Data Types in C++

Muhammad Magdi

Data Types

Data Type Description
int Small integer number
double
 Large real number
long long Large integer number
string A sequence of characters (word)
char A single character
bool Boolean number (0 or 1)
 

URI 1008 - Salary

URI 1008 - Salary

[Problem Summary]

  • Given:
    • integer number representing employee's number.
    • integer number representing the number of hours he worked.
    • real number representing the amount of money he takes per hour.
  • Print a report containing his number and the total money he should take rounded to exactly 2 decimal places.

URI 1008 - Salary

[Solution]

#include <iostream>
#include <iomanip>

using namespace std;

int main() {
  int id, hours;
  double rate;
  cin >> id >> hours >> rate;
  cout << fixed << setprecision(2);
  cout << "NUMBER = " << id << endl;
  cout << "SALARY = U$ " << hours * rate << endl;  
  return 0;
}

URI 1008 - Salary

[Notes]

  • In order to tell "cout" that we need only 2 places after the decimal point, we used "setprecision(2)".
  • "setprecision()" is in the "iomanip" library so we had to #include it.
  • the line:
    "cout << fixed << setprecision(2);" doesn't print anything, it only tells "cout" how it should work with real numbers.

URI 1002 - Area of a Circle

URI 1002 - Area of a Circle

[Problem Summary]

  • Given:
    • A real number representing
      the radius of a circle.
  • Print:
    • The message "A=" followed by
      the area of that circle with 4 places
      after the decimal point      .
Area = π*Radius^2

URI 1002 - Area of a Circle

[Solution]

#include <iostream>
#include <iomanip>

using namespace std;


int main() {
  double PI = 3.14159;
  double radius;
  cin >> radius;
  cout << fixed << setprecision(4);
  cout << "A=" << PI * radius * radius << endl;
  return 0;
}

Assignment

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Data Types

By Muhammad Magdi

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Data Types

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