ASTERISK * (static_cast<double>(bin) / max_bin);
}
if (bin < 100)
cout << " ";
if (bin < 10)
cout << " ";
cout << bin << "|";
for (int i = 0; i < height; i++)
cout << "*";
cout << endl;
}
} }
int int
main() main()
{ {
auto in = input_data(cin);
auto in = input_data();
auto bins = make_histogram(in.numbers, in.bin_count); auto bins = make_histogram(in.numbers, in.bin_count);
show_histogram_text(bins, in.bin_count); show_histogram_svg(bins, in.fill);
return 0; return 0;
} }

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