diff --git a/LABA1.cpp b/LABA1.cpp
index 76ca3fb..8153d1b 100644
--- a/LABA1.cpp
+++ b/LABA1.cpp
@@ -20,14 +20,26 @@ input_data() {
     return in;
 };
 
+void FindMinMax(const vector<double>& marks, double & min, double & max) {
+    max = 0;
+    min = marks[0];
+    for (double x : marks) {
+        if (x > max) {
+            max = x;
+        }
+        if (x < min) {
+            min = x;
+        }
+    }
+};
+
 int main()
 {
     Input in = input_data();
     int VecSize = size(in.marks);
     double interval = 0, inp = 0, i = 0, min = 0, max = 0, scale = 1;
     vector <int> chart(in.NCharts);
-    min = *min_element(begin(in.marks), end(in.marks));
-    max = *max_element(begin(in.marks), end(in.marks));
+    FindMinMax(in.marks, min, max);
     interval = (max - min) / in.NCharts;
     for (int x : in.marks) {
         i = 0;