code: функции

lab01/lab01.cpp

@@ -1,65 +1,96 @@
-#include <vector>
-#include <iostream>
+#include <iostream>
+#include <vector>
+
+
 using namespace std;
 
-int main() {
-	const size_t SCREEN_WIDTH = 80;
-	const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
-	int i,j;
-	string a,b,c;
-	size_t number_count, bin_count;
-	cerr << "Enter number count: ";
-	cin >> number_count;
-	cerr << "Enter colichestvo corzin: ";
-	cin >> bin_count;
-	vector <size_t> bins(bin_count);
-	vector <double> numbers(number_count);
-	for (i = 0; i < number_count; i++) {
-		cin >> numbers[i];
-	}
-	double min = numbers[0];
-	double max = numbers[0];
-	for (double x : numbers) {
-		if (x < min) {
-			min = x;
-		}
-		else if (x > max) {
-			max = x;
-		}
-	}
-	double bin_size = (max - min) / bin_count;
-	for (size_t i = 0; i < number_count; i++) {
-		bool found = false;
-		for (size_t j = 0; (j < bin_count - 1) && !found; j++) {
-			double lo = min + j * bin_size;
-			double hi = min + (j + 1) * bin_size;
-			if ((lo <= numbers[i]) && (numbers[i] < hi)) {
-				bins[j]++;
-				found = true;
-			}
-		}
-		if (!found) {
-			bins[bin_count - 1]++;
-		}
-	}
-	int maxlen = 0;
-	for (int j = 0; j < bin_count; j++)
-	{
-		if (maxlen < bins[j]) maxlen = bins[j];
-	}
-	for (int j = 0; j < bin_count; j++)
-	{
-		if (bins[j] < 100) cout << " ";
-		if (bins[j] < 10) cout << " ";
-		cout << bins[j] << "|";
-		size_t height = bins[j];
-		if (maxlen > MAX_ASTERISK)
-		{
-			if (maxlen != bins[j]) height = MAX_ASTERISK * (static_cast<float>(bins[j]) / maxlen);
-			else if (maxlen == bins[j]) height = MAX_ASTERISK;
-		}
-		for (int i = 0; i < height; i++) cout << "*";
-		cout << "\n";
-	}
-	return 0;
-}
+struct Input {
+    vector<double> numbers;
+    size_t bucket{};
+    size_t number_count{};
+};
+
+Input
+input_data() {
+    Input in;
+    cin >> in.number_count;
+    cin >> in.bucket;
+    in.numbers.resize(in.number_count);
+    for (size_t i = 0; i < in.number_count; i++) {
+        cin >> in.numbers[i];
+    }
+    return in;
+}
+
+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;
+        else if (x > max) max = x;
+    }
+}
+
+vector <size_t>
+make_histogram(const vector<double>& numbers, size_t bucket, size_t number_count) {
+    vector <size_t> stolb(bucket);
+    double min, max;
+    find_minmax(numbers, min, max);
+    float k = (max - min) / bucket;
+    for (size_t i = 0; i < bucket; i++) stolb[i] = 0;
+    for (size_t i = 0; i < number_count; i++)
+    {
+        bool flag = false;
+        for (size_t j = 0; (j < bucket && !flag); j++)
+        {
+            if (numbers[i] >= (min + k * j) && numbers[i] < (min + k * (1 + j)))
+            {
+                stolb[j]++;
+                flag = true;
+
+            }
+        }
+        if (!flag) stolb[bucket - 1]++;
+    }
+    return stolb;
+}
+
+void
+show_histogram_text(vector <size_t> stolb, size_t bucket) {
+    const size_t SCREEN_WIDTH = 80;
+    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
+    int maxlen = 0;
+
+    for (int j = 0; j < bucket; j++)
+    {
+        if (maxlen < stolb[j]) maxlen = stolb[j];
+    }
+
+    for (int j = 0; j < bucket; j++)
+    {
+        if (stolb[j] < 100) cout << " ";
+        if (stolb[j] < 10) cout << " ";
+        cout << stolb[j] << "|";
+        size_t height = stolb[j];
+        if (maxlen > MAX_ASTERISK)
+        {
+            if (maxlen != stolb[j]) height = MAX_ASTERISK * (static_cast <float> (stolb[j]) / maxlen);
+            else if (maxlen == stolb[j]) height = MAX_ASTERISK;
+        }
+        for (int i = 0; i < height; i++) cout << "*";
+        cout << "\n";
+    }
+}
+
+
+int main()
+{
+
+    auto in = input_data();
+    auto stolb = make_histogram(in.numbers, in.bucket, in.number_count);
+    show_histogram_text(stolb, in.bucket);
+
+    return 0;
+}