From 80614e6fbbe57fc95d3edbcb02740b40670787be Mon Sep 17 00:00:00 2001
From: Alexander Zhirov <alexander@zhirov.website>
Date: Mon, 4 Oct 2021 14:38:08 +0300
Subject: [PATCH] minor fixes

---
 lesson_4/exercises.cpp | 17 +++++++++++++++--
 lesson_4/exercises.hpp |  2 --
 lesson_4/main.cpp      |  2 +-
 lesson_4/templates.hpp | 15 +++++----------
 4 files changed, 21 insertions(+), 15 deletions(-)

diff --git a/lesson_4/exercises.cpp b/lesson_4/exercises.cpp
index cebd20c..eab21dd 100644
--- a/lesson_4/exercises.cpp
+++ b/lesson_4/exercises.cpp
@@ -5,8 +5,15 @@
  *      Author: alexander
  */
 
-#include "exercises.hpp"
+#include <vector>
+#include <list>
 #include <math.h>
+#include <algorithm>
+
+#include "exercises.hpp"
+#include "templates.hpp"
+
+using namespace std;
 
 void exercise_1()
 {
@@ -21,12 +28,16 @@ void exercise_1()
     insert_sorted(v, newIntValue);
     print(v);                             // -9 -9 -4 -3 3 3 4 6 8 9 10
 
+    cout << endl;
+
     list<double> l(size);
     generator(l, -10.0, 10.0);
     l.sort();
     print(l);                             // -9.31992 -6.76971 -5.98545 -2.1297 -1.9722 -0.292701 0.715274 3.43089 4.35249 9.45377
     insert_sorted(l, newDoubleValue);
     print(l);                             // -9.31992 -6.76971 -5.98545 -2.1297 -1.9722 -0.292701 0.715274 2.2 3.43089 4.35249 9.45377
+
+    cout << endl;
 }
 
 void exercise_2()
@@ -39,10 +50,12 @@ void exercise_2()
     print(v);                                                          // 1-ый вектор - печать исходного вектора
     copy(v.begin(), v.end(), ostream_iterator<int> { cout, " " });     // 2-ой вектор - печать целочисленного вектора
 
+    cout << endl;
+
     for_each(v.begin(), v.end(), [&](const double &i)
     {
         error += pow(i - static_cast<int>(i), 2);
     });
 
-    cout << endl << error << endl;
+    cout << endl << "Ошибка между цифровым и аналоговым сигналом равна " << error << endl;
 }
diff --git a/lesson_4/exercises.hpp b/lesson_4/exercises.hpp
index 5fad107..6b619b3 100644
--- a/lesson_4/exercises.hpp
+++ b/lesson_4/exercises.hpp
@@ -7,7 +7,5 @@
 
 #pragma once
 
-#include "templates.hpp"
-
 void exercise_1();
 void exercise_2();
diff --git a/lesson_4/main.cpp b/lesson_4/main.cpp
index 118482b..43bb716 100644
--- a/lesson_4/main.cpp
+++ b/lesson_4/main.cpp
@@ -9,7 +9,7 @@
 
 int main()
 {
-//    exercise_1();
+    exercise_1();
     exercise_2();
 
     return 0;
diff --git a/lesson_4/templates.hpp b/lesson_4/templates.hpp
index 9de904e..093273d 100644
--- a/lesson_4/templates.hpp
+++ b/lesson_4/templates.hpp
@@ -8,20 +8,15 @@
 #pragma once
 
 #include <iostream>
-#include <vector>
 #include <random>
-#include <algorithm>
 #include <iterator>
-#include <list>
-
-using namespace std;
 
 template<template<typename, typename> class TContainer, typename TItem, typename TIterator, typename T>
 void generator(TContainer<TItem, TIterator> &c, const T &rangeStart, const T &rangeEnd)
 {
-    random_device rd;
-    mt19937 mersenne(rd());
-    uniform_real_distribution<double> urd(rangeStart, rangeEnd);
+    std::random_device rd;
+    std::mt19937 mersenne(rd());
+    std::uniform_real_distribution<double> urd(rangeStart, rangeEnd);
     generate(c.begin(), c.end(), [&]()
     {
         return urd(mersenne);
@@ -31,8 +26,8 @@ void generator(TContainer<TItem, TIterator> &c, const T &rangeStart, const T &ra
 template<template<typename, typename> class TContainer, typename TItem, typename TIterator>
 void print(const TContainer<TItem, TIterator> &c)
 {
-    copy(c.begin(), c.end(), ostream_iterator<TItem> { cout, " " });
-    cout << endl;
+    copy(c.begin(), c.end(), std::ostream_iterator<TItem> { std::cout, " " });
+    std::cout << std::endl;
 }
 
 template<template<typename, typename> class TContainer, typename TItem, typename TIterator>