diff --git a/main.cpp b/main.cpp
index b40bd31..ded870c 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,85 +1,5 @@
+#include "histogram.h"
 #include <iostream>
-#include <vector>
-#include <cmath>
-#include <algorithm>
-using namespace std;
-
-struct Input {
-    vector<double> numbers;
-    size_t bin_count{};
-    size_t number_count;
-};
-
-void find_minmax(const vector<double>& numbers, double& min, double& max) {
-    if (numbers.empty()) return;
-
-    min = numbers[0];
-    max = numbers[0];
-    for (double num : numbers) {
-        if (num < min) min = num;
-        if (num > max) max = num;
-    }
-}
-
-vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count) {
-    if (numbers.empty() || bin_count == 0) return {};
-
-    double min, max;
-    find_minmax(numbers, min, max);
-
-    vector<size_t> bins(bin_count);
-    double bin_size = (max - min) / bin_count;
-
-    for (double num : numbers) {
-        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 <= num && num < hi) {
-                bins[j]++;
-                found = true;
-            }
-        }
-        if (!found) {
-            bins[bin_count - 1]++;
-        }
-    }
-
-    return bins;
-}
-
-Input input_data() {
-    Input in;
-    cin >> in.number_count;
-
-    in.numbers.resize(in.number_count);
-    for (size_t i = 0; i < in.number_count; i++) {
-        cin >> in.numbers[i];
-    }
-
-    cin >> in.bin_count;
-    return in;
-}
-
-void show_histogram_text(const vector<size_t>& bins, size_t max_width = 80) {
-    if (bins.empty()) return;
-
-    size_t max_count = *max_element(bins.begin(), bins.end());
-    if (max_count == 0) return;
-
-    for (size_t count : bins) {
-        if (count < 100) cout << " ";
-        if (count < 10) cout << " ";
-
-        cout << count << "|";
-
-        size_t bar_length = (count * max_width) / max_count;
-        for (size_t i = 0; i < bar_length; ++i) {
-            cout << "*";
-        }
-        cout << endl;
-    }
-}
 
 int main() {
     auto in = input_data();