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chapter4qu
...
main
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79644bad85 |
5 changed files with 89 additions and 71 deletions
11
src/algo.cpp
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11
src/algo.cpp
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@ -0,0 +1,11 @@
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#include "algo.h"
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void bubble_sort_print_demo()
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{
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int demo[]{11, 14, 3, 18, 8, 17, 43, 6, 5, 4};
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double demo2[]{11.2, 14.3, 3.2, 18.6, 8.7, 17.9, 43.3, 12.3};
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std::string demo3[]{"hallo", "velo", "kekw", "imagin"};
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bubble_sort_print(sizeof(demo) / sizeof(demo[0]), demo);
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bubble_sort_print(sizeof(demo2) / sizeof(demo2[0]), demo2);
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bubble_sort_print(sizeof(demo3) / sizeof(demo3[0]), demo3);
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}
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55
src/algo.h
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55
src/algo.h
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@ -0,0 +1,55 @@
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#pragma once
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#include <iostream>
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#include <string>
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#include <iomanip>
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void bubble_sort_print_demo();
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template <typename T>
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struct TypeName
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{
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static const char *Get()
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{
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return typeid(T).name();
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}
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};
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template <>
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struct TypeName<std::string>
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{
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static const char *Get()
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{
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return "s";
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}
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};
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template <class T>
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void bubble_sort(int size, T *a)
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{
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for (int i = 0; i < size; i++)
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{
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for (int j = 0; j < size - 1 - i; j++)
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{
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if (a[j] > a[j + 1])
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{
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T temp{a[j]};
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a[j] = a[j + 1];
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a[j + 1] = temp;
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}
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}
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}
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};
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template <typename T>
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void bubble_sort_print(int size, T *a)
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{
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std::cout << std::left; // left justify output
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std::cout << "unsorted " << TypeName<T>::Get() << std::setw(10) << " Array: ";
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for (int i = 0; i < size; i++)
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std::cout << a[i] << ", ";
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std::cout << "\n";
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bubble_sort(size, a);
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std::cout << "sorted " << TypeName<T>::Get() << std::setw(12) << " Array: ";
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for (int i = 0; i < size; i++)
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std::cout << a[i] << ", ";
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std::cout << "\n\n";
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};
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16
src/io.cpp
16
src/io.cpp
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@ -1,6 +1,7 @@
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#include "io.h"
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#include <iostream>
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#include <iomanip>
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void add_two_numbers()
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{
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int a{read_number()};
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@ -25,6 +26,7 @@ void convert_char_to_ascii()
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std::cin >> c;
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std::cout << "You entered '" << c << "', which hass ASCII code " << static_cast<int>(c) << ".";
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}
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void print_type_size_bytes()
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{
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std::cout << std::left; // left justify output
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@ -36,5 +38,17 @@ void print_type_size_bytes()
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std::cout << std::setw(16) << "long long:" << sizeof(long long) << " bytes\n";
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std::cout << std::setw(16) << "float:" << sizeof(float) << " bytes\n";
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std::cout << std::setw(16) << "double:" << sizeof(double) << " bytes\n";
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std::cout << std::setw(16) << "long double:" << sizeof(long double) << " bytes\n";
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std::cout << std::setw(16) << "long double:" << sizeof(long double) << " bytes\n\n";
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}
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void string_demo()
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{
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using namespace std;
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cout << "Enter your full name: ";
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string name{};
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getline(cin >> ws, name);
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cout << "Enter your age: ";
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int age{};
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cin >> age;
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int letters{static_cast<int>(name.length())};
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cout << "Your age + length of name is: " << (letters + age) << "\n";
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}
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1
src/io.h
1
src/io.h
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@ -5,3 +5,4 @@ int read_number();
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void write_answer(int x);
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void convert_char_to_ascii();
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void print_type_size_bytes();
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void string_demo();
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73
src/main.cpp
73
src/main.cpp
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@ -1,77 +1,14 @@
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#include <iostream> // for std::cout
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#include "io.h"
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#include <cmath>
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#include "algo.h"
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// Definition of function main()
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double get_user_double()
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{
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std::cout << "Enter a double value: ";
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double x{};
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std::cin >> x;
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return x;
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}
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char get_user_operator()
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{
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std::cout << "Enter +, -, * or /: ";
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char x{};
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std::cin >> x;
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return x;
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}
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void print_result(double a, double b, char c)
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{
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double result{};
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switch (c)
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{
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case '+':
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result = a + b;
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break;
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case '-':
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result = a - b;
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break;
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case '*':
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result = a * b;
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break;
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case '/':
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result = a / b;
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break;
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default:
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return;
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}
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std::cout << a << ' ' << c << ' ' << b << " is " << result;
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}
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void task1()
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{
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double a{get_user_double()};
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double b{get_user_double()};
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char c{get_user_operator()};
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print_result(a, b, c);
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}
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long get_user_tower_height()
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{
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std::cout << "Enter the height of the tower in meters: ";
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long x{};
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std::cin >> x;
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return x;
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}
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void task2()
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{
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long tower_height{get_user_tower_height()};
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for (size_t i = 0; i < 6; i++)
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{
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double result{static_cast<double>(tower_height) - 9.8 * pow(static_cast<double>(i), 2) / 2};
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if (result <= 0.0)
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std::cout << "At " << i << " seconds, the ball is on the ground\n";
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else
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std::cout << "At " << i << " seconds, the ball is at height: " << result << " meters\n";
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}
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}
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int main()
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{
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// string_demo();
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// add_two_numbers();
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// convert_char_to_ascii();
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// print_type_size_bytes();
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// task1();
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task2();
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print_type_size_bytes();
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// bubble_sort_print_demo();
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return 0;
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}
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