diff --git a/LR3/histogram.cpp b/LR3/histogram.cpp
new file mode 100644
index 0000000..0930495
--- /dev/null
+++ b/LR3/histogram.cpp
@@ -0,0 +1,42 @@
+#include "histogram.h"
+
+
+using namespace std;
+
+void
+find_minmax(vector<double> numbers, double& min, double& max) {
+    min = numbers[0];
+    max = numbers[0];
+    for (double x : numbers) {
+        if (x < min) {
+            min = x;
+        }
+        else if (x > max) {
+            max = x;
+        }
+    }
+}
+
+vector<size_t>
+make_histogram(vector<double> numbers, int bin_count){
+    vector<size_t> bins(bin_count);
+    double min = numbers[0];
+    double max = numbers[0];
+    find_minmax(numbers, min, max);
+    double bin_size = (max - min) / bin_count;
+    for (auto x: numbers) {
+        bool found = false;
+        for (size_t j = 0; (j < bin_count - 1) && !found; j++) {
+            auto lo = min + j * bin_size;
+            auto hi = min + (j + 1) * bin_size;
+            if ((lo <= x) && (x < hi)) {
+                bins[j]++;
+                found = true;
+            }
+        }
+        if (!found) {
+            bins[bin_count - 1]++;
+        }
+    }
+    return bins;
+}
diff --git a/LR3/histogram.h b/LR3/histogram.h
new file mode 100644
index 0000000..f1dd6c6
--- /dev/null
+++ b/LR3/histogram.h
@@ -0,0 +1,10 @@
+#ifndef HISTOGRAM_H_INCLUDED
+#define HISTOGRAM_H_INCLUDED
+#include <vector>
+
+std::vector<size_t>
+make_histogram(std::vector<double> numbers, size_t bin_count);
+
+
+
+#endif // HISTOGRAM_H_INCLUDED
diff --git a/LR3/text.cpp b/LR3/text.cpp
new file mode 100644
index 0000000..9a2b870
--- /dev/null
+++ b/LR3/text.cpp
@@ -0,0 +1,14 @@
+#include "text.h"
+
+using namespace std;
+
+void
+show_histogram_text(vector<size_t> bins){
+    for(size_t count: bins){
+        if (count < 100) cout << " ";
+        if (count < 10) cout << " ";
+        cout << count << "|";
+    for(size_t i = 0; i < count; ++i) cout << "*";
+        cout << "\n";
+        }
+}
diff --git a/LR3/text.h b/LR3/text.h
new file mode 100644
index 0000000..bf84f23
--- /dev/null
+++ b/LR3/text.h
@@ -0,0 +1,9 @@
+#ifndef TEXT_H_INCLUDED
+#define TEXT_H_INCLUDED
+#include <iostream>
+#include <vector>
+using namespace std;
+void show_histogram_text(vector<size_t> bins);
+
+
+#endif // TEXT_H_INCLUDED