Tasks: arithmetic operations in C ++

If you have already read the articleArithmetic operations in C ++ you can begin to practice.

1. Common task: Given the four-digit number (for example 5678), display the numbers in reverse order of which is the number of member. That is, we should see on the screen 8765. Tip: to take from among the individual numbers, should be applied to the modulo 10.

Show code

[crayon-69d672df3b035503351600/]
Result:

2. The site of almost any commercial bank, you can find the so-called Deposit calculator, which allows people to, not wishing to go into the formula for calculating interest rates, to know how much they will receive. To do this, they just fill in certain fields, press the button and see the result. This is a simple program, which has already been able to write each one of you. So, a task: The user enters the amount of the deposit and the number of months of keeping money in the bank. It is necessary to calculate and show the screen profit from the deposit in a month, for the entire term of the deposit, and the total amount payable at the end of the period. Currency let it be – U.S. dollar. Interest rate – 5% APR. The formula for calculating percent per month– SumDeposit * (interest rate / 100) / daysperyear * dayspermonths.

Show code

#include <iostream>
using namespace std;

int main()
{
setlocale(LC_ALL, "rus");

float sumDeposit = 0; // сумма депозита
int amountMonth = 0; // количество месяцев
float profit = 0; // прибыль
float annualRate = 5; // пять процентов годовых
int daysInYear = 365;
int daysInMonth = 30;

cout << "Введите сумму депозита в долларах: ";
	cin >> sumDeposit;
cout << "Введите количество месяцев: ";
	cin >> amountMonth;

cout << "\nРасчет\n";
cout << "=======================================\n";
cout << "Проценты в месяц: ";
// проводим расчет по формуле и записываем в переменную profit
profit = sumDeposit * (annualRate / 100)  / daysInYear * daysInMonth;

cout << sumDeposit << " * " << annualRate << "%  / " << daysInYear
	 << " * " << daysInMonth << " = " << profit << " $" << endl;

cout << "Проценты за весь срок: ";
// умножаем % за 1 месяц на весь срок депозита и записываем в profit
profit *= amountMonth;
cout << profit << " $"  << endl;

cout << "Общая сумма выплаты в конце срока: "
	 << sumDeposit + profit  << " $";
cout << endl << endl;

return 0;
}

#include <iostream>

using namespace std;

int main()

{

setlocale(LC_ALL, "rus");

float sumDeposit = 0; // сумма депозита

int amountMonth = 0; // количество месяцев

float profit = 0; // прибыль

float annualRate = 5; // пять процентов годовых

int daysInYear = 365;

int daysInMonth = 30;

cout << "Введите сумму депозита в долларах: ";

cin >> sumDeposit;

cout << "Введите количество месяцев: ";

cin >> amountMonth;

cout << "\nРасчет\n";

cout << "=======================================\n";

cout << "Проценты в месяц: ";

// проводим расчет по формуле и записываем в переменную profit

profit = sumDeposit * (annualRate / 100) / daysInYear * daysInMonth;

cout << sumDeposit << " * " << annualRate << "% / " << daysInYear

<< " * " << daysInMonth << " = " << profit << " $" << endl;

cout << "Проценты за весь срок: ";

// умножаем % за 1 месяц на весь срок депозита и записываем в profit

profit *= amountMonth;

cout << profit << " $" << endl;

cout << "Общая сумма выплаты в конце срока: "

<< sumDeposit + profit << " $";

cout << endl << endl;

return 0;

}

Result:

[crayon-69d672df3b045852017580/]

Result:

Perhaps you have any questions about the solution of tasks – ask them in the comments!

156 thoughts on “Tasks: arithmetic operations in C ++”

raf says:
21.12.2016 at 13:29
tags in the code does not correctly display some reason.
#include
using namespace std;
int main()
{
int a;
cout <> a;
cout << a << a/10 << a/100 << a/1000 << endl;
return 0;
}
Reply
1. Mahach86 says:
  04.01.2017 at 16:39
  The mistake at this point
  C++
  cout a;
  1
  cout a;
  Reply
Alexander says:
13.03.2017 at 23:58
#include
using namespace std;
int main()
{
int a;
cout <> a;
cout << "Your mirror namber is:";
for (int x = 1; x <= a; x++) // cycle allows to draw in the return line, any number entered
{
cout << a % 10;
a /= 10;
};
//int b = a % 10, c = ((a-b) % 100)/10, d = ((a-b-c) % 1000)/100, f = ((a-b-c-d) % 10000)/1000; (Mathematics embodiment only for 4-digit number)
//cout << "Mirror namber is:" << b << c << d << f;
system("pause");
return 0;
}
Reply

#include 
using namespace std;

int main()
{
	int a;
    cout <> a;
	cout << "Your mirror namber is:";
	for (int x = 1; x <= a; x++)   // цыкл позволяет нарисовать в обратку любое введенное число
	{
		cout << a % 10;
		a /= 10;
	};

	//int b = a % 10, c = ((a-b) % 100)/10, d = ((a-b-c) % 1000)/100, f = ((a-b-c-d) % 10000)/1000;  (математический вариант только для 4-хзначного числа)
	//cout << "Mirror namber is:" << b << c << d << f;

	system("pause");
	return 0;
}

#include

using namespace std;

int main()

{

int a;

cout <> a;

cout << "Your mirror namber is:";

for (int x = 1; x <= a; x++) // цыкл позволяет нарисовать в обратку любое введенное число

{

cout << a % 10;

a /= 10;

};

//int b = a % 10, c = ((a-b) % 100)/10, d = ((a-b-c) % 1000)/100, f = ((a-b-c-d) % 10000)/1000; (математический вариант только для 4-хзначного числа)

//cout << "Mirror namber is:" << b << c << d << f;

system("pause");

return 0;

}

Alexander says:
14.03.2017 at 00:17
strangely, incorrect code is displayed. =(
Reply
1. Olej says:
  21.03.2017 at 11:17
  Nothing strange:
  1. Do not write your comments in the code!
  2. Comments are not for…
  3. And your code here no one needs.

Yuliana says:
01.04.2017 at 08:00
tell ,you are welcome, why at the end of the program 2 fold “endl;” After all ,if I want to go to a new line only once , he should take it only once , but for some reason he does not perceive it at all. Only if the double write endl;
Reply
Artyom says:
08.05.2017 at 09:50
The task №1 there is a much easier way to!
#include
using namespace std;
int main()
{
setlocale(LC_ALL, “rus”);
int a1 = 5;
int a2 = 6;
int a3 = 7;
int a4 = 8;
cout << "Число наоборот:" << a4 << a3 << a2 << A1 << endl;
system("pause");
return 0;
}
Reply
1. Denis, Artyom moron says:
  30.06.2017 at 13:58
  You are a fool…
  This is a joke and! We need to do a certain number of alternating contrary, Your version of this is the task for the first lesson will!
  Reply

In calculating percent in the second assignment gives 0.

#include 

using namespace std;

int main()
{
     setlocale(LC_ALL, "rus");

    float deposite = 0;//сумма депозита
    int value_of_month;//количество месяцев
    float profit = 0;//прибыль в месяц
    int Day_In_Month = 30;
    int Day_In_Year = 365;
    int percent_per_year = 5;

    cout << "Введите сумму депозита - ";
    cout <> deposite;
    cout <> value_of_month;

    cout << endl;

    cout << "Годовой процент с депозита равен " << percent_per_year << "%" << endl;

    cout << endl;

    profit = deposite * (percent_per_year / 100) / Day_In_Year * Day_In_Month;
    cout << "Прибыль в месяц с депозита " << profit << endl;
    profit *= value_of_month;
    cout << "Прибыль за весь срок депозита " << profit << endl;
    profit += deposite;
    cout << "Сумма выплаты в конце срока " << profit << endl;

    cout << endl;

    return 0;
}

#include

using namespace std;

int main()

{

setlocale(LC_ALL, "rus");

float deposite = 0;//сумма депозита

int value_of_month;//количество месяцев

float profit = 0;//прибыль в месяц

int Day_In_Month = 30;

int Day_In_Year = 365;

int percent_per_year = 5;

cout << "Введите сумму депозита - ";

cout <> deposite;

cout <> value_of_month;

cout << endl;

cout << "Годовой процент с депозита равен " << percent_per_year << "%" << endl;

cout << endl;

profit = deposite * (percent_per_year / 100) / Day_In_Year * Day_In_Month;

cout << "Прибыль в месяц с депозита " << profit << endl;

profit *= value_of_month;

cout << "Прибыль за весь срок депозита " << profit << endl;

profit += deposite;

cout << "Сумма выплаты в конце срока " << profit << endl;

cout << endl;

return 0;

}

Anstasiya says:
28.07.2017 at 15:03
Have you solved this issue??
As I understand it, there are some specific nuances in working with the float data type.
Reply
Anstasiya says:
28.07.2017 at 15:50
In case you haven't resolved this issue yet.
We divide the number 5, in our case it is the interest rate, you specified it as an integer (int). for the program to work, just give it a float data type
Reply
Anstasiya says:
28.07.2017 at 15:57
Overall your code was clumsy., I corrected it a little
#include “stdafx.h”
#include
using namespace std;
int main()
{
setlocale(LC_ALL, “rus”);
float deposite = 0;//deposit amount
int value_of_month = 0;//number of months
float profit = 0;//profit per month
int Day_In_Month = 30;
int Day_In_Year = 365;
float percent_per_year = 5;
cout <> deposit;
cout <> value_of_month;
cout << endl;
cout << "Годовой процент с депозита равен " << percent_per_year << "%" << endl;
cout << endl;
profit = deposite * (percent_per_year / 100) / Day_In_Year * Day_In_Month;
cout << "Прибыль в месяц с депозита " << profit << endl;
profit *= value_of_month;
cout << "Прибыль за весь срок депозита " << profit << endl;
profit += deposite;
cout << "Сумма выплаты в конце срока " << profit << endl;
cout << endl;
system("pause");
return 0;
}
Reply

Bogdan Okman says:
11.08.2017 at 11:21
first task the code is stupid. It was possible to do it through a loop and also have the user enter the numbers he wants to expand
#include
#include
#include
#include
using namespace std;
int main(int argc, char const *argv[]) {
int value;
cout <> value;
while (value !=0)
{
cout << value % 10;
value /= 10;
}
return 0;
}
Reply

first task the code is stupid. It was possible to do it through a loop and also have the user enter the numbers he wants to expand

#include 
#include 
#include 
#include 

using namespace std;
int main(int argc, char const *argv[]) {

   int value;
   cout <> value;
            while (value !=0)

 {
            cout << value % 10;
            value /= 10;
  }
 return 0;
}

#include

using namespace std;

int main(int argc, char const *argv[]) {

int value;

cout <> value;

while (value !=0)

{

cout << value % 10;

value /= 10;

}

return 0;

}

Tasks: arithmetic operations in C ++

156 thoughts on “Tasks: arithmetic operations in C ++”

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