c 2b 2b declare variable

1std::string str = "text";	// stores a string
2int    foo = 3;				// stores any integer
3float  bar = 3.14;			// stores 32 bit number
4double baz = 3.14159265;	// stores 64 bit number

1// operating with variables
2
3#include <iostream>
4using namespace std;
5
6int main ()
7{
8  // declaring variables:
9  int a, b;
10  int result;
11
12  // process:
13  a = 5;
14  b = 2;
15  a = a + 1;
16  result = a - b;
17
18  // print out the result:
19  cout << result;
20
21  // terminate the program:
22  return 0;
23}