Зміст курсу

Introduction to C++

1. Basics

2. Variables

Types of Variables Identifiers User Input Strings Simple Math Not Simple Math Increment (Prefix and Postfix)Constant Challenge

3. Conditional Statements

Booleans If Expression More Logical Operators Else Expression Else If Expression Short Forms Challenge Switch Statement The Keyword Default

4. Loops

While Loop Do/While Loop For Loop Break/Continue Statements

5. Intro to Arrays

Basic Concept of the Array Loops in Arrays Manipulations with Arrays Challenge

Simple Math

To perform arithmetic operations on variables and values C++ supports the following arithmetic operators:

Let’s try:


              12345
            
int sum = 10 + 3; // 13
int dif = 10 - 3; // 7
int mul = 10 * 3; // 30
int div = 10 / 3; // 3
int mod = 10 % 3; // 1

By division, any remainder was dropped since we assign the result to the int variable which doesn’t contain any decimals.

You can use all operations above to perform calculations on values, variables, or between variable and value:


              123
            
double a = 32 + 13;    // 45 
double b = a + 25;     // 45 + 25 = 70
double c = a + b;      // 70 + 45 = 115

Завдання

Robin has 18$ and Ted has 12$. How much money has each of them in average?

Calculate the sum of their money and assign it to the variable sum.
Divide the sum by 2 (number of people) to find the average and assign the result to the variable avr.
Print the variable avr.

Please, don’t forget about semicolon ; at the end of lines.

Завдання

Robin has 18$ and Ted has 12$. How much money has each of them in average?

Calculate the sum of their money and assign it to the variable sum.
Divide the sum by 2 (number of people) to find the average and assign the result to the variable avr.
Print the variable avr.

Please, don’t forget about semicolon ; at the end of lines.

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

Все було зрозуміло?

Секція 2. Розділ 5

Simple Math

To perform arithmetic operations on variables and values C++ supports the following arithmetic operators:

Let’s try:


              12345
            
int sum = 10 + 3; // 13
int dif = 10 - 3; // 7
int mul = 10 * 3; // 30
int div = 10 / 3; // 3
int mod = 10 % 3; // 1

By division, any remainder was dropped since we assign the result to the int variable which doesn’t contain any decimals.

You can use all operations above to perform calculations on values, variables, or between variable and value:


              123
            
double a = 32 + 13;    // 45 
double b = a + 25;     // 45 + 25 = 70
double c = a + b;      // 70 + 45 = 115

Завдання

Robin has 18$ and Ted has 12$. How much money has each of them in average?

Calculate the sum of their money and assign it to the variable sum.
Divide the sum by 2 (number of people) to find the average and assign the result to the variable avr.
Print the variable avr.

Please, don’t forget about semicolon ; at the end of lines.

Завдання

Robin has 18$ and Ted has 12$. How much money has each of them in average?

Calculate the sum of their money and assign it to the variable sum.
Divide the sum by 2 (number of people) to find the average and assign the result to the variable avr.
Print the variable avr.

Please, don’t forget about semicolon ; at the end of lines.

Все було зрозуміло?

Секція 2. Розділ 5

Simple Math

To perform arithmetic operations on variables and values C++ supports the following arithmetic operators:

Let’s try:


              12345
            
int sum = 10 + 3; // 13
int dif = 10 - 3; // 7
int mul = 10 * 3; // 30
int div = 10 / 3; // 3
int mod = 10 % 3; // 1

By division, any remainder was dropped since we assign the result to the int variable which doesn’t contain any decimals.

You can use all operations above to perform calculations on values, variables, or between variable and value:


              123
            
double a = 32 + 13;    // 45 
double b = a + 25;     // 45 + 25 = 70
double c = a + b;      // 70 + 45 = 115

Завдання

Robin has 18$ and Ted has 12$. How much money has each of them in average?

Calculate the sum of their money and assign it to the variable sum.
Divide the sum by 2 (number of people) to find the average and assign the result to the variable avr.
Print the variable avr.

Please, don’t forget about semicolon ; at the end of lines.

Завдання

Robin has 18$ and Ted has 12$. How much money has each of them in average?

Calculate the sum of their money and assign it to the variable sum.
Divide the sum by 2 (number of people) to find the average and assign the result to the variable avr.
Print the variable avr.

Please, don’t forget about semicolon ; at the end of lines.

Все було зрозуміло?

To perform arithmetic operations on variables and values C++ supports the following arithmetic operators:

Let’s try:


              12345
            
int sum = 10 + 3; // 13
int dif = 10 - 3; // 7
int mul = 10 * 3; // 30
int div = 10 / 3; // 3
int mod = 10 % 3; // 1

By division, any remainder was dropped since we assign the result to the int variable which doesn’t contain any decimals.

You can use all operations above to perform calculations on values, variables, or between variable and value:


              123
            
double a = 32 + 13;    // 45 
double b = a + 25;     // 45 + 25 = 70
double c = a + b;      // 70 + 45 = 115

Завдання

Robin has 18$ and Ted has 12$. How much money has each of them in average?

Calculate the sum of their money and assign it to the variable sum.
Divide the sum by 2 (number of people) to find the average and assign the result to the variable avr.
Print the variable avr.

Please, don’t forget about semicolon ; at the end of lines.

Секція 2. Розділ 5