From 7b5a69c25f812fab4ba2594cbf85b94f3ba86a5d Mon Sep 17 00:00:00 2001
From: "Nikolay (KrivobokovNS)" <KrivobokovNS@mpei.ru>
Date: Thu, 21 Aug 2025 14:09:38 +0300
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---
 histogram_internal.h | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 histogram_internal.h

diff --git a/histogram_internal.h b/histogram_internal.h
new file mode 100644
index 0000000..914ebbb
--- /dev/null
+++ b/histogram_internal.h
@@ -0,0 +1,7 @@
+#ifndef HISTOGRAM_INTERNAL_H_INCLUDED
+#define HISTOGRAM_INTERNAL_H_INCLUDED
+#include <vector>
+
+void find_minmax(const std::vector<double>& numbers, double& min, double& max);
+
+#endif // HISTOGRAM_INTERNAL_H_INCLUDED