Hi, I have a problem :( with this:

IO:Code:

#include<iostream.h>

typedef unsigned long int ulong;

int main()

{

ulong a,b;

while(cin >> a >> b)

{

if(a==0 && b==0)

return 0;

int count = 0, cry = 0;

while(a || b)

{

int x = a%10, y = b%10;

a/=10;

b/=10;

if((x+y+cry)>9)

{

cry = 1;

count++;

}

else

cry = 0;

}

if(count>1)

cout << count << " carry operations." << endl;

else if(count == 1)

cout << "1 carry operation." << endl;

else

cout << "No carry operation." << endl;

}

return 0;

}

But what you'll tell about it's output? Can anyone explain...why this is so ...???Quote:

9 1

1 carry operation.

9 0

1 carry operation.

9 0

No carry operation

9 0

No carry operation

9 1

No carry operation

9 1

1 carry operation.

09 1

No carry operatio

1 carry operation