// CS290 Quiz (10-19-95) Solution #2 ...
// using int digit array instead of char digit array.
// Ron Paquette

#include <iostream.h>

struct BigInt {			// NOTE: DIGITS must be in REVERSE ORDER !
	int digit[100];

	BigInt operator++ () {// Add 1 and propagate carry as required... 
	  for(int i = 0; ++digit[i]  ==  10; i++ ) { digit[i] = 0; }	
	}

	print () {
		int i = 99;
		while ( digit[i] == 0 ) { i--; }	// skip leading zeros
		while ( i >= 0 ) { cout << digit[i]; i--; }
	}
};

int main()
{
	BigInt num = { 9, 9, 9, 6, 5, 4, 3, 2, 1 };		// digits in reverse order !

	num.print(); cout << "++" << endl;

	num++;

	num.print(); cout << endl;
}