исходный вариант

lab1.cbp

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+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<CodeBlocks_project_file>
+	<FileVersion major="1" minor="6" />
+	<Project>
+		<Option title="lab1" />
+		<Option pch_mode="2" />
+		<Option compiler="gcc" />
+		<Build>
+			<Target title="Debug">
+				<Option output="bin/Debug/lab1" 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/lab1" 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>
+			<lib_finder disable_auto="1" />
+		</Extensions>
+	</Project>
+</CodeBlocks_project_file>

main.cpp

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+#include <iostream>
+#include <vector>
+#include <cmath>
+using namespace std;
+
+int main(){
+    const size_t SCREEN_WIDTH = 80;
+    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
+    size_t number_count;
+    cerr << "Enter amount of numbers \n";
+    cin >> number_count;
+    vector<double> numbers(number_count);
+    for (size_t i = 0; i < number_count; i++){
+        cerr << "Input number " << i+1 << endl;
+        cin >> numbers[i];
+    }
+    double minc, maxc;
+    minc = maxc = numbers[0];
+    for (size_t i = 1; i < number_count; i++ ){
+        if(numbers[i] < minc){
+            minc = numbers[i];
+        }
+        else if (numbers[i] > maxc){
+            maxc = numbers[i];
+        }
+    }
+    size_t bin_count;
+    cerr << "Input number of bins \n";
+    cin >> bin_count;
+    vector<size_t> bins(bin_count);
+    double bin_size = (maxc - minc) / bin_count;
+    size_t bin_max_size = 0;
+    for (size_t i = 0; i < number_count; i++) {
+        bool found = false;
+        for (size_t j = 0; (j < bin_count - 1) && !found; j++) {
+            auto lo = minc + j * bin_size;
+            auto hi = minc + (j + 1) * bin_size;
+            if ((lo <= numbers[i]) && (numbers[i] < hi)) {
+                bins[j]++;
+                found = true;
+                if (bins[j]> bin_max_size){
+                    bin_max_size = bins[j];
+                }
+            }
+        }
+        if (!found) {
+            bins[bin_count - 1]++;
+            if (bins[bin_count - 1]> bin_max_size){
+                    bin_max_size = bins[bin_count - 1];
+                }
+        }
+    }
+    size_t height;
+    for(int i = 0; i<bin_count; i++){
+        if(bins[i]<100){
+            cout<<" ";
+            if(bins[i]<10){
+                cout<<" ";
+            }
+        }
+        cout<<bins[i]<<"|";
+        if(bin_max_size >= MAX_ASTERISK){
+            height = floor(static_cast<double>(bins[i])*76.0f/static_cast<double>(bin_max_size));
+        } else {
+            height = bins[i];
+        }
+        for(int j = 0; j<height; j++){
+            cout<<"*";
+        }
+
+        cout<<endl;
+    }
+
+    return 0;
+}