diff --git a/Histogram/histogram.cpp b/Histogram/histogram.cpp
index fc209c4..01b1a10 100644
--- a/Histogram/histogram.cpp
+++ b/Histogram/histogram.cpp
@@ -27,7 +27,7 @@ std::vector<size_t> make_histogram(const std::vector<double>& numbers, size_t bi
     double min, max;
     find_minmax(numbers, min, max);
     if (max == min) {
-        return bins; // ���������� ������ �������, ��� ��� ����������� �� ����� ���� ���������
+        return bins; // ���������� ������ �������, find��� ��� ����������� �� ����� ���� ���������
     }
     double bin_width = (max - min) / bin_count;
     for (double number : numbers) {
diff --git a/Histogram/histogram.h b/Histogram/histogram.h
index 8b13789..1c2e056 100644
--- a/Histogram/histogram.h
+++ b/Histogram/histogram.h
@@ -1 +1,4 @@
-
+#pragma once
+#include <vector>
+size_t find_minmax(const std::vector<double>& numbers, double& min, double& max);
+std::vector<size_t> make_histogram(const std::vector<double>& numbers, size_t bin_count);