You could just follow your logic to the bitter end.
Starting with what you wrote, pseudo-code for the algorithm could look something like the following:
IF (year IS DIVISIBLE BY 400) THEN
...
Type: Posts; User: Zaphod_b
You could just follow your logic to the bitter end.
Starting with what you wrote, pseudo-code for the algorithm could look something like the following:
IF (year IS DIVISIBLE BY 400) THEN
...