Little intro to data types:
#include <iostream> #include <string> using namespace std; int main() { int int_number = 2147483647; // 2^32 / 2 -1 = 2^31 -1 = 2147483648 -1 // -2^31 = -2147483648 long long_integer = 9223372036854775807; // 2^64 / 2 - 1= 2^63 -1 = 2147483648 -1 // -2^63 = -2147483648 float low_precision_big_float_number = 9223372036854775807; // 9.22337e+18 = 9.22337 *10^18 double high_precision_big_float_number = 9223372036854775807; // 9.22337e+18 = 9.22337 *10^18 //char are 8bit = 2^8 = 256 char letter_exclamation = 33; // this gets converted through ASCII table to the letter '!' char letter_A = 65; // this gets converted through ASCII table to the letter '!' string text = "this is a string, it's not included by default"; int converted_float = 3.21; cout << "Integer: " << int_number << endl; cout << "Long Integer: " << long_integer << endl; cout << "Overflow Integer: " << int_number + 1 << endl; cout << "Overflow Long Integer: " << long_integer +1 << endl; cout << "Low precision Big float: " << low_precision_big_float_number << endl; cout << "High precision Big float: " << high_precision_big_float_number << endl; // command line is the bottleneck of putting out more precision cout << "Thats the letter '!': " << letter_exclamation << endl; cout << "Thats the letter 'A': " << letter_A << endl; cout << text; return 0; }