разделил код на файлы cpp и h

cs-lab34.cbp

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<CodeBlocks_project_file>
+	<FileVersion major="1" minor="6" />
+	<Project>
+		<Option title="cs-lab34" />
+		<Option pch_mode="2" />
+		<Option compiler="gcc" />
+		<Build>
+			<Target title="Debug">
+				<Option output="bin/Debug/cs-lab34" 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/cs-lab34" 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" />
+			<Add option="-fexceptions" />
+		</Compiler>
+		<Unit filename="main.cpp" />
+		<Extensions />
+	</Project>
+</CodeBlocks_project_file>

cs-lab34.layout

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<CodeBlocks_layout_file>
+	<FileVersion major="1" minor="0" />
+	<ActiveTarget name="Debug" />
+	<File name="main.cpp" open="1" top="1" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="757" topLine="16" />
+		</Cursor>
+	</File>
+</CodeBlocks_layout_file>

histogram.cpp

@@ -0,0 +1,34 @@
+#include "histogram.h"
+#include <vector>
+
+using namespace std;
+
+void find_minmax(const vector<double>& numbers, double& min, double& max) {
+    min = numbers[0];
+    max = numbers[0];
+    for (float x : numbers) {
+        if (x < min) min = x;
+        else if (x > max) max = x;
+    }
+}
+
+vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count) {
+    double min, max;
+    find_minmax(numbers, min, max);
+
+    float k = (max - min) / bin_count;
+    vector<size_t> bins(bin_count, 0);
+
+    for (double number : numbers) {
+        bool flag = false;
+        for (size_t j = 0; (j < bin_count && !flag); j++) {
+            if (number >= (min + k * j) && number < (min + k * (j + 1))) {
+                bins[j]++;
+                flag = true;
+            }
+        }
+        if (!flag) bins[bin_count - 1]++;
+    }
+
+    return bins;
+}

histogram.h

@@ -0,0 +1,4 @@
+#pragma once
+#include <vector>
+
+std::vector<size_t> make_histogram(const std::vector<double>& numbers, size_t bin_count);

main.cpp

@@ -1,6 +1,6 @@
 #include <iostream>
-#include <vector>
-
+#include "histogram.h"
+#include "text.h"
 
 using namespace std;
 
@@ -33,65 +33,6 @@ Input input_data() {
     return in;
 }
 
-void find_minmax(const vector<double>& numbers, double& min, double& max) {
-    min = numbers[0];
-    max = numbers[0];
-    for (float x : numbers) {
-        if (x < min) min = x;
-        else if (x > max) max = x;
-    }
-}
-
-vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count) {
-    double min, max;
-    find_minmax(numbers, min, max);
-
-    float k = (max - min) / bin_count;
-    vector<size_t> bins(bin_count, 0);
-
-    for (double number : numbers) {
-        bool flag = false;
-        for (size_t j = 0; (j < bin_count && !flag); j++) {
-            if (number >= (min + k * j) && number < (min + k * (j + 1))) {
-                bins[j]++;
-                flag = true;
-            }
-        }
-        if (!flag) bins[bin_count - 1]++;
-    }
-
-    return bins;
-}
-
-void show_histogram_text(const vector<size_t>& bins) {
-    const size_t SCREEN_WIDTH = 80;
-    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
-
-    size_t max_count = 0;
-    for (size_t count : bins) {
-        if (count > max_count) {
-            max_count = count;
-        }
-    }
-
-    for (size_t bin : bins) {
-        if (bin < 100) cout << " ";
-        if (bin < 10) cout << " ";
-        cout << bin << "|";
-
-        size_t height = bin;
-        if (max_count > MAX_ASTERISK) {
-            if (max_count != bin)
-                height = MAX_ASTERISK * (static_cast<float>(bin) / max_count);
-            else
-                height = MAX_ASTERISK;
-        }
-
-        for (size_t i = 0; i < height; i++) cout << "*";
-        cout << "\n";
-    }
-}
-
 int main() {
     auto in = input_data();
     auto bins = make_histogram(in.numbers, in.bin_count);

text.cpp

@@ -0,0 +1,33 @@
+#include "text.h"
+#include <iostream>
+
+using namespace std;
+
+void show_histogram_text(const vector<size_t>& bins) {
+    const size_t SCREEN_WIDTH = 80;
+    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
+
+    size_t max_count = 0;
+    for (size_t count : bins) {
+        if (count > max_count) {
+            max_count = count;
+        }
+    }
+
+    for (size_t bin : bins) {
+        if (bin < 100) cout << " ";
+        if (bin < 10) cout << " ";
+        cout << bin << "|";
+
+        size_t height = bin;
+        if (max_count > MAX_ASTERISK) {
+            if (max_count != bin)
+                height = MAX_ASTERISK * (static_cast<float>(bin) / max_count);
+            else
+                height = MAX_ASTERISK;
+        }
+
+        for (size_t i = 0; i < height; i++) cout << "*";
+        cout << "\n";
+    }
+}

text.h

@@ -0,0 +1,4 @@
+#pragma once
+#include <vector>
+
+void show_histogram_text(const std::vector<size_t>& bins);