Hey everyone! I just thought I would share this little technique, because it was unknown to me after a year of programming experience!
int a = 5, b = 6;
// swapping now:
a = a + b;
// a = 11
b = a - b;
// b = a + b - b
// b = a
// b = 5
a = a - b;
// a = a + b - (a + b - b)
// a = b
// a = 6
In the code’s comments, I used substitution to prove that this method works.
You may have already known about this, but since it took me a year to find out, I thought I would expedite the process for my pals at 0x00sec!
Swap on,
oaktree
