C++/Data Type/Int

addition operator in cout

<source lang="cpp">

1. include <iostream>

using namespace std; int main(void) {

  int total, added, dropped;
  cout << "Enter total: ";
  cin >> total;
  cout << "Enter added: ";
  cin >> added;
  total = total + added;
  cout << "Enter dropped ";
  cin >> dropped;
  total -= dropped;
  cout << "Number: " << total << endl;
  return 0;

}

 </source>

Computes the lowest common denominator.

<source lang="cpp">

1. include <iostream>

using namespace std; int main() {

 int a, b, d, min;
 cout << "Enter two numbers: ";
 cin >> a >> b;
 min = a > b ? b : a;
 for(d = 2; d<min; d++) 
   if(((a%d)==0) && ((b%d)==0)) 
      break;
 if(d==min) {
   cout << "No common denominators\n";
   return 0;
 }
 cout << "The lowest common denominator is " << d << ".\n";
 return 0;

}

 </source>

convert string (char) to int

<source lang="cpp">

1. include <iostream>
2. include <stdlib.h>

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

  char letter;
  int count = 0;
  int line_limit;
  line_limit = atoi(argv[1]);
  while ((letter = cin.get()) != -1){
      cout.put(letter);
      if ((letter == "\n") && (++count == line_limit))
        break;
    }

}

 </source>

cout: output INT_MIN, INT_MAX and UINT

<source lang="cpp">

1. include <iostream>
2. include <climits> // Definition of INT_MIN, ...

using namespace std; int main() {

 cout << "Range of types int and unsigned int" << endl;
 cout << "Type   Minimum    Maximum" << endl;
 cout << "int" << INT_MIN << "   " <<  INT_MAX << endl;
 cout << "unsigned int" <<  " 0 " << UINT_MAX << endl;
 return 0;

}

 </source>

Define, input and output int value

<source lang="cpp">

1. include <iostream>

using namespace std; int main() {

 int b, e, r;
 cout << "Enter base: ";
 cin >> b;
 cout << "Enter exponent: ";
 cin >> e;
 r = 1;
 for( ; e; e--) 
   r = r * b;
 
 cout << "Result: " << r;
 return 0;

}

 </source>

Divided by int

<source lang="cpp">

1. include <iostream>

using namespace std; int main(void) {

  int firstOp = 10, secondOp = 4;
  float result = firstOp / secondOp;
  cout << firstOp << " / " << secondOp << " = " << result;
  return 0;

}

 </source>

Inputting int Values for Multiple Variables

<source lang="cpp">

1. include <iostream>

using namespace std; int main(void) {

  int myWeight, myHeight;
  string myName;
  cout << "Enter your name: ";
  cin >> myName;
  cout << "Enter your weight in pounds: ";
  cin >> myWeight;
  cout << "Enter your height in inches: ";
  cin >> myHeight;
  cout << "Your name score is " << myName << "\n";
  cout << "Your weight in pounds is " << myWeight << "\n";
  cout << "Your height in inches is " << myHeight << "\n";
  return 0;

}

 </source>

Integer pointer

<source lang="cpp">

1. include <iostream>

using std::cout; using std::endl; int main() {

 int x = 5;
 // "p" points to "x"
 int* p = &x;
 cout << "x = " << x << endl;
 // change the value of "x" through "p"
 *p = 6;
 cout << "x = " << x << endl;
 return 0;

}

 </source>

Int value operations

<source lang="cpp">

1. include <iostream>
2. include <string>

using namespace std; int main(void) {

  int total, added, dropped, tuition;
  cout << "Enter total: ";
  cin >> total;
  cout << "Enter add: ";
  cin >> added;
  total = total + added;
  cout << "Enter dropped? ";
  cin >> dropped;
  total -= dropped;
  cout << "Total number: " << total << endl;
  tuition = (total + dropped) * 72;
  cout << "Total tuition: $" << tuition << endl;
  cout << "Average tuition: $" 
       << (float) tuition / total;
  return 0;

}

 </source>

Using atoi: convert string to int

<source lang="cpp">

1. include <iostream>
2. include <stdlib.h>

using namespace std; int main() {

  int i = atoi( "2593" );
  cout << "The string \"2593\" converted to int is " << i
       << "\nThe converted value minus 593 is " << i - 593 
       << endl;
  return 0;

}

 </source>

Using cin Object to Read Integer Values from Keyboard

<source lang="cpp">

1. include <iostream>

using namespace std; int main(){

  int a = 0, b = 0, c = 0;
  cout << "Enter values for a, b, and c: ";
  cin >> a >> b >> c;
  cout << a << " " << b << " " << c << endl;
  return 0;

}

 </source>