From 0e045b574550447ec63be04417b4ee081f72ac51 Mon Sep 17 00:00:00 2001
From: unknown <KomarovYegA@mpei.ru>
Date: Thu, 1 May 2025 17:41:25 +0300
Subject: [PATCH] =?UTF-8?q?code:=20=D1=81=D0=BE=D0=B7=D0=B4=D0=B0=D0=BD=20?=
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---
 histogram.cpp | 109 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 histogram.cpp

diff --git a/histogram.cpp b/histogram.cpp
new file mode 100644
index 0000000..e5c32e6
--- /dev/null
+++ b/histogram.cpp
@@ -0,0 +1,109 @@
+#include "histogram.h"
+
+static void find_minmax(const std::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;
+    	}
+	}
+    return;
+}
+
+std::vector<size_t> make_histogram(const std::vector<double>& numbers, size_t& bin_count) {
+    double minn, maxn;
+    find_minmax(numbers, minn, maxn);
+    double bin_size = (maxn - minn) / bin_count;
+    std::vector<size_t> bins(bin_count, 0);
+    for (size_t i = 0; i < numbers.size(); i++) {
+        bool found = false;
+        for (size_t j = 0; (j < bin_count - 1) && !found; j++) {
+            auto lo = minn + j * bin_size;
+            auto hi = minn + (j + 1) * bin_size;
+            if ((numbers[i] >= lo) && (numbers[i] <= hi)) {
+                bins[j]++;
+                found = true;
+            }
+        }
+        if (!found) {
+            bins[bin_count - 1]++;
+        }
+    }
+    return bins;
+}
+
+void show_histogram_text(const std::vector<size_t> bins, size_t bin_count) {
+    size_t max_count = bins[0];
+    for (size_t i = 1; i < bin_count; i++) {
+        if (bins[i] > max_count) {
+            max_count = bins[i];
+        }
+    }
+
+    const size_t SCREEN_WIDTH = 80;
+    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
+
+
+    short space_count;
+
+    std::cerr << "\nHistogram:" << std::endl;
+
+    if (max_count <= MAX_ASTERISK) {
+        for (size_t i = 0; i < bin_count; i++) {
+            if (bins[i] < 10) {
+                space_count = 2;
+            } else if (bins[i] >= 10 && bins[i] < 100) {
+                space_count = 1;
+            } else if (bins[i] >= 100 && bins[i] < 1000) {
+                space_count = 0;
+            }
+
+
+
+            for (size_t k = 0; k < space_count; k++) {
+                std::cout << " ";
+            }
+
+            std::cout << bins[i];
+
+            std::cout << "|";
+
+
+            for (size_t j = 0; j < bins[i]; j++) {
+                std::cout << "*";
+            }
+
+            std::cout << "\n";
+        }
+    } else {
+        for (size_t i = 0; i < bin_count; i++) {
+            if (bins[i] < 10) {
+                space_count = 2;
+            } else if (bins[i] >= 10 && bins[i] < 100) {
+                space_count = 1;
+            } else if (bins[i] >= 100 && bins[i] < 1000) {
+                space_count = 0;
+            }
+
+
+            for (size_t k = 0; k < space_count; k++) {
+                std::cout << " ";
+            }
+
+            std::cout << bins[i];
+
+            std::cout << "|";
+
+            size_t height = static_cast<size_t>(MAX_ASTERISK * (static_cast<double>(bins[i]) / max_count));
+            for (size_t j = 0; j < height; j++) {
+                std::cout << "*";
+            }
+
+            std::cout << "\n";
+        }
+    }
+}